Difference between revisions of "Defense tactics"

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Getting attacked, whether by tribals, pirates or hordes of angry animals is a common event in the rimworlds. Defense against these attacks is one of the keys to having a succesful colony.
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{{for|defensive constructions against threats|Defense structures}}
  
This page details different tactics for defense and visualizations of them, from all stages of the game.
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Getting attacked, whether by tribals, pirates, hordes of angry animals or by something more alien is a common event in the rimworlds. Defense against these attacks is one of the keys to having a successful colony.
  
''' Heads up: In Alpha 17 due to the improved enemy AI some tactics will no longer be viable. Use caution. '''
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This page details different tactics for defense and visualizations of them, applicable to most stages of the game.
  
==[[Raider|Humanlike Raiders]]==
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= Core battle tactics =
  
Raiders will attack randomly chosen constructed objects and colonists. They will not attack natural rock walls (not the case for sappers), [[animals]] (unless hostile or tamed) or unpowered turrets. They will also attack [[prisoner]]s if they are captured from their enemy factions.
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No matter what sort of defenses you use, these battle tactics may be useful.
  
Raiders will usually set fire to crops in growing zones, [[power]] generation or conduits, [[wall]]s, [[nutrient paste dispenser]]s, [[equipment rack]]s, [[orbital trade beacon]]s; they will melee-attack [[Standing_lamp|lamps]], [[bed]]s, [[stool]]s, [[Table_(short)|short tables]], [[Table_(long)|long tables]], and [[door]]s; they also use [[Molotov_cocktails|molotovs]] and [[frag grenades]] on [[improvised turret|turrets]]s, [[sandbag]]s, or other targets, and some use [[EMP grenades]] to stun your turrets.
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=== Melee tactics ===
  
Raiders will prioritize firing on colonists or turrets when those colonists or turrets are firing on them, but will otherwise prioritize random objects, meaning you can put doors or walls near your defenses to temporarily distract them.
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Melee soldiers are a useful asset in your colonies, if used correctly. They can disrupt ranged enemies, because being engaged in melee interrupts and prevents ranged attacks, and staggers the enemy thus slowing movement. Ranged enemies are also forced to fight back with makeshift melee attacks with their guns, which are woefully inadequate against a dedicated brawler.
  
===Raider Preparation===
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In addition, melee soldiers can fend off invading brawlers charging into your lines, or beat up drop podding enemies.
  
Raiders will sometimes start by standing around in a group where they spawned and will continue this until they see a [[colonist]] nearby or they hit a certain preparation time limit, at which point they begin the assault. Because a colonist can set them off early, you can plan out the time you want them to attack. It is generally best to set them off early if you're well-prepared, to avoid potentially troublesome scenarios such as having no power when their timer runs out. Conversely, you should not set them off early if your defense is not prepared. Note that raiders usually take less than one day to begin, meaning that if there is an eclipse and you rely on [[Buildings#Solar generator|Solar generators]], you should not wait for them and should instead set them off early while you still have some power left.
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[[Shield belt]]s and good armor are usually necessary for your colonists to close the gap between you and the enemy. Melee attackers without the protection of shields are highly vulnerable to gunfire, even if heavily armored. Before battle, hide your melee attackers until all enemy melee attackers are engaged in battle, or put them in line in front of your gunners for quick deployment and damage absorption.
  
===Raider Equipment===
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Friendly fire is a serious issue in hand-to-hand combat, as you can easily hit your own fighters. While it is still a bearable problem if their shields are up, once the shields are down you will need to manually retarget to prevent friendly fire.
  
Raiders spawn with randomized equipment depending on their weapon and clothing budget and their raider type.
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==== Melee sortie ====
  
==== Apparel ====
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This tactic involves using a small element of melee colonists to charge enemy ranged attackers and take the heat off your own gunners.
They can range from only wearing a tattered pair of [[pants]] to [[armor vest]]s with [[power armor helmet]]s. Mercenary slashers are special in that they are the only raider type to spawn with personal shields. Tribals always come in [[tribalwear]], with [[tuque]]s and [[parka]]s only if necessary.
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Can be used to take down annoying long-ranged snipers or small gunner groups. Note that charging at entrenched ranged attackers can also divert their attention from your own entrenched forces to your charging brawlers.
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==== Melee rush ====
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Melee rushing is the tactic of sending your melee attackers to engage hostiles all at once, rather than focusing on shooting them down or sending small parties to take down troublesome enemies.
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Melee rushes can work alone, especially with quality equipment; well-equipped melee rushes can hold off an attack and cause raiders to flee despite being slightly outnumbered. They also attract a great deal of friendly fire from the enemy, as they try to shoot down your brawlers, hitting their allies in the process.
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If you aren't afraid of friendly fire, it can be combined with a firing squad from a distance for devastating effects. The brawlers cause chaos within the raiding party while the firing squad lays fire to destroy them while the raiders are trying to cope with your brawlers.
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Note that enemy melee rushes are not to be countered by your own melee rush; there is a [[#Melee blocking|much more effective tactic]] detailed below.
  
Their apparel is often damaged to some degree, making them less protective against attacks. They tend to use leather or cloth clothes, which don't provide very good protection, only occasionally using the more protective [[devilstrand]] or [[hyperweave]].
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==== Peeling ====
  
While mid-late game pirates can come with 50% or above sharp protection, with quality apparel you can push yours to have more than 70% easily. This gives you the upper hand against the not-so-well protected pirates by allowing to take more hits in battle.
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If a vulnerable gunner is under attack by melee attackers, you can 'peel' them away using your brawlers. Have them engage the melee attackers, who will then focus on your brawlers, allowing your gunner to get to relative safety.
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Trained animals automatically peel for their assigned masters, if 'Release animals' is Off. The animals will attack any hostiles coming close rather than straying off to attack distant targets. <br>
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Setting 'Release animals' to On right when another colonist in distress near the trainer causes the animals to swarm the attacker, peeling them off.
  
==== Weapons ====
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Peeling is a relatively high-risk activity, as you are trying to put a pawn at risk in return for allowing a pawn at greater risk to escape. Peeling pawns should be expendable or decently armored.
They spawn with whatever weapons their faction is willing to provide them. They can come with awful melee weapons that can't even outdamage bare fists, or charge at your colonists with mid-class [[spear]]s or [[longsword]]s. <br>
 
They often come equipped with a variety of ranged weapons too- a broken pistol, a decent slugthrower, a long ranged sniper rifle, an advanced charge rifle, high damage miniguns or even explosive weapons are all part of their arsenal. Tribals however always come equipped with bows or pila.
 
  
Weapons are assigned at random, meaning that more often than not raiders don't get to use a weapon appropriate for their skills; brawlers can often be seen charging into battle with a gun, supported by their novice snipers that can barely land a hit at any range and skilled shooters wielding a melee weapon that they can barely use properly.
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==== Self-defense ====
  
If you have your colonists equip suitable weapons according to their skills, you already have a great advantage over the raiders. You can have gunners actually capable of properly connecting shots, and melee brawlers that rarely ever miss.
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Even though they aren't as good as dedicated melee weapons, guns still hurt in melee combat, even surpassing some low-quality melee weapons. This allows shooters to have a fighting chance against melee enemies.  
  
== Defensive Tactics ==
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Shooters can fight off small animals quite easily with melee, so have them fight back instead of letting the animal chew them to death.
  
===Siege defense===
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Melee attacks with guns are a viable alternative if your colonists are adept at melee combat and the guns don't fare well at touch range. Since they don't usually emerge victorious from a 1v1 melee fight unless there is a massive skill gap, have someone else join in the fray, be it a brawler or gunner.
  
When faced with a siege, there are a few coping strategies you can use.
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=== Body blocking ===
  
You can choose to either to assault the mortar base or wait it out and repair the damage as best as you can. The choice mainly depends on the surroundings of the mortar base and your base's position. If your base is located under a mountain (your base tiles will read ''Overhead Mountain'' when you hover your cursor over them), the mortar shells won't be able to hit those tiles at all! This makes deep mining a very effective strategy against heavy bombardment. If you don't build your base into a mountain, you should at least consider digging out at least one panic room for your colonists to hide within from the shells.
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[[File:Bodyblock_choke.png|250px|thumb|right|You shall not pass.]]
  
If you assault their base, one possibility is sniping either the shells or the mortars, hoping an explosion kills many of the raiders. If you want to leave those intact, you can snipe the raiders themselves. Keep in mind that killing enough of them prompts them to assault your colony directly instead of continuing their siege.
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Enemies can be physically blocked by colonists or animals, denying them access to locations. This can be done to a significant tactical advantage.
  
If you really need to, you can wait for them to sleep, then steal their supplies and wait for them to send more. Free food and mortar shells.
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Heavily armored soldiers are needed to body block active combatants, as they will take a lot of hits while blocking, and even so they will eventually collapse due to sustained damage. They should also be able to deal good damage at point-blank.
  
====Countering with mortars====
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Blocking can be used to slow down prison breaks, seal off escape routes for enemies, or more aggressively to devastate melee only raids, detailed below.
If you have your own mortars, you can use them to fire back at the raiders.
 
  
Regular [[mortar]]s are not very good at countering sieges, given the inaccuracy; however, if you're lucky, you can always take out some of the raiders, or even the mortars.
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You can avoid heavily injured pawns just by invisibilize your pawns continuously, they will still be blocking enemy drafted pawns in hallways but cant get retargeted. But you have to pay attention, a freshly invisible pawn does not lose the agro of enemies. As an example, if your pawn gets in the door and get targeted by an enemy equipped with a doomsday, the doomsday will be shot at the invisible pawn, there are some ways of breaking the targeting process such as loss of vision, and any kinds of jumps or teleportation.
  
[[Incendiary mortar]]s are an effective way of distracting sieges as the raiders will be preoccupied with extinguishing the resultant flames. This way, 2 mortars are enough to keep them from doing any activity other than firefighting, unless it is raining or there are no flammables nearby.
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==== Melee blocking ====
  
[[EMP mortar]]s are extremely efficient siege-breakers; they can easily detonate the mortar shells, killing nearby raiders, as well as stun the mortars, preventing them from firing. Sometimes only 1-2 shells are enough to prompt them to attack.
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When faced with a full melee attack, instead of engaging enemies on the frontline, '''retreat behind your walls, and open doors to use as chokepoints'''. Leave up to '''three''' melee brawlers standing right behind (not in) the chokepoint to block enemies while cutting them down, stationing more nearby as replacements, and gunners behind to fire on the blocked intruders. This forces melee enemies to trickle in and fight with your soldiers one-by-one, making them significantly easier to dispatch of. Make sure all brawlers are heavily armored to block damage, and shielded to block friendly fire.
  
=== Melee charges ===
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This is a horribly effective way to defeat melee attacks. Compared to a regular frontline defense, this tactic significantly reduces the casualties your side will sustain. You also don't need to build anything special for this purpose- any opening or door in the wall will do. If you use [[killbox]]es then it's best that you build it in a way such that melee blocking attacks can be conducted effectively inside.
  
Pirates or Outlanders can come with all melee charges complete with [[personal shield]]s. This can prove an extreme threat to colonies, especially as they charge towards the colonists directly with their personal shields blocking large amounts of gunfire or trap damage. <br>
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=====Weapons=====
However, they are often poorly equipped, aside from the shields; they aren't particularly well-clothed or armored, and their weapons are often of low quality. They are also highly vulnerable when their shields are down.
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For maximum pain, use high-DPS guns for your backline for bringing the hurt, combined with quality melee for your frontline to deal sustained damage in between barrages.
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*The [[chain shotgun]] or [[heavy SMG]] are the weapons of choice in this situation due to their unparalleled close-range DPS.
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*Miniguns, while effective at shredding the tightly packed enemies behind the chokepoint, are generally not recommended due to the collateral damage to the walls. If you do choose to use them, aim at the middle of the crowd so you can hit as many enemies as possible, while also reducing the damage done to the walls.
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* Grenades may also be used and can be incredibly effective at stacked melee groups trying to enter through a chokepoint, but should be ground-targeted rather than freely targeted by the pawn, to avoid grenading your own melee blockers.  Grenades can land anywhere within 1 tile of the targeted tile, so place your ground target 1 tile further away to avoid accidentally grenading your own forces or blowing up the walls that are enabling you to melee block.  Like [[minigun]]s, this will often shred the walls of your chokepoint, so building extra layers of walls at the chokepoint can be helpful.
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* Pawns, both friendly and hostile, cannot stop and stand on top of sandbags, and are substantially slowed while moving over them.  This can be used to force targets into a particular tile or slow the progress of an incoming force.
  
Ideally you will want to have a few brawlers on your own, preferably with better equipment, such as full armor and quality weapons to fight the incoming charge.
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Stray bullets will not harm your tanks if the shooter is not standing too far behind; that means it is not a good idea to use long-range fire.  
  
If you happen to not have enough brawlers to handle the charge, attempt to concentrate fire to break individual shields, then kill any unshielded raiders. If they do come close, get your colonists to fire point-blank at them if it deals more damage than unarmed, otherwise assign 2 colonists to beat up each attacker.
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Combined with measures to force enemies into close range, it may be effective against ranged enemies as well, but beware as enemies can still fire until you start beating them up.
  
Explosive weapons are not very useful on them due to their shields protecting them, but you can still try and break their shields with them. <br>
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=====Animal Melee Blocking=====
Incendiary weapons penetrate the shield and set the raider on fire, distracting them. While their shields block gunfire, the distraction makes it easier for it to be broken, and makes there be fewer enemies engaging your colonists at a time. <br>
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Animals can be used as a form of melee blocking by creating a zone for just the single tile immediately in front of the chokepoint or door and assigning a bunch of animals to it. The animals prevent hostile attackers from traversing through that space, and the animals will generally counter-attack en masse anything that attacks them. This often results in substantial injury or death to animals, of course, so ensure the animals used are expendable (ie. not bonded or otherwise critical to the colony), and don't use explosive animals like Boomalopes or Boomrats. This is most effective against non-human threats such as manhunter packs and insectoids.
EMP weapons can be used to devastating effect by downing their shields, leaving them to the mercy of your colonists' gunfire.
 
  
<gallery widths="300px" heights="300px" class="center" mode="nolines">
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<gallery widths="400px" heights="400px" class="center" mode="nolines">
File:Melee_charge_edge.png|Full melee charge at the edge of the map, with everyone shielded and equipped with melee weapons.
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File:Melee_test_eleplants_normal.png|10 manhunter elephants vs 3 armored brawlers and 4 armored gunners; all colonists are downed while all elephants remain standing.
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File:Melee_test_eleplants_block.png|Same situation but with melee blocking; only 1 colonist downed, and all elephants defeated.
 
</gallery>
 
</gallery>
  
===Dealing with Explosives===
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=== Spacing out ===
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Each colonist should ideally stand '''at least 1 tile away from other colonists''', thus reducing the chance of enemy bullets hitting somebody else after missing the original target, which deals a lot of damage to static grouped up defenders.
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Explosives will also hit fewer people this way, though there are better countermeasures than simply spacing defenders apart.
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=== Dealing with rockets ===
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Rocket launchers are painful to deal with, due to the huge area damage and long range. In the mid-late game they are one of the biggest threats from the enemy. <br>
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The best way to deal with them is to distract them to fire elsewhere, in order to greatly reduce the amount of damage received.
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Raiders with rocket launchers are often seen in the backline preparing their rockets, while their allies lay down fire at the front. They get distracted quite easily, wasting them on animals or lone colonists. This can be exploited simply by '''charging them with single units''', which will cause them to fire it towards them and away from the rest of your forces. They may fire at point-blank, injuring themselves and their comrades, or with some luck in positioning and fast melee units, you can even intercept them before they can lock on with their rocket launcher, forcing them into hand-to-hand combat and eventually yielding the launcher which can be captured for future use.
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This is a high-risk but necessary move to take, and some pawns may need to be sacrificed.
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For successful distraction, you have to make your charging units the only available targets for them to consider attacking. If they have a better target with less possible friendly fire, they may attack them instead. To combat this, have all your other units, including animals, stay completely out of range until the rocket launchers have been neutralized.
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==== Psychic insanity lance ====
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Using a [[psychic insanity lance]] on a raider will cause their allies to waste rockets on them. Often, this gets rid of all of the rockets in a raid, and also causes a lot of damage. Psychic lances can generally be used from relative safety, due to their extensive range (though they do require line-of-sight to the target), and have a relatively low cost. Targeting the most durable raider will help make sure as many rockets are wasted as possible.
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==== Shielded unit deployment ====
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Deploy brawlers equipped with [[shield belt]]s and heavy armor, letting the shields block the blast as well as some fire. There are two variations of this:
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#Move in a zigzag pattern in front of the enemy to draw their attention, and dodge the rockets when they are discharged.
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#Directly charge into the fray with your shielded fighters, such that any rockets fired at them will likely hit other enemies as well.
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Be prepared to sacrifice someone, as their shields are very likely to be broken whether by the blasts or concentrated gunfire.
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==== Expendable animal charge ====
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Have animals that are both expendable and fast charge the enemy, rocket soldiers included. It's especially good if the animals can survive a rocket blast, as it allows them to continue distracting any further rockets.
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For multiple rocket launchers, send animals in batches, such as by assigning animals to different handlers and setting them to attack at different times, to prevent them from being wiped out by a single blast.
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While they do not need to be obedience- or release-trained, as you can use animal area zones to force them into areas, doing so is less effective as animals have a delay before moving into their assigned zones and may be very far away.
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==== Friendly fire with rockets ====
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Besides being caught in a blast, enemies can also take friendly fire if the rockets impact them instead of your colonists.
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You can increase the chance of this happening by having the rocket travel over as many enemies as possible through aligning your distractors. Each rocket traveling over a pawn has up to 40% chance to impact, setting it off early.
  
Raiders wielding explosives can be a serious threat to colonists, especially those equipped with the [[Doomsday rocket launcher]] or [[triple rocket launcher]]. Rocket-wielding Pirates often spawn in mid-game raids, and having a coping strategy is crucial to safeguarding your colonists.
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If you see that an enemy rocketeer has locked onto a brawler, you can also choose to charge the enemy with that brawler. It will either cause the enemy to deal immense friendly fire, or allow you to take out the rocketeer outright.
  
An important thing to note is that explosives are not blocked by cover, but are stopped by walls. This means your colonists covering behind sandbags will be hurt by the explosion, but not those hiding behind a wall.
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==== Killbox tactics ====
  
====Thrown explosives====
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Rockets are much more dangerous in a killbox where colonists and turrets are closely bunched together. If you're unlucky, a rocket will set off turret explosions, causing additional damage. Rocketeers are a priority target that need to be rapidly eliminated as soon as they enter.
  
Raiders with thrown explosives are horribly short-ranged, giving your colonists a chance to shoot them down before they can even throw a single grenade.
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However, killboxes do provide 2 crucial advantages: range restriction and concentrated fire. This allows you to direct concentrated fire onto the rocketeers to neutralize them rapidly.
  
As [[frag grenades]] have a fuse and small radius, evacuating colonists can safely avoid the damage.
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=== Rescue ===
  
[[Molotov cocktail]]s explode instantly, and can set your colonists on fire; while they do not cause as much direct damage as frags, they can cause your colonists to exit cover and run around erratically, exposing them to gunfire. Downed colonists will certainly die from fire unless extinguished or rescued. <br>
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When a colonist is downed or severely injured, it's best to drag them out of the fight immediately. Don't leave them there otherwise they risk dying from stray bullets or blood loss. You don't really need to send them directly to hospital; just drop them off somewhere outside of active combat.  
The fires started can also be damaging to your base and can burn down vital structures such as power conduits and generators.
 
  
[[Incendiary launcher]]s are functionally the same, however they have a longer range, making them harder to deal with.
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Colonists lying outside cover are riskier to rescue. Choose the right time to pull them out, ensuring that there are no melee enemy nearby that could tie up the rescuer, and use your best-protected colonists. Don't allow anyone near at other times as they may draw fire. Consider drugging your rescue team with [[go-juice]] if the pawn you are rescuing is under heavy fire, as this will both increase the rescuer's speed and improve their pain resistance, making them less likely to be downed. Using a [[jump pack]] {{RoyaltyIcon}} to rapidly jump in and pull them out of combat, with the i-frames incurred during jumping, makes this significantly faster and safer for both rescuer and rescuee. [[Locust armor]] {{RoyaltyIcon}} can be substituted at the cost of armor, but ideally should be paired with a [[shield belt]] to make up it. At high qualities, for the short duration of exposure, a shield belt can be superior as it prevents all damage, including that which would slow the pawn or reduce medical skills.
  
[[EMP grenades]] are less dangerous overall, as they do no physical damage; still, they pose some threat to melee brawlers by downing their shields, as well as stun turrets.
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Non-combatants, such as those incapable of violence, are ideal to serve as rescue members by standing near a fight to pull out downed colonists. Non-combatant doctors should wear a [[shield belt]] and carry quality medicine at all times, so they can be drafted during combat and quickly tend to wounded colonist on the field. Non-combatants should be equipped similarly to above, though with no ranged weapons they have fewer restrictions on wearing a shield belt to prevent damage, and their value proposition improves.
  
====Rocket launchers====
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If a colonist cannot reach the hospital in time, typically ~2 hours from death or less, have the doctor patch colonists up a little such that they can reach the hospital without bleeding out, then carry them there. You will have a higher infection chance this way, but it's better than the colonist bleeding to death while on their way to the hospital. The remaining injuries can then be treated in the cleaner environment.  Alternatively, an untuned [[biosculpter pod]]{{IdeologyIcon}} can be kept nearby and the injured pawn loaded into it. This can save pawns moments from death, that a doctor could not treat fast enough to save. The cost of the pods can be considerable however, and they must be de-tuned or deconstructed and reconstructed after each event.
  
Raiders with rocket launchers are arguably more dangerous, due to their long range and high damage explosive attacks that can easily down, maim or kill several colonists at once. The Doomsday rocket launcher has the ability to set large areas on fire, devastating any flammables in your colony, while the [[triple rocket launcher]] can kill colonists outright with its 3-round burst.
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=== Friendly fire management ===
  
However, they are not good shooters; they don't have much qualms about injuring their comrades at all, even if there's only 1 lone colonist but many of their fellow raiders around them. This can be exploited simply by making a colonist equipped with a [[Armor#personal_shield|personal shield]] run towards them. They will often hit their allies, especially when using the Doomsday rocket launcher, while the shield will block the damage from the explosion. <br>
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Friendly fire is a serious issue when facing close-range attackers, especially manhunter packs. If they manage to run past your barrage of gunfire to engage your ranged soldiers, they may receive more injuries from friendly fire in the ensuing chaos than the attackers themselves. You need to be careful when directing your troops so you don't hit your own forces by accident.
Note that this is somewhat risky as your colonist's shield is likely to be broken from the resulting concentrated gunfire even if it did survive the blast; afterwards, your colonist may be injured, downed or even killed. Still better than having many colonists die from a rocket launcher though.
 
  
Alternatively, you can use one of your more expendable battle animals to charge the attackers; this has the same effect except your animal will most likely die from the rockets.
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Pawns can fire over the shoulders of friendlies up to 2 tiles (i.e. 1-tile space in between) away, meaning that you can have a 3-wide row of soldiers without friendly fire, which is not recommended.
  
=== Sappers ===
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# When the enemy breaks the ranks, only let the soldiers closest to melee attackers fire at them.
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#*Manually re-target the others to fire at another direction, repositioning them if needed.
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# Disable 'Fire at will' when the enemies are closing in so they won't switch targets, potentially causing friendly fire.
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# Have only 1 line of shooters so stray bullets, including bullets fired horizontally at melee attackers, will less likely hit someone.
  
Sappers will mine and blast their way through any obstacles, such as natural or constructed walls, though avoiding high-health ore veins. They will also try to circumvent your defenses to attack from another direction.
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=== Firing at cover ===
  
With enough manpower in an open base, sappers can usually be treated as a normal bunch of raiders. However, for killbox-dependent, walled or mountain bases, this can be a problem.
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While cover works best against attacks coming straight, it's usually better to fire straight at the target instead of from an angle. If you fire straight at it, only 1 unit of cover will be effective, but if you shoot at a diagonal angle, 2 units of cover will be effective, both being capable of blocking shots, in total contributing to higher cover effectiveness.
  
Their grenadiers deal heavy damage to structures; even the toughest [[plasteel]] walls will not stop them for long. Thus, do not rely on perimeter walls to hold them off.
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However, if you can get to the point where you're almost firing horizontally at the raiders, then cover becomes nearly ineffective at protecting the raider, allowing many more shots to connect. This often requires you get out of your own cover, so it's not recommended unless you can find suitable cover nearby.
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For skilled medium-long range shooters it's best to shoot from a great angle to hit them from the sides. <br>
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However for not-so-good or short ranged shooters it's better to directly fire at them instead as the extra distance will make it harder to land hits, or cause the raider to exit firing range.
  
With enough manpower, you can choose to intercept them while they're tunneling into your base. Concentrated fire is extremely devastating in a tunnel, and you can quickly dispatch any diggers- provided you don't get noticed.
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'''The below shows the difference firing angle makes on the hit chance of a pawn hiding behind cover.''' Cover values are from Alpha 16, but the mechanics remains unchanged.
  
If you're in a mountain base you can draft a few melee pawns to wait at the entrance, as well as a few ranged pawns facing the entrance to fire down the tunnel. When they do break in you will already have prepared to face the raiders and can pour a stream of lead right into their face or cut them into pieces.
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<gallery widths="400px" heights="400px" class="center" mode="nolines">
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File:Fire_cover_straight.png|Firing straight at a raider in cover; 1 stone chunk blocks 40%.
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File:Fire_cover_angled1.png|Firing at an angle; 2 stone chunks block 48% total.
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</gallery>
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<gallery widths="300px" heights="300px" class="center" mode="nolines">
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File:Fire_cover_angled2.png|Firing at a greater angle; 2 stone chunks block 37% total.
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File:Fire_cover_angled3.png|Firing almost horizontally; 1 granite chunk blocks 8% only.
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</gallery>
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== Mobile warfare ==
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=== Flanking and Surrounding ===
  
Remember to cover up any tunnels they dig, as they open up another entrance for raiders to come straight into your base. Or you can fortify it and turn it into a booby-trapped chokepoint to catch unsuspecting raiders seeking direct entry.
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To flank enemies, have some defenders approach enemies from the sides or the back instead of concentrating fire on the front. To surround them, attack from all sides.
  
You can 'funnel' sappers by using turrets placed inside your base; sappers will avoid these, and will go to an area without the turrets. Keep in mind that you will have to kill them by drafting colonists instead of relying on your turrets.
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Enemy ranged units often stay in the same spot when engaging your colonists, and they tend to have effective cover facing one direction only, making them vulnerable to flanking. Flanking enemy ranged units can distract them and cause them to lose their cover advantage with attacks coming from multiple sides. While this makes you lose the advantage of high-quality cover, it is balanced out by the enemy's loss of cover.
  
=== Drop pod attacks ===
+
This works best against entrenched ranged enemies attacking you from one side. They should be occupied with attacking frontal targets so you can creep up to them to unload lead on them from another angle. It's even better if you pair with melee to tie them up, buying time for your soldiers to get into position and preventing them from moving into new positions.
Sometimes pirates or mechanoids will come in drop pods. If they land at the edges, they can be treated as a normal raid party, unless you have expanded to the edges with your walls, in which they will land inside your base.
 
  
Once they choose to land in the center, however, things will get ugly. By landing in the middle, they bypass most of your conventional defenses, and you can't use your cover advantage against them. Trying to bombard them with mortars or use other explosive weapons also causes great collateral damage to your structures.
+
Rounding up any fleeing survivors also becomes easier if you have someone (especially melee fighters) blocking off escapes from behind.
  
Fortunately for you, they have a short delay before they open and all hell breaks loose. They also comes in smaller numbers than regular raids.
+
==== Moving in ====
  
Once you see them land, you should immediately draft any nearby armed colonists to the site, whether they are your designated soldiers or not. Let them hold off the attackers for a while before your soldiers arrive to help.<br>
+
While moving in you need to make sure you stay far enough away from enemies, and directly right-clicking on the destination will nearly always result in a path that crosses with the enemy.
Any non-fighting colonists should immediately be evacuated to a nearby area. They may still stay close to help in rescue efforts, pulling out any downed colonists. Make sure it's safe to rescue them- as in rescuers not walking right through the crossfire and back again to get a colonist to the hospital.
 
  
Like other raids, raiders will attempt to flee; however, if they land inside enclosed areas of your base they will be trapped allowing your colonists to beat them up and capture them at leisure. You simply need any blunt weapons or even bare fists; they won't try to fight back at all.
+
This can be overcome by '''shift-clicking to form a path for the pawn to follow''', making sure to keep sufficient distance.
  
==== Cover ====
+
Shield belts, drawing enemy fire from a different direction, or simply using walls and terrain to block projectiles are all good ways to move in.
  
You should use your furniture as cover and fire from behind them. Most of the time they serve as the only source of cover. Be careful as pirates will also utilize the furniture as cover as well; to combat this, attack from multiple sides or use melee fighters. You can also have 2 colonists hiding behind each doorway; they enjoy full cover while firing into the room.
+
==== Wide arc flank ====
  
It's not practical to build sandbags inside your rooms as they reduce the Beauty of the room, drop pod attacks are rarer than normal raids and the enclosed space makes cover less effective.
+
This tactic is about scattering your fighters in a wide arc facing your enemies. Rather than huddling together behind continuous lines of cover such as lines of rock chunks, each soldier should be taking cover on their own, and be able to shoot straight at the enemy without anyone else in between.
  
You can also use any shielded or heavily armored colonists as meat shields to soak some damage. Send them right in front of your ranged units to block damage, while the ranged units fire over their shoulders.
+
This gives more flexibility in positioning as well as greatly reduced vulnerability against explosives or collateral damage. Engaging your flankers also results in enemy fire being scattered, so focus fire won't take down anyone easily.
  
==== Fire management ====
+
You can deploy shielded colonists to draw fire effectively from your gunners, though they need to be arranged carefully so as to be able to tank without taking friendly fire.
  
As most furniture is flammable, you will need to extinguish any fires if you want to prevent damage.
+
Perfect against preparation raids or in-construction siege camps when you can't use your static cover and they won't directly attack your base upon arrival. However if the enemy has a significant cover advantage (such as sandbags) then this tactic may not work out in your favor.
  
If you prioritize the defeat of the raiders over the loss of your property, and the walls of the room are fireproof, you can simply let fires burn, or even start some more, while you evacuate the room and close the doors, cooking the raiders alive.
+
=== Tanking ===
  
Not effective against mechanoids as they aren't affected by temperature and cannot be set on fire. Incendiary weapons need to score direct hits on them to deal damage.
+
This tactic simply requires you put your shielded colonists before your static gunners to partially soak up gunfire. This is best when you have insufficient cover, or additional cover to block more bullets for your frontline tanks.
  
==== Equipment ====
+
As with any tactic involving meat shields, this poses a great risk to colonists' lives. If the colonists' shields are downed and they are not well-armored, you will have to get them to retreat behind cover until their shields come back online, otherwise your colonist will be exposed to ruthless gunfire.
CQB weaponry such as [[heavy SMG]]s, [[pump shotgun]]s or melee weapons work best to deal with drop pod attacks. <br>
 
Mid-range weapons like the [[charge rifle]] or the [[LMG]] are also good for clearing out larger rooms. <br>
 
  
Long-ranged weapons are less effective due to the confined nature of indoor spaces giving them less space to work effectively.
+
Beware of high damage-per-hit weapons which can instantly down shields.
  
Explosive or incendiary weapons are not recommended due to the heavy collateral damage when using them indoors, though if you don't care about that, they make excellent room-clearing weapons.
+
=== Hit and run ===
 +
Against slow or static targets you can employ this to weaken them. You will need several fast-moving long-ranged colonists, possibly with [[charge lance]]s or [[bolt-action rifle]]s. Have them move within range to fire, quickly exiting range once the enemy returns fire. Repeat until conditions are no longer safe to conduct this attack, such as enemies entering full aggression and charging.
  
=== Tribal raids ===
+
Effective against siege camps and preparing raiders for they tend to stay put at their location until they are aggravated into attacking.
  
[[File:Tribal_raid.png|300px|thumb|right|Tribal raiders arriving in large numbers, with so many that their name labels are visually blocking some of the raiders themselves.]]
+
=== Kiting ===
 +
This tactic is effective when all or the most dangerous enemies are slow [[moving]].
  
Tribal raiders come in large numbers, but with relatively poor equipment; as such, it may require different strategy compared to pirate or outlander raids.
+
Ideally, you have fast colonists - 120%+ [[Moving]] - running near moving enemies, drawing their attention. Constantly outrun the enemy while staying within their attention range. If not, the enemy will engage other targets instead. This way, kiters can distract a group of enemies by leading them around the map. Other colonists can fire at the kited enemies. And if the kiting colonist is fast enough, they can take a few potshots (once they are far enough).
  
Overall, they can deal heavy damage to your colonists; despite not carrying guns or advanced melee weapons, their neolithic weapons can still dish out heavy damage, especially when combined with their sheer numbers. Tribals also tend to be better at combat, with most tribals being acquainted to some combat skill or another. <br>
+
As long as your colonist safely outruns hostiles, you're fine. However, if the enemy catches up, your colonist will be slowed and on his own.  Even with a regular speed colonist, kiting can be beneficial, as it gives valuable time for your ranged colonists to shoot.
However, as tribalwear is awful at protection (depending on the material it may even be none) and they do not wear any form of armor, they are easier to kill individually than other raiders.
 
  
Their archers are dangerous; their bows can be fired from a somewhat long distance, their pila can easily kill or incapacitate a colonist, and they always come in a large volley. As with most defensive strategies, cover is essential when fighting them. <br>
+
====Equipment====
Warriors are less of a threat as they don't use shields (unlike their pirate counterpart, the mercenary slasher), making them vulnerable to your gunfire.
+
A fast, long-range weapon is safest - e.g. the [[assault rifle]] or [[bolt-action rifle]]. A fast moderate-range weapon (e.g. [[machine pistol]]) may be used against melee enemies, but is riskier. Slow weapons such as sniper rifles are not recommended, as the need to stand still for extended periods puts soldiers in grave danger.
  
Removing rock chunks helps in dealing with tribal raiders hiding behind them, making them much easier to hit.
+
Kiting colonists should be lightly armored while still maintaining a fast speed.
  
==== Weapons ====
+
<gallery widths="400px" heights="400px" class="left" mode="nolines">
You will need sufficient mid-long range firepower to take down tribal archers from a distance, for getting close to them in order to fire your guns is pretty much suicide. Use [[sniper rifle]]s, [[survival rifle]]s or [[assault rifle]]s, as these are the only 3 weapons that can effectively hit archers at maximum range. Tribal archers can fire arrows at up to 32 tiles away, which only these weapons can reach.
+
File:Kiting_1.png|'''Kiting #1 - when enemies are as fast as the majority of your colonists. Optimal scenario shown - all raiders are lured to 1 colonist. Ideally you have >1 colonist faster than the enemy. '''<br><br> Black circle is the ideal kiting route, when your kiter is fast enough. Red lines can be used if the kiter is too slow to run a full circle. Enemies might catch up, but you've gained valuable time for colonists to shoot
 +
File:Kiting_2.png|'''Kiting #2 - when all colonists can outrun and outrange the enemy. Retreat just before you get into enemy range.
 +
</gallery>
  
Their melee units are best taken down with close-mid ranged weapons that have high stopping power. [[Charge rifle]]s work wonders at this range, as well as the [[pump shotgun]] and the [[heavy SMG]]. Save your long-ranged weapons for taking out archers.
+
== Additional tactics ==
  
Crowd control is an important aspect in defeating tribal raids. The [[Minigun]] or [[LMG]] is an effective weapon to use as it can easily mow down groups of raiders from a moderate distance.
+
=== Baiting ===
  
Explosive weapons are also useful in crowd control, if you know how to use them.
+
Faster, more well-protected colonists can be used to lead enemies into traps or ambushes. This is for situations when you have defenses concentrated in one direction, but the enemy comes from another.
  
Rocket launchers are single-use, but devastating on crowds, while grenades require you get closer to throw, putting your colonists at risk, but capable of taking out a few archers with each blast. A single hit can easily kill the unprotected tribals.
+
[[File:Bait tables 2.jpg|300px|thumb|right|Setting the bait furniture on fire only hastened this raider's demise.]]
  
Explosive mortars, while inaccurate, can easily destroy a sizable group of tribals at once if they hit. <br>
+
Cheap furniture also makes good bait. Raiders will smash any player-built furniture left out in the open, such as tables or wooden stools. This can be helpful to split them up or lure them into range of your defenders' weapons.
Grenades can hit archers hiding behind cover, taking out a few of them, though you have to risk a colonist or two in order to even get close enough to throw them. <br>
 
  
Incendiary weapons are also good at getting them out of cover for your colonists to hit.
+
=== Luring in ===
  
==== Pacification ====
+
Enemies can be lured closer to your base by keeping your colonists out of sight, then swarming out to attack once they draw closer to your base. Afterwards they will switch to engage your defenders.
If you don't want tribes to send their warriors in the ''hundreds'' you should capture, heal and release all incapacitated tribals (though if you see any good potential colonists you should keep them). Later on, when the relations warm a little, you can give them silver to pacify them, and even turn them to your side.
 
  
=== Utilizing animals ===
+
This can be used to negate the range advantage of enemies. It also works well with melee blocking to lure enemies into trying to jam themselves into your chokepoints, rather than beating up your base.
  
The animals on the map, whether tamed or not, can be used to your advantage.
+
=== Animals ===
  
Raiders never come using tamed animals so the advantage of animals on your side is solely yours.
+
The animals on the map, tamed or not, can be used to your advantage.
  
====Tamed animal release====
+
==== Tamed animal release ====
 +
{{Stub|section=1}}
  
 
With your handlers, you can amass a huge army of animals to charge the enemy. Simply find a good combat-capable animal, tame it, and train it to learn Release.
 
With your handlers, you can amass a huge army of animals to charge the enemy. Simply find a good combat-capable animal, tame it, and train it to learn Release.
  
There are many animals that are good for this purpose. [[Wild boar]]s are an excellent choice as they can graze, reproduce quickly, move fast and pack a punch for its size. If you like bigger animals, you can also tame [[elephant]]s or [[rhinoceros|rhino]]s.
+
There are many animals that are good for this purpose. Main tactics are take quality vs take quantity.
 +
* Large animals like [[Thrumbo]]s, [[elephant]]s or [[rhinoceros|rhino]]s have good DPS and their large health scale means that damage is less likely to kill them before they can get patched up by your doctors. However they are harder to tame and very hard to keep a big amount. Replenish losses for a long time (especially Thrumbos). Due to smaller amounts, in case of big raid, they can block only few gunners and will sooner be downed by others.
 +
* [[Warg]]s and [[bear]]s offer a good balance of DPS, breedability and feasible number to keep (can eat bodies of raiders). Better block large number of gunners.
 +
* [[Husky|Huskies]] significantly less DPS than the others, but are easy to breed, feed, and provide hauling. Can block big raids.
 +
* Dryads don't need food, training, breed and can self-heal. Colony only need to maintain trees. Clawers are the best choice for meat attack, while barkskins for tanking. Use separately: clawers are faster than barkskins, and barkskins will not perform their main duty.
  
==== Meat shield ====
+
Tamed animals also cause pirates to fire near their allies in a bid to get them off their allies, potentially causing friendly fire.
The animals surrounding a handler can be used as a convenient meat shield as they take bullets, arrows and other range attacks (but not explosives) for their master. Provided they don't stray too far, they won't receive friendly fire as the shooters simply fire over them. All you need is to train Obedience, instead of Release.
 
  
You can also position your colonists behind animals if you're desperate for cover. This works with any animal, even non-tamed, but is less effective as the animal will wander around on its own, while trained animals will surround their master. You also risk having the animals go manhunter and turn on your colonists, especially if the animal is prone to aggression (such as bears, if you're foolhardy enough to use them as cover).
+
==== Strategic zoning ====
 +
Raiders take their sweet time to exterminate any trace of your tamed animals on the map. This can be exploited to your advantage, as long as you're willing to have a few animals valiantly sacrifice themselves.
 +
 
 +
*'''Distraction''': If you let your animals run all over the place, raiders may be tied up trying to wipe out the animals. This can give your colonists time to prepare, such as entering defensive positions or running to your mortars to fire a few rounds, as well as scatter the raiders making them easier to deal with. Raiders wielding rocket launchers also tend to waste them on your animals, leaving your colonists and structures mostly unharmed. However if they see better targets they will come at them instead.
 +
*'''Direct offense''': Besides distraction, animals may also engage raiders, harming or killing them.
 +
*'''Manipulation''': Animals can be moved around without the need of training Release, simply by changing the allowed zone of your animals. A short time later, the animals will move towards the zone and stay there. When animals are sleeping you can put animal sleeping spots beneath them and then remove them to wake them up. ''Changing'' the animal's zone also immediately forces it to move, at high speed, if they are not in the area of the new zone.  This can also be used to update an existing zone's area by changing the animal to a different zone (which they aren't in the area of) and then back to the original zone again.  Untrained animals will flee from threats, but will fight back to defend themselves if they are damaged by a hostile.
 +
**'''Aggressive zoning''':  Zone animals in a place where you are expecting an encounter with enemies. Enemies will notice the animals and will start attacking, making them fight back and injure or even down the attackers. This method works for any animal, even those that cannot be trained. Remember to undo the zoning otherwise the animals may starve. [[Boomrat]]s are especially useful by causing explosions, setting raiders on fire and delaying their assault.
 +
 
 +
**'''Animal chokepoint''': Zone the animals in a chokepoint, creating a dense cluster.
 +
***This is vulnerable to AoE weaponry so increase the area of the zone to make it that animals don't get too tightly together, if the enemy has explosives.
 +
 
 +
==== Aggravating animals ====
 +
If you have any easily enraged wild animals ([[emu]]s, [[thrumbo]]s, etc) standing near the enemy, you can shoot them to anger them and make them charge at the enemy.
 +
 
 +
You can also opt to enrage an animal then have a fast colonist (>130% Moving) lead it towards the enemy. Some enemies will stop and engage the animal, potentially causing it to switch targets. For quite the obvious reasons it's best to equip a shield belt on the kiting colonist if he isn't the one enraging the animal.
 +
 
 +
For this, larger animals are best due to their high health and damage. A thrumbo can be considered a godsend in a raid; just send 1 straight into the raider hordes, and let 'er rip. <br>
 +
Smaller animals are faster and hard to hit, making them decent distraction and causing a hefty amount of friendly fire among the enemy as well.
 +
 
 +
Remember, if you can down the animal easily with colonists, so can the raiders.
 +
 
 +
Similarly to this, a [[Manhunter]] pulse on a flock of wild (or tamed but not trained) animals can wreak havoc on raiders, just make sure that your own pawns are too far away to be targeted. It may make sense to have some fenced-in pastures at the edge of the map for this very purpose.
 +
 
 +
=== Meat shield ===
 +
The animals surrounding a handler can be used as a convenient meat shield as they take bullets, arrows and other projectiles (but not explosions) for their master. Provided they don't stray too far, they won't receive friendly fire as the shooters simply fire over them. All you need is to train Obedience, instead of Release.
 +
 
 +
Slaves with shield belts are also a good sponge for bullets. New meat shields can be obtained from survived and enslaved raiders.
  
====Strategic zoning====
+
=== Base scattering ===
Raiders take their sweet time to exterminate any trace of your tamed animals on the map. This can be exploited to your advantage, as long as you're willing to have a few animals valiantly sacrifice themselves.
+
 
 +
This is a '''last-ditch tactic to defeat humanlike enemies''' if you are significantly outnumbered.
 +
 
 +
Instead of engaging them right away, let enemies scatter around the base first. After they scatter widely apart, divide and conquer, using large groups of soldiers to overcome them with ease, while others are busy demolishing other parts of your base.
  
*'''Distraction''': If you let your animals run all over the place, the raiders may be tied up trying to wipe out the animals. This can give your colonists time to prepare, such as entering defensive positions or running to your mortars to fire a few rounds, as well as scatter the raiders making them much easier to deal with. Raiders wielding rocket launchers also tend to waste them on your animals, leaving your colonists and structures mostly unharmed.
+
Remember to patch up the base after the damage done. Coolers are especially tricky as they serve as weak points and are expensive.
*'''Animal chokepoint''': You can have a chokepoint in your base, combined with a small animal area covering the chokepoint. Raiders will notice the animals and will start attacking, making them fight back and injure or even down the attackers. This method works for any animal, even those that cannot be trained.
 
  
====Aggravating animals====
+
=== Outside help ===
If you have any easily enraged animals such as [[timber wolf|timber wolves]], [[cougar]]s, [[grizzly bear|grizzlies]], rhinos or others, as well as a very fast colonist (>130% moving; Go-juice, or 2 bionic legs), you can shoot the animals then have the fast colonist lead them right into the raiders. Some of them will stop and engage the animal, causing the animal to switch targets.
 
  
It is best that you equip the fast colonist with a [[personal shield]] due to the high risk of walking near the enemy- you can even consider it as a suicide mission, given the task at hand.
+
If the [[AI Storytellers|storyteller]] is feeling somewhat merciful, outside help may come to save the day.
  
For this, larger animals are best, as the smaller ones often get killed before they can enter melee range(unless you can enrage multiple at a time, or the enemy is pure melee). The chaos ensued means that the pirates will receive a significant portion of damage from friendly fire in addition to the damage from the animal itself. <br>
+
Don't count on this however, as these rarely happen on their own, and most of the time you still need to fend off the raiders yourself.
A [[thrumbo]] can be considered a godsend in a raid; just send 1 straight into the raider hordes, and let 'em rip. <br>
 
If you have a manhunter pack coincide with a raid, then even better.
 
  
Remember, if you can down the animal easily with our colonists, so can the raiders. Trying to send just 1 small animal and it will die pretty soon, doing little other than being an annoyance.
+
==== Friendly reinforcements ====
  
== Battle tactics ==
+
Occasionally while hostiles are on the map, a friendly military caravan will come to bolster your defenses. The threats may also coincide with friendly trade caravans, visitors or passersby, who will help to engage a common enemy.  
You can face off your opponents in a variety of methods. These methods are more aggressive, and focus more on defeating enemies than holding off against them.
 
  
=== Diffusion & Distraction ===
+
This requires you be already allied with some factions, so that they will send help of meaningful value; otherwise they may just send a few people who will quickly get downed and serve no purpose other than distraction.
Diffusing your opponent consists of separating the melee attackers from the ranged, and dealing with each of them with your melee and ranged colonists.
 
  
Distraction makes your opponents attack other less vital targets, slowing their progression in their invasion.
+
Besides actual assistance, traders may also come with around 550 - 1000 points, enough to hold their own against a smaller raid. This allows you to have decent fire support around half the time, simply by calling in 1 trade caravan once every day (assuming alliances with all 4 non-pirate factions). It costs goodwill (or silver pre-0.19) but allows you to trade, as well.
  
==== Grouped forces ====
+
You may also call for additional help from allied outlanders at a cost of -20 goodwill (tribals are unable to send help due to technological limitations). This can be repaired by diplomatic gifts, or rescuing and treating downed friendlies.
If you can outgun the raiders, you can spread out your defenders in small groups over a moderate area instead of concentrating them into 1 large group. Raiders will tend to split apart to deal with the grouped forces, allowing your forces to concentrate fire to defeat individual threats. It also makes explosive weapons less dangerous.
 
  
==== Distraction turrets ====
+
==== Common enemy ====
Singleton turrets do not deal much damage, but can provide distraction. If you use chunks or sandbags to slow down approaching raiders, you can catch some melee attackers in the explosion as well.
 
  
==== Animal distraction ====
+
If mechanoids, manhunters or another enemy faction show up, raiders may stop to engage them. This causes losses to both groups of enemies, making it easier to pick off the stragglers. Being concurrently raided by two different enemies at once is more common during the ship reactor start-up phase, making it slightly easier to survive the onslaught.
As said above, letting your tamed animals wander all over the map can seriously hamper enemy progression and spread out the enemies over a large area. They often take so much time that they won't reach firing range so you may have to use your melee colonists instead.
 
  
=== Kiting ===
+
If there are unopened [[ancient shrine]]s you can open them, which may contain artifacts, mechanoids, confused spacers, all useful against raiders, or none of the above.
This specialized tactic works effectively in some situations, but if you don't use it correctly it's basically a suicide mission.
 
  
It involves the use of a fast colonist (depending on the situation, they should have 120-140% or more Moving) running near the enemy to gain their attention, then outrunning them. The kiting colonist should be armored, preferably equipped with personal shields, to guard against the risks involved.
+
Using the [[psychic animal pulser]] or the Manhunter Pulse psychic ability is essentially invoking this tactic, but you need to be very careful when using it.
  
Kiting is extremely high risk. As long as your colonist safely outruns hostiles, you're fine. However, once the enemy catches up, your colonist will be brutally beaten up, shot and cut apart while being unable to escape, unless you are ''very'' lucky.
+
==== Environmental hazards ====
  
=== Firing at cover ===
+
Very rarely, when unable to put up a proper fight, you can count on Mother Nature to play for your side. Invaders will come to you without proper protection against the weather. You will be able to fend off the attack without confrontation.
While cover works best against attacks coming straight, it's usually better to fire straight at the target instead of from an angle. If you fire straight at it, only 1 unit of cover will be effective, but if you shoot at a diagonal angle, 2 units of cover will be effective, both being capable of blocking shots, in total contributing to a higher cover effectiveness.
 
  
However, if you can get to the point where you're almost firing horizontally at the raiders, then cover becomes nearly ineffective at protecting the raider, allowing many more shots to connect. This often requires you get out of your own cover, so it's not recommended unless you can find suitable cover nearby. <br>
+
Choosing to play on an extremely hot or cold map, such as in a sea ice biome near the poles, seals the fate of all raiders foolhardy enough to come.
For skilled medium-long range shooters it's best to shoot from a great angle to hit them from the sides. <br>
 
However for not-so-good or short ranged shooters it's better to directly fire at them instead as the extra distance will make it harder to land hits, or cause the raider to exit firing range.
 
  
<gallery widths="400px" heights="400px" class="center" mode="nolines">
+
<gallery widths="450px" heights="450px" class="center" mode="nolines">
File:Fire_cover_straight.png|Firing straight at a raider in cover; 1 stone chunk blocks 40%.
+
File:Siege flee from Toxic fallout and hypothermia.png|'''Siege flees from Toxic fallout and hypothermia.'''
File:Fire_cover_angled1.png|Firing at an angle; 2 stone chunks block 48% total.
+
File:Siege flee from Toxic fallout and hypothermia 2.png|'''Free prisoners in bulk.'''
 
</gallery>
 
</gallery>
<gallery widths="300px" heights="300px" class="center" mode="nolines">
+
 
File:Fire_cover_angled2.png|Firing at a greater angle; 2 stone chunks block 37% total.
+
= Humanoid assaults =
File:Fire_cover_angled3.png|Firing almost horizontally; 1 granite chunk blocks 8% only.
+
== Raiders ==
 +
"Raiders" come in a wide variety of sub-types, and with a surprising variety of tactics. But they all need to be explained the error of their ways...
 +
 
 +
=== Behavior ===
 +
 
 +
[[Raider]]s will attack randomly chosen constructed objects, colonists and colony [[animals]]. They will not attack natural rock walls (except for sappers), non-hostile wild animals or unpowered [[turrets]]. They will attack [[prisoner]]s if they are captured from their enemy factions.
 +
 
 +
They usually set fire to crops in [[growing zone]]s, [[power]] generators, [[power conduit]]s, and other [[production]] buildings. They will melee attack furniture, doors and walls. They will also use thrown explosives on structures, and some use [[EMP grenades]] to stun your turrets.
 +
 
 +
Raiders will prioritize firing on [[colonists]] or [[turrets]] that are actively engaging in the fight, but will otherwise attack random objects.
 +
 
 +
If humanlike non-mechanoid raiders are unable to defeat your colony in time, they may give up. Normal raiders will give up between {{ticks|26000}} to {{ticks|38000}} after the raid begins, while sappers will give up between {{ticks|33000}} to {{ticks|38000}} after they begin the attack.
 +
 
 +
=== Preparation ===
 +
 
 +
Humanlike raiders will sometimes start by standing around in a group where they spawned and will continue this until they lose a certain amount of raiders or they hit a certain preparation time limit, at which point they begin the assault. When a colonist is close to the raiders they will attack the colonist.
 +
 
 +
=== Equipment ===
 +
Raiders spawn with randomized equipment determined by their "pawn kind". While the budget for "purchasing" each individual of the different pawn kind is determined by the [[storyteller]] and the current [[raid points]] value, the equipment itself is decided by the weapon and clothing budgets and type restrictions of the pawn kind. More information on the pawn kinds can be seen in the Pawns sections on each [[faction]]s' page.
 +
 
 +
==== Apparel ====
 +
[[Raiders|Pirates]] can range from only wearing a tattered pair of [[pants]] to [[flak vest]]s to full sets of [[marine armor]]. [[Raider#Mercenaries|Mercenary slashers]] will always come in [[shield belt]]s and only they do so.
 +
 
 +
[[Tribals]] always come in [[tribalwear]], with some in [[war mask]]s or [[veil]]s. Some later game come with [[plate armor]] as well.
 +
 
 +
In cold environments, both will come in wearing [[parka]]s or [[tuque]]s, protecting them from temperatures of around -40 to -50°C, sometimes up to -110°C if they wear wool parkas. They don't usually come in wearing [[duster]]s or [[cowboy hat]]s in hot areas, making them vulnerable to the heat.
 +
 
 +
They tend to wear leather, [[cloth]] or [[synthread]] clothes, which don't provide good protection, and less commonly the more protective [[devilstrand]] or [[hyperweave]].
 +
 
 +
While mid-late game pirates usually come with normal quality flak and marine armor providing around 100% sharp armor, with quality apparel you can push yours to have more than 130%, even without masterworks or legendaries, giving you the upper hand.
 +
 
 +
==== Weapons ====
 +
For most factions, skills are assigned at random, meaning that raiders are not always given weapon appropriate for their skills; skilled shooters can be randomly equipped with melee weapons and melee pawns equipped with guns. So if you have your colonists equip weapons according to their skills, you already have an advantage over many enemies. Unlike the other factions, the [[Empire]]{{RoyaltyIcon}} will ''ensure'' that its soldiers have skills appropriate for their issued weapons.
 +
 
 +
[[Tribals]] usually come equipped with primitive weapons of random quality, either melee weapons or ranged weapons limited to bows and [[pila]]. Melee weapons are not to be underestimated however, as blunt armor is often lacking and both [[longsword]]s and [[spear]]s are relatively common and have respectable {{AP}}.
 +
 
 +
[[Pirates]] and [[outlanders]] can spawn with most weapons in the game, up to and including dangerous [[doomsday rocket launcher]]s.
 +
 
 +
However, some classes of raider always come with the same weapon or same category of weapon. For example, [[Raider#Mercenary_sniper|mercenary snipers]] always use [[sniper rifle]]s, [[Raider#Mercenary_grenadiers|grenadiers]] always wield either [[frag grenades]] or [[molotov cocktails]], and tribal archers of all types always use [[neolithic]] ranged weaponry.
 +
 
 +
==== Drugs ====
 +
 
 +
Pirates or Outlanders may utilize some form of combat-enhancing drug, namely [[go-juice]], [[yayo]] and [[luciferium]]. They will usually start off addicted to them, and will carry some in their inventory which is dropped upon death. They may also use multiple drugs, disregarding the risk of overdose.
 +
 
 +
These can reduce the amount of the pain received, making the raider last longer in battle before going down. Increased movement speed also allow raiders to get into position earlier, and brawlers to harass your defenders more easily.
 +
 
 +
*[[Go-juice]] is an excellent combat drug that makes the raider much more efficient in battle. It eliminates 90% of pain, gives a 30% movement speed buff, and a 10% consciousness buff for more accuracy. The raider is almost guaranteed to fight until death, or the rarer case of incapacitation through a shattered spine, severe brain damage or removal of both legs.
 +
**It's almost always more worth it to use body part-destroying weapons such as the [[Sniper rifle]] to kill them, as Go-juice does not reduce the actual damage they take.
 +
*[[Yayo]] grants a 15% buff to speed and eliminates half of pain received. Enemies under the effect of yayo are more durable against damage not concentrated on a vital body part
 +
**It will take more hits to down them, and more likely the raider dies first due to lethal damage, but is still possible.
 +
*[[Luciferium]] grants a wide range of buffs to the user, from increased organ function, to slight movement speed and consciousness buffs, to reduced pain.
 +
**It's more troublesome to capture addicted raiders since you'll need to regularly feed them luciferium to sustain their lives, which is very expensive and hard to come by -- it's usually more worthwhile to just strip and finish them on the spot.
 +
**Although it is possible to farm this drug by addicting raiders to it and release them, the next time they come they will bring some with them.
 +
 
 +
 
 +
 
 +
=== Sieges ===
 +
 
 +
During a [[Raider#Siege|siege]], raiders go to a location outside your base, receive materials via drop pod and will proceed to build a simple mortar camp. The mortar camp will generally have 2 mortars and sandbags as cover. The sandbags need not cover the mortars, nor will they necessarily face your base.
 +
 
 +
<gallery widths="450px" heights="450px" class="center" mode="nolines">
 +
File:Siege_base_construct.png|Siege camp under construction.
 +
File:Siege_base_finished.png|Finished siege camp. Note that sieges always come with 2 mortars.
 
</gallery>
 
</gallery>
  
=== Flanking ===
+
When faced with a siege, there are a few strategies you can use.
 +
 
 +
In most cases it's better to attack the siege camp as the raiders will continuously siege the colony even if you're in hiding, and most likely you will eventually need to face off against the raiders yourself.
 +
 
 +
==== Camp assault ====
 +
 
 +
If you assault their camp, one possibility is sniping the raiders, prompting them to assault your colony directly instead of continuing their siege once you down several of them. Defeating them early enough will result in most of their items remaining intact, which you can take for yourself. <br>
 +
Another alternative is to snipe the mortars, hoping an explosion will take out many raiders, but keep in mind that for those you will need to either send someone dangerously close to enemy fire, or draw all attention to one side to allow flankers to snipe and detonate them.
 +
 
 +
Unlike most defensive situations, this time they will have the advantage of good cover on their side. You will have to find suitable cover, such as rock chunks, which you can fire from.
  
To flank enemies, have defenders approach the attackers from the sides or the back instead of concentrating fire on the front.
+
Sniping [[mortar]]s under construction, when they have much lower health, is effective at wasting the enemy's resources.
  
Enemy ranged units often stay in the same spot when engaging your colonists, and they tend to have effective cover facing one direction only, making them vulnerable to flanking. Flanking enemy ranged units can distract them and cause them to lose their cover advantage with attacks coming from multiple sides. Rounding up any survivors fleeing after the attack also becomes easier. However, this also makes you lose the advantage of having high-quality cover such as sandbags on your side.
+
They are vulnerable to flanking if they haven't finished their sandbags or left a side uncovered. However, once all cover is completed, flanking is less of an effective solution.
  
This works best against entrenched ranged enemies attacking you from one side. They should be occupied with attacking frontal targets so you can creep up to them to unload lead on them from another angle.
+
==== Early interception ====
  
==== Surrounding ====
+
The best time to attack them is when they've just started building their camp. At this time their resources would have arrived.
  
If you have enough soldiers and suitable cover you can surround them completely, so they will not be able to escape. Firing from all sides also makes cover ineffective at protecting the raiders, while still allowing you to enjoy the benefit of partial cover if you can find it.
+
Attacking them at this time forces them to use rock chunks just like you do, instead of having the superior sandbags on their side. Their mortars won't be ready as well.
  
=== Shield tanking ===
+
'''Attack only when their resources have arrived''', otherwise they will flee and not send any resources, which you could've stolen had you attacked later.
This tactic simply requires you put your shielded colonists before your static gunners to soak up some gunfire.
 
  
In current versions shielded colonists can also be used for distraction, but this is not the case in Alpha 17. When put close enough, they can still be used as a bullet sponge though.
+
==== Hit-and-run ====
  
As with any tactic that involves putting a colonist as bait/ meat shields, this poses a great risk to colonists' lives. If the colonists' shields are downed, you will have to get them to retreat behind cover until their shields come back online, otherwise your colonist will be exposed to ruthless gunfire.
+
An effective tactic to lure sieging raiders out is to conduct hit-and-run attacks against them. Taking down someone usually causes them to give up on sieges and directly attack, making them lose their cover advantage.
  
=== Melee Rush ===
+
==== Countering with mortars ====
Melee rushing is the tactic of sending your melee attackers to engage hostiles all at once, rather than focusing on shooting them down. Ranged attackers shooting behind cover from a distance could be a pain to deal with for your own ranged forces, while melee attackers may get close enough to deal heavy damage to the ranged defenders.
 
  
It's best to equip your melee colonists with [[personal shield]]s to protect against heavy fire and distract the ranged attackers. Melee attackers without the protection of shields are highly vulnerable to gunfire, even if heavily armored. Before battle, hide your melee attackers so that they remain hidden until all enemy melee attackers are engaged with either the walls or your ranged, or put them in line with/in front of your gunners for quick deployment and damage absorption.
+
If you have your own mortars, you can use them to fire back at the raiders. The raiders will stay put to defend the camp, making them easy targets for mortar strikes. It's best to wait for the raiders to arrive at their siege encampment location so leading the target isn't required.
  
Melee rushes can work alone, especially with quality equipment; well-equipped melee rushes can hold off an attack and cause raiders to flee despite being slightly outnumbered. They can also attract a great deal of friendly fire from the pirates, as they try to shoot down your brawlers, hitting their allies in the process.
+
[[High-explosive shell]]s deal heavy damage to tight groups of raiders if they hit, ignoring all cover but solid walls in the process. A tight volley can devastate mortar camps, forcing them to either attack or flee outright.  Waiting for their supplies to be dropped gives you the possibility of causing their own mortar shells to explode on them causing significant additional damage.
  
If you aren't afraid of friendly fire, it can be combined with a firing squad from a distance for devastating effects. The brawlers cause chaos within the raiding party while the firing squad lays fire to destroy them while the raiders are trying to cope with your brawlers.
+
[[Incendiary shell]]s are an effective way of distracting sieges as the raiders will be preoccupied with extinguishing the resultant flames. 2 mortars are usually enough to keep them from doing any activity other than firefighting, unless it is raining or there are no flammables nearby. This deals little damage to them, however.
 +
 
 +
[[EMP shell]]s can stun the mortars, preventing them from firing. It is perhaps better used as a support weapon while your defenders assault the camps, to reduce the damage done to your base.
  
Against all-melee charges, your own melee rush is a good coping strategy, though be prepared to see someone downed or killed in the chaos.
+
==== Sneak attack ====
  
====Ghost Town====
+
If you don't have the strength to attack directly, you can wait for them to sleep at night, then use the opportunity to set your colonists into position for a sneak attack.  
Stick all your melee colonists in the building closest to the raider path. When any enemy draws close, pop out on them, swarming the 1-2 biggest or closest threats first.
 
  
Pros:
+
Once someone receives an injury, everybody will wake up, so be sure to have everything in place.
*Nullifies range advantages and most of the risk from sitting behind sandbags.
 
*Most enemies will bring either low tech melee weapons like clubs, or use guns. Once you get a smithy you can outdamage both of these with [[longsword]]s.
 
*No concerns about friendly fire
 
*Enemies tend to split up once they reach your settlement allowing you to divide and conquer.
 
*No special prep required, just pick any building in the enemies path.
 
  
Cons:
+
# Get within range and throw a coordinated barrage of [[frag grenades]] at the enemy, blowing the defenseless raiders to bits.
*Late-game groups of enemies and manhunter packs can overpower your melee fighters
+
# Go very close (no more than 3 tiles) then unload your guns on the exposed raiders. Nearly every bullet will connect, dealing heavy amounts of damage upfront.
*Needs a moderate population of melee fighters to work
+
# 1 well-aimed [[doomsday rocket launcher]] can end the siege easily. While also effective at day, it is much safer to approach at night, and the raiders will also be more tightly packed.
*Sappers can destroy structures, making this strategy ineffective
+
# Send brawlers straight in, beating up dangerous enemies like rocketeers first.
 +
# Steal their supplies and wait for them to send more. Free food and mortar shells!
 +
# Scatter chemfuel canisters around the camp, pick up shells and survival meals. Retreat. Load one incendiary round into your mortar. Do one shoot, enjoy the popcorn.
 +
# Burn the enemy with fire, a task made much easier while they are off-guard. This will eventually force them out to attack after suffering from heavy losses.
 +
#* Lighting the mortars on fire allows them to be destroyed with ease.
 +
#* Surround the camp with fire. Upon waking up, they will put forward their futile efforts in controlling the raging sea of fire around them, eventually giving up and attacking.
  
=== Mortar Tactics ===
+
==== Deep tunneling ====
  
A mortar attack on siege and raids can be effective while the attackers are still preparing. It's fun and most times raiders would flee before begin their assault due to huge losses of men during preparation.
+
Mortars cannot hit anything that is under an overhead mountain. This makes deep mining a effective defensive strategy against heavy bombardment. If you don't build your base into a mountain, you may at least consider digging out at least one panic room for non-combatants to hide within from the shells while others head out for the assault.
  
It also allows you to effectively utilize your colonists who are poor at combat, as mortar accuracy is unaffected by colonist skill, however colonists incapable of violence will outright refuse to man a mortar.
+
==== Firefoam shell jamming ====
  
Always to remember to manually unassign colonists from mortars; if you don't, they will continue standing there until they eventually collapse from exhaustion, starvation, or have a mental break.
+
[[File:Firefoam shell jamming.png|500px|thumb|right|Enemy mortar filled with a firefoam shell, demonstrated by reddit user u/xenoxaos.]]
  
An important point to remember is that while your colonists are better at dealing with single or spread-out enemies, mortars are designed for heavily grouped enemies. If you diffuse your enemies, the mortars will not be able to hit the enemies easily.
+
An interesting way to nullify the threat of a mortar attack is to launch a transport pod filled with firefoam shells to a location closer to the mortars than the shells they brought with them. When the shells arrive, the enemy will load them shells into the mortar instead. This means that the damage to your base will be much reduced, as firefoam shells do little damage beyond damaging roofs.
  
==== Mortar emplacements ====
+
{{clear}}
Mortars need to be placed outdoors, so have [[equipment rack]]s to hold the mortar shells. Set them to accept mortar shells only otherwise your colonists will haul random weapons and apparel to the racks.
 
  
Mortars also explode when damaged. Most of the time this isn't an issue, but if you're facing against a siege, a mortar shell that scores a hit on your mortars can cause a chain reaction to rip apart your mortars. Enemies that come close to the mortars can also wreck havoc on the helpless mortar crew.
+
=== Shielded melee charges ===
  
Mortars can't fire at anyone within 30 tiles of it, and need to be well-protected against intruders, so you will need to place the mortars deep inside your base for maximum coverage. It's best that you have your colonists standing guard outside, but if you need to you can always have a few pillboxes to defend the mortar base.
+
[[File:Melee_charge_edge.png|240px|thumb|right|Full melee charge at the edge of the map, with everyone shielded and equipped with melee weapons.]]
  
==== Explosive mortar battery ====
+
Pirates or Outlanders can come with all-melee charges, with most enemies wearing [[shield belt]]s. This can prove a threat to ranged-reliant defenses as they charge towards the colonists directly with their shield belts blocking large amounts of damage. <br>
You can build a mortar battery to bombard incoming enemies.
+
While they are vulnerable when their shields are down, many can still reach your colonists and engage them in melee combat.
  
Due to inaccuracy, it takes at least 4 mortars to be effective, and around 8 mortars will be enough for most attacks. If you really want to overpower the enemy, 12-20 is good enough for a dense hail of mortar shells for dealing with endgame-level swarms. Any more is generally overkill unless you're facing up some really slow and tough enemies (such as centipedes).
+
==== Melee blocking ====
  
If you are short on manpower, you can automatically assign a colonist to fire 1 shot from each mortar. However mortars will not cool down unless there is someone manning it.
+
The '''[[#Melee blocking|Melee blocking]]''' tactic is especially useful here; for better effectiveness, open multiple chokepoints to spread out enemies and keep them busy trying to squeeze in, otherwise they will get bored and wander off to attack other things.
  
Note that [[Armor#Personal_shield|personal shields]] can easily mitigate the damage from the mortars, so be careful when facing enemies equipped with these.
+
Shields don't stand a chance against concentrated fire poured down a narrow entrance.  Using [[Grenades|EMP Grenades]] or [[EMP launcher|EMP Launchers]] can entirely disable the enemy shields, making mowing them down much easier, but ensure you don't accidentally short out the shields of your own melee blockers.  It's best to order the grenadier or launcher wielder to attack a specific ground point rather than letting them freely select their target, as they may try to grenade a target right next to your own melee blockers.  Both grenades and launchers can deviate by up to 1 tile in any direction from the targeted square, so take that into account when selecting your aiming point.
  
==== Incendiary mortars ====
+
{{clear}}
Incendiary mortars deal low damage, penetrate shields and set areas on fire. The fire can cause disruption among the enemy ranks, as they frantically run trying to put out flames.
 
  
Be careful with incendiary mortars as the fires can spread across wide areas causing extensive collateral damage.
+
=== Sniper party ===
  
==== EMP mortars ====
+
Raiders can come using only sniper rifles, giving them a very long range but low overall damage.
EMP mortars are more of a niche weapon. It doesn't deal any physical damage whatsoever, but are useful against some specific enemies. It's recommended that you have around 4 in each base.
 
  
EMP mortars are a must-have in case of a mechanoid raid. They stun them for a long time, allowing your colonists to close in on them and concentrate fire, or even engage in melee safely.
+
The danger comes in that if you engage them conventionally, you may need to exit your quality cover, removing your cover advantage.
  
They also excel at dealing with shields, instantly downing many at once with its large blast radius and high EMP damage.
+
Sniping them back is not recommended unless you have a surplus of skilled snipers and cover.
  
== Mechanoids ==
+
==== Luring in ====
  
Mechanoids are only come in 2 types, Scythers and Centipedes. They have much differing stats and weapons, meaning different tactics may be used.
+
Instead of engaging them on the frontline, you can keep everyone out of sight, then rush out only once they get close to your base, negating their range advantage.
  
In most raids where they come/ drop in at the edges, the Scythers will outrun the Centipedes by a great margin, giving plenty of time to deal with them before the centipedes.
+
==== Killbox ====
  
Unlike humanlike raiders, they do not flee, meaning that all of them have to be taken out to neutralize the threat.
+
A well-designed killbox can entirely negate any advantage that sniper parties field.  Critical to that is ensuring that line of sight is entirely blocked for incoming attackers until they are in range of your own forces, preventing them from being able to take cover once inside the killbox, and using sandbags to force them to walk (slowly) while already under concentrated fire without being able to return fire.
  
They are highly vulnerable to EMP damage, as it will stun them, rending them completely unable to fight back. This can open a window of opportunity where you safely engage it at close range, or even with melee.
+
=== Heavy explosives assault ===
  
=== Scythers ===
+
Enemies may come in mainly equipped with area damage weapons, such as rocket launchers, grenades and miniguns. This can cause serious damage to your base, your colonists, and the raiders themselves.
  
Scythers are capable of long-range sniping attacks, and are extremely deadly with melee. If fighting it from a distance, cover along with long-ranged weapons such as [[sniper rifle]]s or [[survival rifle]]s are vital.
+
The main danger, as always, is from the rockets. The ideal method is to [[#Distracting rockets|distract]] them from the main defending force, not only reducing damage taken by friendly forces, but also increasing friendly fire the enemy takes. The fact that so many of the raiders have rocket launchers means that friendly fire can be so serious that the raiders will decide to retreat to cut losses by friendly fire alone.
  
They never use cover or actively engage in melee.
+
Due to the wide use of explosives, cover is less useful; you would benefit more from flexibility in positioning rather than protection from cover. Space out your defenders, preferably far from your base structures, while giving them enough space to move around to evade attacks.
  
Despite its high melee damage, sometimes melee fighting it may be better, as long as you have good armor and weapons. Be prepared to lose a limb or two.
+
==== Distraction ====
  
=== Centipedes ===
+
If you have many tamed animals, you can zone them near the raiders, who will be distracted to fire at the animals with rockets. Enemies are much more likely to receive friendly fire when firing towards your animals right next to them.
  
Centipedes, on the other hand, specialize in crowd control and area denial; the [[Minigun]] and [[Heavy charge blaster]] can annihilate groups of colonists, while the [[Inferno cannon]] sets your colonists ablaze and burns down your base if not careful. They are incredibly durable, sporting thick armor and high health, and can take many hits before they can be downed.
+
==== Grenadiers ====
  
<!-- maybe not in a17 -->
+
Besides rocketeers, many of the enemies will also be grenadiers, which are short-ranged and are thus vulnerable to fire from a distance. Once the rockets have been taken care of, you can shoot them down with concentrated fire quite easily. Make sure to dodge the grenades if they do close in.
Centipedes wielding the Minigun and Heavy Charge Baster can be cheesed simply by making a lone colonist, preferably with a personal shield, stand in front of your other colonists. The centipede will target that colonist, but be unable to hit it due to the forced miss radii. Watch out for friendly fire. <br>
 
The Inferno cannon is not as destructive towards your colonists, but is annoying to deal with. Keep watch on your colonists at all times, and remember to send them back into cover when needed. As a precaution, build your base out of non-flammable materials to prevent large-scale fires erupting all over your colony.
 
  
There isn't much choice when dealing with a centipede except to shoot it with your guns, despite their high resistance against sharp damage. One good
+
==== All-in melee charge ====
thing is that its large size makes it easier to hit with ranged. <br>
 
Engaging it in melee is not recommended due to its armor, high health and heavy damage. A centipede deals enough damage per hit to blow off a hand or foot, and if it has a minigun or heavy charge blaster it can eviscerate your colonist at point-blank before you can get the victim to escape.
 
  
Its slow speed and relatively poor blunt armor makes it an excellent target for explosive mortars. Often you can pull off a few blows before it even reaches firing range, severely weakening it.
+
You can go hardcore and send in all your shielded brawlers to go straight at the enemy rocketeers. Gunners should stay out of range of rockets until all rockets launchers have been used.
  
=== Crashed ships ===
+
This is especially effective when '''they come in to chase a refugee''', leaving you enough time to position your brawlers deep into the enemy. <br>
Sometimes a crashed ship part will land on the map. They can have harmful effects such as reducing colonists' mood or killing any nearby plants. You cannot deconstruct the part, so you will need to shoot/ hit it until it is destroyed. When you damage the part, mechanoids will swarm out to 'defend' the ship.
+
At any rate, expect losses this way due to the concentrated explosions.
  
As the mechanoids don't come out until you damage the ship, you have plenty of time to prepare. However, you don't have infinite time, either- poison ships can spread toxic material across the map, killing all plants in reach (wild or not), causing serious losses to pastures or crops, and psychic ships are able to project powerful psychic waves driving animals mad and sending colonists' mood plummeting.
+
=== Base flank ===
  
==== Constructing around the ship part ====
+
Besides sending one large attack party, enemies can also split up their forces and attack your base from multiple sides.
  
[[File:Crashed_ship_part_ready.png|375px|thumb|right|Crashed ship part ready for demolition.]]
+
To adequately defend against this sort of attack, you may need to split up your own defenders and fight several battles at once, thus increasing the difficulty of managing the battle.
  
If you plan on shooting them, build sandbags around the ship part to block bullets.
+
Each of the individual groups will flee on their accord.
  
You should build EMP mortars to stun the mechanoids, making them helpless hunks of metal. As they tend to spawn very tightly packed, the EMP mortar blasts are extremely effective against them, being able to stun a large number at once.
+
==== Divide and conquer ====
  
Building IED traps right next to the ship also works really well as the mechanoids will instantly trigger the traps upon spawning. This can cause heavy damage to the mechanoids, especially the scythers who can't take more than a few explosions. <br>
+
If the enemy decides to prepare before attacking, you can afford to send out a larger attack party to eliminate the groups one-by-one.
Don't put too many otherwise you will waste resources and destroy the mechanoid corpses which can be disassembled for resources instead. It also makes it much less likely to obtain scyther blades as you have a higher chance to kill the scyther.
 
  
==== Luring to base ====
+
=== [[Sappers]] ===
If you want to use existing defenses, you should have a kiting colonist shoot the ship once with long-ranged weaponry, then instantly make a break for it back to your base. You can usually treat it as a normal mechanoid raid against your base, especially if the ship part is far enough away.
 
  
After the mechanoids are dealt with, simply draft a few leisurely fighters to use the ship as target practice. No more mechanoids will spawn afterwards.
+
Sappers will mine and blast their way through any obstacles, such as natural or constructed walls, though avoiding high-health ore veins. They will also try to circumvent your defenses to attack from another direction. Their goal is to reach one of your bedrooms or barracks, where they will begin to wreak havoc.
  
== Manhunter packs ==
+
In an open base, sappers can usually be treated as a weaker-than-usual bunch of raiders. However, they are a great threat to turret-reliant, mountain or walled bases, including bases with killboxes.
  
Animals in a manhunter pack can arrive in massive numbers, or include a few large but deadly animals.
+
Their grenadiers and miners deal heavy damage to structures; even the toughest [[plasteel]] walls will not stop them for long. They will also persistently try to tunnel into your base, continuing even if their digger is killed or they are under attack.
  
They are not sophisticated in their attacks; they come in a tight pack, will not actively attack structures without being provoked, and are only capable of using melee (though some can explode upon death for destructive results).
+
==== Turret funneling ====
  
While some animals can be outrun, they can still cause great disruption in outdoor activities as your colonists constantly run and cower to avoid the incoming horde.
+
It is possible to funnel sappers with unpowered turrets, since sappers will avoid entering turret radius. Note that this doesn't appear to work to funnel sappers into killboxes.
  
=== Animals ===
+
==== Early interception ====
[[Wild boar|Boar]]s and [[Warg]]s can be very problematic to deal with even with moderately-well defended colonies because they can easily outrun humans, deal lots of damage, and they all typically arrive in very large numbers meaning they can easily overwhelm a colony.
 
  
[[Boomalope]]s are arguably easier to deal with in larger numbers as they are slow and chain reactions can easily happen because of their large 3-square blast radius, meaning that even packs excess of 40 boomalopes can trivially be dealt with by half a dozen of people armed with automatic weapons and shooting from a distance. They pack quite a punch in melee; combined with their death explosion, this means you should never engage them in melee except when finishing off lone boomalopes.
+
With enough manpower, you can choose to intercept them while they're tunneling into your base. They tend not to use cover when doing so, so you can catch them by surprise. Once your defenders intercept them, they will turn to engage you.
<br>
 
[[Boomrat]]s, on the other hand, are harder to deal with; they outrun the average colonist, their small blast radius means it's harder for chain reactions to start (though still possible), and they are smaller and harder to hit.  
 
  
[[Elephant]]s and [[Rhinoceros|Rhino]]s often come in smaller groups when compared the other animals. While in total they deal less damage, they make up for it with their much higher health. They can be outran, but once they catch up they can tear your unfortunate colonists apart.
+
==== Rocket counterattack ====
  
[[Muffalo]]s are quite trivial to deal with; they are slow and easy to hit, making them not much of a threat, and a prime target for kiting strategies. They can be considered easy meat for your colony, just as long as you don't let them come close enough.
+
The [[doomsday rocket launcher]] is your best bet against sappers, if they aren't a full melee charge. Since they are bunched closely together, a single well-placed rocket can blow up most of the attacking party, causing the rest to flee in panic. If they have rocket launchers, they may drop them on death, so you may actually end up with more rockets than you started with.
  
=== Optimal Weapons ===
+
If you are the one using the rockets, you have the advantage of being able to fire first. Aim it at a spot where the enemy is likely to be bunched up. If you're quick you can defeat the enemy before they can even fire back at you, ensuring victory.
  
Guns with high damage output such as the [[LMG]], [[Heavy SMG]], [[Pump shotgun|Pump Shotgun]] and [[Charge Rifle]] are good at taking down packs at close to medium range. <br>
+
Rocketeers should be behind your best cover so they can survive long enough to fire. Your other colonists should be closer to the enemy to draw fire, but out of the rocket's path lest it hits your colonists instead.
The [[Survival Rifle]], [[Sniper Rifle]] and marginally the [[Assault Rifle]] work better at longer ranges.
 
  
The [[Minigun]] is an excellent weapon against manhunter packs. At a distance, it can destroy the tightly packed groups of incoming animals, while at point-blank, it can easily rip large animals to shreds, often with just a single barrage of bullets.
+
==== Mountain bases ====
  
Longswords are a must-have if you are hardcore enough to try and engage the animals in melee.
+
If you're in a mountain base you can draft a few melee pawns to wait at the entrance, as well as a few ranged pawns facing the entrance to fire down the tunnel. When they do break in you will already have prepared to face the raiders and can pour a stream of lead right into their face or cut them into pieces.
  
Rocket launchers are a good one-use solution to manhunter packs, wiping out large crowds at once. Be careful when using them near your base though.
+
In a mountain base, since they take longer to mine through the rock, you may try placing an [[IED trap]] right behind the wall that a sapper is trying to tunnel through, to catch them by surprise with an explosive blast. This is especially effective if it's placed right on the other side of a loose [[rock chunk]] (easily found in tunnels), which will slow down any enemies stepping over it enough that they won't be able to retreat in time.
  
Explosive weapons are best used only when large packs are incoming. Mortars aren't very useful as animals generally run faster than the animals can hit, but if you have a kiting colonist or trained animals distracting them and you manually aim your mortars you can still achieve great effectiveness.
+
==== Aftermath ====
  
=== Kiting ===
+
Remember to cover up any tunnels or gaps in your defenses as they open up an opportunity for raiders to come straight into your base. You may fortify it and turn it into a booby-trapped chokepoint to catch unsuspecting raiders seeking direct entry.
Being unsophisticated, they can be lured easily.
 
  
If you have good shooters that are fast (moving >140%; 2 bionic legs, or 1 bionic leg + go-juice, or whatever mods you're using), you can easily kite the faster animals. <br>
+
=== Drop pod attacks ===
The larger animals are much slower and any colonist that has normal Moving will do fine against them. <br>
 
This is best combined with a long-range firing squad and turrets laying fire from a distance while they are chasing the colonist.
 
  
=== Animals vs Animals ===
+
Sometimes pirates or mechanoids will come in drop pods. If they land at the edges, they can be treated as a normal raid party, unless you have expanded to the edges, in which they will land inside your base. <br>
One good way to fight off mad animals is with... more animals! Just draft anyone with animals assigned, set the animals to Release, and set them out. Your colonists can watch safely from a distance, or take a potshot or two while watching the animals tear each other apart. Just remember to have someone mop up the bloodstains, haul the corpses of the fallen as well as finish off any survivors.
+
To defend against this, have a second line of defenses inside your base so you can deny the drop-podders easy entry into your base.
  
=== Bleeding them out ===
+
The main danger comes in landing right in the center of your base. Capable enemies not using alternative strategies such as sieges or sappers have a 10% chance of doing so.
Another strategy is to draft a colonist, place it in a door to shoot a maddened animal until it starts to bleed, then move the colonist back to safety and wait until the animal dies from blood loss, be careful thought since this will draw the attention of surrounding maddened animals making them attack the door where the colonist came from so be ready to repair it immediately.
 
  
If you hit their legs they will be crippled making it easier to outrun.
+
Once they choose to land there, things will get ugly. By landing in the middle, they bypass most of your conventional defenses, and you can't use your cover advantage against them. They will also break through constructed roofs on their way down, landing right inside rooms and buildings. This can put not only your colonists, but your stockpiles in grave danger, as well, especially if they land near your volatile [[mortar shell]]s or [[chemfuel]] stores, or [[Battery|batteries]].  
  
This method is slow and requires time before blood loss kills the animals. It's best that you use it to kill large animals, or soften them before moving in to finish them. The lowered consciousness from blood loss can help reduce damage taken by making the animal miss its blows more often.
+
Fortunately for you, they have a short delay ({{ticks|520}}to be exact) before they open and all hell breaks loose. They also come in smaller numbers than regular raids.
  
=== Turret Distraction ===
+
Enemies in drop pods cannot land in tiles beneath an Overhead mountain, so tunneling deep underground can make safe rooms.
While turrets aren't good at fighting manhunter packs, they can distract them for your colonists, giving your colonists more time to shoot them while they are occupied by the turret.
 
  
They also explode when destroyed, potentially taking out a sizable group of animals. They won't run away from an exploding turret; only when the turret is destroyed will they switch to another target.
+
==== Strategy ====
  
However, given the price of turrets, this method isn't worth it except in desperate conditions, or you happen to forget to turn off your turrets.
+
Once you see them land, you should immediately decide what strategy will you use: attack immediately or wait and let them break furniture or steal things. In case of immediate attack, draft any nearby armed colonists to the site, whether they are your designated soldiers or not. Let them hold off the attackers for a while before your soldiers arrive to help. You have less than 9 seconds before they open, not enough for a soldier to get halfway across the map to help.
  
=== Waiting it out ===
+
Any non-combatants should immediately be evacuated. They may still stay close to help in rescue efforts, pulling out any downed colonists. Make sure it's safe to rescue them- as in rescuers not walking through the crossfire and back again to get a colonist to the hospital. You may need to forbid doors to prevent them from walking through the firefight into a hospital. Melee is useful against these attacks, for you can immediately start beating up the enemy as soon as they exit the pods. They can also shut down dangerous enemies such as rocketeers.
Alternatively, if you have a perimeter wall or a superstructure base with decent food stocks, you can simply wait it out inside while they relentlessly swarm outside the walls. Some of them will exit manhunter mode once they fall asleep, and will act normally afterwards.
 
  
Remember not to let anyone outside unless your intent is to kill the animals.
+
If you decided to wait, draft your soldiers and put them near (but not close) to the drop area and wait. When raiders face no resistance, they will immediately start breaking furniture, put fire (sometimes turning the room they landed into gas chamber) and later will decide to steal some things (including furniture that can be moved), take it and flee. Let them do it, and when they take items and go, attack. While fleeing, they will not resist, making it much safer to kill all of them and return stolen back to the storage. Works best when raiders landed inside the locked room.
  
They will actively attack doors if a colonist hides behind them; as a precaution, build it out of a sturdier material such as [[plasteel]] so they don't get destroyed during a manhunter attack. They will give up after a while if the doors are not destroyed.
+
Like other raids, humanoid raiders will attempt to flee after receiving heavy losses; however, if they land inside enclosed areas of your base, they will be trapped, allowing your colonists to down and capture them at leisure; in their panic, they won't try to fight back, until you're well into beating them up.
  
=== Scavenging dead animals ===
+
==== Cover ====
Manhunter packs are a good source of [[meat]] for your colony, especially if you're low on food. If there are still maddened animals, wait until the other animals from the pack go to sleep or walk away far enough to haul the dead one(s), or get a fast colonist to try and haul the dead ones away.
 
  
== Infestations ==
+
You should use your furniture or wall corners as cover and fire from behind them. You can also have 2 colonists hiding behind each doorway for full cover. Toggle the doors to be held open, otherwise they can't fire. Be careful as enemies will also utilise cover as well; to combat this, attack from multiple angles or use melee fighters.
While infestations aren't much threat in open areas, they can be a serious hazard in mountain bases.
 
  
Insects are lightly armored, and exclusively use melee. This gives them some protection against attacks, but also makes them vulnerable from a distance. None of them run faster than a colonist so they can be outran or kited.
+
Spread out colonists so they don't take collateral damage, even if it may mean some will fire out of cover. Keep heavily armored colonists up front and lightly armored colonists at the back.
  
If you don't destroy infestations fast enough, they can reproduce giving rise to even more insects. This is especially true if you happen to have forgotten about a hive, which given time can build itself into a giant mega-hive.
+
Colonists with high construction skill can relocate furniture quickly; use this to your advantage by creating cover for yourself and removing it from enemies.
  
=== Spawning ===
+
If you have larger bases, you can build indoor defensive positions along crucial corridors, but take care not to let the enemy use them. Stone [[shelf|shelves]] are an option as they are durable, non-flammable and beauty-neutral.
They can spawn in most areas with an Overhead Mountain over them; if you're in an open base and don't want to deal with insects, you can simply build walls in those areas.
 
  
For mountain bases, however, things get get much harder; they can spawn in practically any room, right inside your base, causing mayhem as your colonists try to battle the insects.
+
==== Fire management ====
  
=== Fighting infestations ===
+
As most furniture is flammable, you will need to extinguish any fires if you want to prevent damage. One option is to reinstall and trigger a firefoam popper inside, which also fireproofs the room, preventing any further fires.
The enclosed nature of mountain bases gives colonists little distance to shoot from; thus, you may want some melee fighters to pair up with any ranged colonists.
 
  
Individual fighters will quickly get overwhelmed by the insects, so you shouldn't trickle your defensive forces in; rather, you should send them all at once to overpower the insects.
+
If you prioritize the defeat of the raiders over the loss of your property, and the walls of the room are fireproof, you can simply let fires burn, or even start some more, while you evacuate the room and shut the doors, cooking the raiders alive. Watch out for fire and heat spreading to nearby rooms, and put out fires immediately once the raiders are well done. <br>
 +
Not effective against mechanoids as they aren't affected by temperature and cannot be set on fire.
  
If you want your threat gone, you should destroy the hives before they reproduce, spawning more hives and insects.
+
==== Equipment ====
  
=== Using fire ===
+
High-DPS or melee weapons work best to deal with drop pod attacks. <br>
Fire is a horribly effective way to clear infestations during early-mid stage infestations.
+
Mid-range weapons are also good for clearing out larger rooms. <br>
  
If they spawn in an enclosed area with a door and plenty of flammables, all you need to do is toss a molotov or an [[incendiary launcher]] bolt into the room. The room will quickly catch fire, causing the temperature to quickly rise, roasting the insects in it along with the hives. <br>
+
Long-ranged weapons are less effective due to their low damage output and the confined nature of indoor spaces rendering their superior range unnecessary.
If there aren't flammables you can still keep shooting the hives. They can catch fire, along with the fuel puddles created on the ground.
 
  
As any items inside the room are likely to catch fire and be destroyed, it is not recommended to use in a place with many valuable buildings or your warehouses. Also be careful with the heat spreading to nearby rooms through walls.
+
Explosive, incendiary or area denial weapons are excellent at room-clearing, but are not recommended except in dire situations due to heavy collateral damage.
  
=== Explosives ===
+
=== Tribal raids ===
Rocket launchers can clear up infestations in no time. A single use [[Doomsday rocket launcher]] will deal massive damage over a large area, destroying the smaller insects, damaging the hives and softening up the tougher insects. Grenades work if you have the courage to get someone to go close-up to throw them; 1 blast can get several insects, and they are reusable.
+
 
 +
[[File:Tribal_raid.png|300px|thumb|right|Group of tribal fighters.]]
  
=== Late-stage infestations ===
+
Tribal raiders come with relatively poor equipment, instead relying on sheer numbers for power. Their neolithic weapons can dish out heavy damage despite their low technology level. They are also adept at combat, with many being acquainted to some combat skill or another. <br>
If you've accidentally left a hive or two behind or totally ignored an infestation, after a few seasons you will have a giant hive community sprawling. This is '''extremely''' hard to treat, especially if you're low on colonists.
 
  
If you're still on early to early midgame, it's generally recommended that you pack up and run. If not, however, you will have to deal with them slowly.
+
Different strategies may be required, compared to pirate or outlander raids.
  
Their slower speed makes kiting possible even to unmodified colonists. Draft a few ranged colonists to kite the insects, shooting from a distance to wear them down. You will need to constantly keep a distance when unloading fire on them. When most insects are taken down quickly destroy hives while you can. Draft every colonist possible to destroy the hives by shooting them, bashing them or setting them on fire.
+
==== Tribal fighters ====
  
Explosives are recommended as they can destroy the hives and hit the massive groups of insects easily. Mortars are useless against the hives inside the mountains, but they can be used to control the spread of the infestation to confine them to areas within the mountains.
+
They can take more of a beating compared to other poorly armored enemies as some of the clothing items they wear gives them increased endurance against pain, but when compared with other decently armored enemies they are easier to kill individually as their clothing doesn't provide much protection overall.
  
To deal with such a threat requires you partially ignore colonists' needs. Be careful as you risk mental breaks.
+
Their archers or hunters can fire their bows from a somewhat long distance, sometimes forcing you out of cover to fire your shorter ranged weapons at them.<br>
 +
Warriors or berserkers don't use shields (unlike their pirate counterpart, the mercenary slasher), making them vulnerable to gunfire.
  
=== Passive prevention ===
+
You should watch out for the pila wielded by heavy archers, as well as berserkers.
If you only have a few tiles of Overhead Mountain then it's best that you fill it up with walls to prevent any infestations from happening.
+
*Despite the short range and slow fire rate, pila are incredibly deadly if they land, capable of killing or incapacitating unprotected colonists with a lucky shot to the heart, spine or limbs.
 +
*Berserkers carry excellent melee weapons that dish out incredible amounts of damage once they get close.
  
Lighting decreases the chance of an infestation occurring in that area so you can light them up to make them less likely to spawn (though it can still happen).
+
==== Weapons ====
  
==== Baiting ====
+
You will need sufficient mid-long range firepower to take down tribal archers from a distance, for getting close to them in order to fire your guns is pretty much suicide. Long-ranged weapons beyond 32 tiles can effectively hit archers at maximum range, matching or outranging them.
You can mine out rooms a distance away from your colony to attract insects to nest there, instead of right in the middle of your base. For good measure, you can put some cheap furniture inside as well to further confuse the insects (and to light up the insects).
 
  
A well-lit base discourages insects from nesting, though it can still happen. If you bait insects to spawn elsewhere the chance of an infestation spawning inside is greatly reduced.
+
Close-mid ranged weapons with high stopping power are good for taking down tribespeople that come too close to your defenders, but they alone cannot defeat tribals effectively just by staying in static cover.
  
If you want the insect trap to automatically kill insects, put an [[IED incendiary trap]] inside the room, and fill it with flammables. Once an infestation spawns the insects will trigger the trap, lighting the flammables on fire and broiling the insects.
+
Crowd control helps greatly in defeating tribal raids.  
  
Alternatively, fill it with a few deadfall traps to weaken them before they strike your base, giving you the advantage. It also preserves the hives, which can be either good or bad.
+
*The [[Minigun]] is extremely effective as it can easily mow down the densely packed groups of tribal invaders.
 +
*All explosive weapons are devastating on tribals.
 +
**Rocket launchers deal heavy damage while being reasonably accurate.
 +
**[[High-explosive shell]]s can pulverize a sizable group of tribals at once if they manage to hit.
 +
**Grenades are less effective as you have to risk a colonist or two in order to get in range.
 +
*Incendiary weapons are good at getting pesky archers out of cover for your colonists to hit.
  
== Artifacts ==
+
=== Empire raids ===
These one-use items can be useful in turning the tide of a raid, provided you can use them correctly.
 
  
=== [[Psychic insanity lance]] ===
+
Added in the new [[Royalty DLC]], the Empire is capable of sending powerful troops to assault your base. Unlike Outlanders, Tribals, or Pirates, one major advantage they have is that their skills are matched with the weapon they use- melee Champions will actually be good at melee, while Troopers, Janissaries or Cataphracts all have excellent ranged performance.  
This artifact instantly drives a humanlike or animal berserk, causing them to attack any nearby pawns.
 
  
You can use this to cause great disruption within the enemy's ranks as enemies will switch targets to engage the berserk pawn, distracting them.
+
Cataphracts are among the most heavily-armored units in-game, with an outer layer of [[cataphract armor]] and an inner layer from an [[armorskin gland]]. However, their armor also slows them down significantly.
  
It can also be used to enrage animals from a distance, unleashing them upon the enemy attackers. Choose a tough animal with high damage output to make the most out of the lance.
+
This can, however, be turned to your advantage through the use of [[Psycasts]] introduced in the Royalty DLC. Using Berserk or Berserk Pulse on the most dangerous of the hostile army can cause them to turn their powerful weapons towards murdering (and being murdered by) their allies rather than your colonists.  Note that Berserk Pulse can affect pawns immediately on the other side of a wall by casting the ability on a tile adjacent to a wall, allowing the ability to function as a defense against sappers or groups moving through constrained areas (such as a narrow snaking corridor leading to your killbox).
  
While berserk pawns may not deal much damage on their own, the resulting fire directed in panic at the berserker can greatly weaken an incoming attack.
+
== Caravan ambushes ==
  
=== [[Psychic shock lance]] ===
+
Defensive battles don't always happen at base. Sometimes it may happen far away from it, striking one of your caravans, perhaps loaded with plenty of silver. Or maybe they creep to your traders and demand ransom, which you don't feel like paying. You always need to be prepared for ambushes when you send out caravans.
This artifact instantly downs a humanlike or animal, with a chance of causing brain damage.
 
  
Not as useful as a psychic insanity lance against raids, but can still be used to great effect, by downing an attacker that might cause huge damage such as a rocketeer.
+
=== Escort ===
  
It's also somewhat useful if you want to capture a specific raider with good stats, though you need to get him before the effect wears off and you risk brain damage which can ruin a previously good potential colonist.
+
In any cargo-carrying caravan, sending only 1-2 colonists is usually not advised except in very short-distance trips as they will not be able to fend off an ambush. In this case, have combat-capable escort members which can fight and carry items, as well as medics who will patch up your colonists after battles.
  
=== [[Psychic animal pulser]] ===
+
If you have lots of attack animals, you can also send just 1 skilled handler with the attack animals. They can swarm any attackers, and you can leave colonists back at base for work. Remember to take into account the animals' food needs; grazing animals work best for this reason.
This artifact instantly drives all animals, including your tamed ones, into a manhunter state.
 
  
In an animal-rich area such as a temperate forest or arid shrubland, nearly any humanlike/ mechanoid raid can quickly get devastated.
+
If you are not carrying much besides a lone colonist, leaving him to go alone is helpful as lone colonists are hard to detect, reducing both the likelihood and the power of ambushes. A single colonist with a pack animal trained to obedience should be able to fend off most attackers.
  
Before you even consider using this, you should be very careful; the animals will also turn on your colonists. You will need to keep the animals out, and your colonists in. Make sure you get all your tamed animals out first, restrict your colonists to indoors areas only, and have a stock of food handy. Once the animals fall asleep they will exit their rage.
+
=== Ambush site ===
  
== Defensive Construction ==
+
The ambush site is small, restricting the space where you can conduct your battle. This renders many tactics obsolete, such as long-ranged sniping or kiting. You will often have to face off the enemy in a direct gunfight or brawl.
The below shows ways you can build a base to repel attacks.
 
  
=== Perimeter Wall ===
+
Besides this, you can't escape the fight until it's over, leaving no choice but to fight back.
An effective but material-expensive way for defending bases, this simply requires erecting a wall surrounding your base. The wall can delay attackers, or gaps can be introduced to funnel raiders, giving your colonists the upper hand in dealing with raids.
 
  
Enemies equipped with most weapons will attempt to break down the wall using melee attacks, even though firing point-blank at it with practically any ranged weapon may destroy it faster. This greatly slows down progress, or even stop it entirely if you have enough repairmen. <br>
+
=== Cover and positioning ===
They also spread out greatly while doing so, giving your colonists a chance to destroy them one by one.
 
  
When they do break through, they will have essentially created a chokepoint for themselves, giving your colonists a chance to concentrate overwhelming fire on them while they get through. They can use the walls as cover, though, so be careful.
+
[[File:Ambush_fight.png|600px|thumb|right|Improvised defensive position against ambushes, making the best of what is there. Colonists behind walls will enjoy up to 75% full cover, while pirates will only receive 25% at most  from trees and such. Two brawlers are ready to execute a melee sortie, while another is ready to [[#Peeling|peel]] for the gunners. Combined with good equipment, this allows the fight to be won with few injuries even when outnumbered.]]
  
On the other hand, enemies with [[frag grenades]] will continuously throw them at the walls; they deal heavy damage against structures, meaning that even with the best of constructors and highly durable plasteel walls, they will not hold against constant explosive attacks for long.
+
If you have time, go somewhere where there is cover for you, but not the enemy. This gives you a significant upper hand in defensive battles where the enemy is coming at you. You should be hiding behind walls for cover if possible, as they provide up to 75% cover, but if they are not available, use what is available, e.g. rock chunks or trees. Space out your defenders to reduce the amount of collateral damage the pirates deal.  
  
Manhunter packs stay outside the walls and won't attempt to break down doors unless a colonist passes through them, so a wall can keep you safe in such events.
+
Melee sorties or rushes work well if you have brawlers, to negate any dangerous ranged threats; [[shield belt]]s help them traverse the short distance to engage.
  
==== Multilayer walls ====
+
=== Items ===
Having 2 layers of wall is more expensive but slows down the raiders even more.
+
You will need to bring some items so you can be prepared for a surprise attack.
  
You should not put the 2 layers of wall right next to each other; the outside layer will be inaccessible to your repairmen during a raid. Instead, consider putting a gap between the 2 walls. This allows repairmen to repair both layers of wall from the inside.
+
==== Weapons ====
 +
You usually don't have weapons to switch in a caravan unless you're bringing more than you need with you, so choosing the right weapons for your escort party is important.
  
You can have even more walls surrounding vital structures, either for defense or insulation, but remember having too many walls can take up precious space which you can use for better purposes.
+
*High-DPS weapons are optimal for dealing with ambushes.
 +
*Long-ranged weapons are good for taking down targets at medium-long range, however their low DPS may offset their range advantage in an ambush.
 +
*[[Minigun]]s are good against tightly-packed raiders hiding behind cover in an ambush. However, their heavy weight and movement speed reduction means you may want to reconsider bringing one.
 +
*Melee weapons can help fight off enemy brawlers, or disrupt enemies behind cover. You should have at least 1 melee fighter in each escort.
  
Having another layer of wall deeper inside base also helps defend against drop podding raiders landing at the edges of the map, if you have expanded to the buildable edges of the map already.
+
==== Medicine ====
 +
You should have some medicine handy so your colonists can patch themselves up after the battle.
  
=== [[Cover|Cover management]] ===
+
[[Medicine]] should be your choice here; you should try to get good treatment to reduce chance of infection, as colonists don't get much rest in a caravan. [[Herbal medicine]] is useful if you have a good doctor on hand.
Effective cover is an essential part in any defense, being able to negate a large part of any potential damage that can be dealt to your colonists. Enemies can also use cover to their advantage, so you should be careful of that as well.
 
  
Low cover do not seem to stack when placed in a double layer.
+
=== Aftermath ===
  
==== Sandbag emplacements ====
+
You can reform the caravan immediately after the battle is ended; you can bring along any downed colonists, as well as capture downed enemies. The caravan members will tend to themselves shortly afterwards.
If you're short on materials, such as during the start, you probably won't need to surround the whole settlement with sandbags yet. Just have short walls of sandbags facing the enemy to block any incoming bullets.
 
  
You may want to put them near your base to make it harder for enemies to take advantage of them.
+
Alternatively, you can stay and forage from the ambush map before you leave.
  
If you have perimeter walls you should also have sandbag emplacements in some places behind the walls. Once the raiders break through and storm in, you can still have cover to shoot them from.
+
= Manhunters =
 +
Animals, singly or in groups, may randomly turn mad and become hostile due to various reasons.
  
==== Perimeter sandbags ====
+
When mad, they will actively attack humanlikes or mechanoids, and will not attack other structures unless provoked (such as seeing someone walk through a door.  Note that this includes colony animals. Manhunters can and will navigate through doors opened by colony animals, and will attack the door for a while if the door closes in front of them). They are not sophisticated in their attacks and are only capable of actively using melee. Some can explode upon death for devastating results.
An essential defense in a base if you don't want to build killboxes (see below) or the like, this simply involves surrounding your base with [[sandbags]]. This provides great cover from gunfire, stopping 65% of the bullets that will otherwise hit your colonists. However this does not protect against explosive weapons.
 
  
Pros
+
=== Animal categories ===
*More flexible in terms of positioning
+
Most animals can be part of a manhunter pack. Each kind has its own statistics, and can be roughly grouped as follows:
*More complete coverage
 
Cons
 
*No protection against explosives
 
*More expensive than partial coverage, especially in larger bases
 
  
==== Pillboxes & Bunkers ====
+
# In terms of speed:
 +
#*Slow: Animals that run slower than an average colonist. This allows you to kite them in addition to melee blocking.
 +
#*Fast: Animals that are faster than most colonists.
 +
# In terms of other properties:
 +
#*Explosive: Animals that explode on death such as [[boomalope]]s or [[boomrat]]s. They can set your brawlers alight, ruining melee blocking defenses, so for these, you may need alternative tactics.  These types, however, can trigger a chain reaction, as the explosion from one animal can kill others, causing further explosions and potentially further deaths.
  
If you prefer prolonged firefights instead of taking your enemies out with cheap tricks, then this is for you. This is an early game strategy because all you need for it is [[Wall|walls]]. First, build a room in an area where you expect enemies to approach from. This room doesn't have to be box-like -- all you need is a place for your colonists to stand inside while they shoot out. Simply build a structure in any shape and then deconstruct a few walls to make some holes -- these will be firing holes for your shooters, where they can use the walls as cover.
+
=== Occurrence ===
  
Additionally, build a roof for your bunker so that every cell is protected from bad weather like rain and lightning strikes. So, when a raider attack comes and your shooters head to the bunker, they now enjoy not only the full cover bonus from having thick walls between them and the enemy.
+
Mad animals can strike your colony in several ways.
  
To truly finish the bunker, add flooring so your colonists don't have to worry so much about fires while inside.
+
#Singular mad animals may randomly attack.
 +
#Manhunters packs can arrive in great numbers, afflicted by the deadly disease [[Scaria]].
 +
#Psychic waves drive all animals of a single species insane, directing them at your colonists. They are usually scattered at first, then proceed to converge on your colonists.
 +
#In an unfortunate hunting incident, animals being hunted will turn on you, and may even bring their allies along.
  
Pros
+
=== Melee blocking ===
*Cheap -- all it takes is whatever materials you use for the walls
+
*Simple, easy and fun to build -- just make a room and knock out holes for your shooters
+
As with any full melee attacks, '''[[#Melee blocking|melee blocking]] is an extraordinarily efficient way to defeat manhunter packs'''. This is especially so if the animals are small such that they deal little damage before being killed, one after another.
*Makes it very hard for your enemies to hit your colonists since they are behind full cover
 
*You can easily extend this into a full bunker system just by adding more walls and knocking out more holes
 
Cons
 
*Should enemies overrun your bunker(s), they can turn the defenses on you to devastating effect
 
*May require Stonecutting research to get walls that are good enough to withstand sustained fire -- wood and steel just don't cut it
 
  
==== Alternating sandbags ====
+
When psychic waves occur, either lure animals into one spot or set up multiple chokes for attack.
Alternating walls with sandbags can provide even better cover, is slightly cheaper (assuming use of Steel or cheaper materials) and has a chance of blocking explosives. However, depending on the material, the walls may be flammable and also have less health than the sandbags.
 
  
==== The "Fire Wall" ====
+
=== Animals vs. Animals ===
An effective cover design is to alternate 2 walls and 1 sand bag, by doing this you have 3 colonists shooting out of the same hole, 2 behind full cover and one behind low cover.  This method can be expanded as long as there is room.
 
  
[[File:Cover_fire_wall.png|400px|thumb|right|Example of advanced cover using walls.<br> Colonists behind walls are enjoying full cover, with 75% of shots blocked. <br>Colonists behind sandbags are at half cover, with 65% of shots blocked.]]
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One good way to fight off mad animals is with... more animals! Just draft anyone with Release-capable animals assigned, and set them out. Your colonists can watch safely from a distance, or take a potshot or two while watching the animals tear each other apart. Just remember to have someone mop up the bloodstains and haul the corpses of the fallen. As with melee blocking in general, even non-Release-trained animals can be used for defense by confining them to a single tile zone at the exit of your killbox, causing them to both body-block and attack any hostile animals that try to enter through it while your colonists shoot at them.
  
Pros
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=== Hit-and-run ===
* Gives excellent cover
 
* Allows defenders to attack a wide range of targets while remaining behind cover
 
* Prevents colonists from ganging up on enemies
 
* Stops some explosives
 
  
Cons
+
A slower strategy is to draft a colonist, place it in a door to shoot a maddened animal, move the colonist back to safety and wait until the animal gives up and wanders off, then repeat. Be careful since this will draw the attention of surrounding maddened animals making them attack the door where the colonist came from, so be ready to repair it immediately. <br>
* Narrows the attack area, so the attackers must come straight at the defenders
+
You can either kill them directly or wait for blood loss to take its toll. Larger animals can be softened this way before you move in for the kill.
  
==== Cover removal ====
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This method is best used if you don't have enough firepower to take on them directly, and you have durable enough doors or a good builder to hold against animal attacks.
While sandbags already give you a sizable advantage over raiders in terns of cover (65% vs 40%), removing all sources of cover near your base is still very useful when dealing with ranged enemies as they will then have nowhere to hide. For better effectiveness, remove all nearby trees, which can also provide good cover.
 
  
==== Cover baiting ====
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=== Kiting ===
Once there's no suitable cover nearby, ranged attackers will scramble to find any suitable cover. You can exploit this by placing any form of low cover- [[stool]]s work best- to attract them to a place where they can be dealt with more easily.
 
  
=== Chokepoints ===
+
Being unsophisticated in their tactics, they can be lured easily.
Chokepoints allow your colonists to concentrate firepower, killing incoming attackers effectively, as well as utilize traps to their maximum potential.
 
  
At its simplest, it involves the use of a single opening in a wall, coupled with a location for colonists or turrets to fire and beat them, sometimes with traps to catch some of the unaware attackers.
+
If you have good shooters that are fast (moving >140%), you can easily kite the faster animals. <br>
 +
The larger animals are usually slower and any colonist that has normal Moving will do fine against them, though it's still better with a faster-than-average colonist.  
  
Another strategy is to litter the choke with sandbags or rubble, greatly slowing down the raiders and giving you time to deal with them.
+
It is possible to combine this with a long-range firing squad and turrets laying fire from a distance while they are chasing the colonist; be sure that the animals do not lose track of your kiters, otherwise they will switch targets and go for somebody else.
  
 
=== Turrets ===
 
=== Turrets ===
  
With the low firepower of the [[improvised turret]] in vanilla, it is not a good idea to extensively rely on them, especially in mid-late game. However they do provide decent additional fire to lay on the enemy combining with gunners, and also serve as a distraction from your more valuable colonists.
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Turrets can distract manhunters for your colonists, giving them more time to shoot while enemies are occupied by the turret. They may explode when destroyed, taking out a sizeable group of animals who won't run away from exploding turrets, switching to another target only after the turret is no more.
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 +
=== Waiting it out ===
 +
 
 +
If you have a perimeter wall or a superstructure base with decent food stocks, you can simply wait it out inside while they relentlessly swarm outside the walls.
 +
 
 +
Remember not to let anyone outside unless your intent is to kill the animals. Be careful with your tamed animals who may accidentally let the manhunters in by holding doors open for them.
 +
 
 +
They will actively attack doors if a colonist hides behind them; as a precaution, build it out of a sturdier material such as [[plasteel]] so they don't get destroyed during a manhunter attack. They will give up after a while if the doors are not destroyed. Alternatively, simply have a builder build a wall behind the door, totally preventing manhunters from entering even if they break the door.
 +
 
 +
=== Scavenging dead animals ===
  
Turret-reliant perimeter defenses are generally only viable for the first several raids (in [[AI_Storytellers|Tough Cassandra Classic]], after which the areas will quickly get overwhelmed each raid due to not being able to focus fire on the numerous raiders.  
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Manhunter packs are a decent source of [[meat]] for your colony. If there are still maddened animals, wait until the other animals from the pack go to sleep, walk away far enough, or get a fast colonist to try and haul the dead ones away.  Note that animals with [[Scaria]] from the manhunter pack events have a high chance of instantly rotting on death and thus being unharvestable for meat or fur/hide.
  
While protecting the outside starting area, you may want to rapidly pause the game during raids and give orders to repair damaged turrets.
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= Mechanoids =
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{{stub|reason=Needs new Mechanoid types and Mechanoid cluster events from Biotech}}
  
Turrets should each get their own sandbags to reduce incoming fire both to the turret and colonists behind the turret repairing/shooting. This has the added advantage of making it harder for raiders to run from an exploding turret.  
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Mechanoids come in 4 types: [[Scyther]]s, [[Lancer]]s (1.0), [[Centipede]]s, and [[Pikeman|Pikemen]] (1.1). They have much differing stats and weapons, meaning different tactics may be used. All types are armored to some degree, and are basically immune to fire damage.
  
They should be spaced out to prevent a turret explosion from damaging other turrets, potentially causing a chain reaction.
+
In many raids where they come/drop in at the edges, the Scythers will outrun the Centipedes by a great margin, giving some time to deal with them before the centipedes. However, they can and will support one another effectively, if given the chance for them to come together.
  
Remember that raiders will run from exploding turrets, and to get your colonists to run from an exploding turret as well.  
+
Unlike humanlike raiders, they do not flee, meaning that all of them have to be taken out to neutralize the threat. They do not actively use cover, either.
  
==== Turret Nested Entryway ====
+
=== General strategy ===
  
Putting a turreted defense in an underground base with a narrow entrance and wide turreted area is best because it forces the raiders to take a single-file approach to where all the turrets will be able to fire on them. There should be more than one line of turrets so that the innermost line or lines can be used to position colonists where they are not immediately under threat from grenades (grenadiers will target the closest turrets first) or if colonists are positioned closer so they can repair, to retreat colonists further back when turrets are about to be or have been destroyed. Every line of turrets should have a line of sandbags directly in front and every supporting wall/rock should also have sandbags to lessen the likelihood of collapse due to collateral damage. Turrets should not be placed directly (within three tiles) next to wall/rock or other turrets for the same reason, as they explode when they run out of health. Outside or in front of the defense area, you can put blasting charge minefields in areas they are likely to group up in.
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Ranged mechanoids have a long attack range (at least 27 tiles), making them troublesome to deal with. A way to deal with this is to [[#Luring in|lure them into close range]].
  
=== Traps ===
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They are vulnerable to EMP damage, which can stun them, rendering them hunks of helpless metal. This can open a window of opportunity where you safely engage at close range, or even with melee. After each use of EMP, mechanoids will adapt to it, becoming immune to further stuns for a short while, so you will need to carefully time assaults and disengage when the mechanoids are about to reactivate.
  
You can lay different kinds of traps to provide a nasty surprise for any incoming raiders.
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=== Scythers ===
  
==== [[IED trap]]s ====
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[[{{Q|Scyther|Image}}||100px|right]]
Early on, you may want to focus on armed colonist defense with turrets, but as the raiders grow in number, it becomes more efficient to use a bit of metal to kill several at once than to invest a lot of metal in a turret that costs nothing to fire, but will explode rapidly due to large raider groups.
 
  
IED traps are extremely effective when used correctly, however in open areas they are mostly useless as the raiders are highly unlikely to step in any of the traps, and even if they do they're not tightly packed enough for the trap to cause serious damage. Thus, it is better if you combine traps with funneling to force the raiders together.
+
Scythers are deadly with melee, and will charge head first at your defenders. They can easily win in a 1v1 fight unless your fighters are heavily armored and have high DPS.
  
1 IED trap can trigger other IED traps in its explosion radius. This may or may not be desirable depending on the situation; you can easily set of a chain reaction to destroy a whole incoming raider horde, but also use up much more resources.
+
The optimal method of dispatching them is by [[#Melee blocking|melee blocking]], with the added effect of luring the other mechanoids closer to your base. This must be done quickly otherwise the centipedes will catch up and unleash hell on your colonists who are closely packed together in a melee blocking attack.
  
IED traps have a delay before exploding, allowing some raiders to escape. Raiders will attempt to run from an exploding trap, though the fuse is short enough to catch some of them.
+
EMP weaponry combined with melee blocking is a frighteningly effective and safe way to deal with scyther-only charges. A stunned scyther standing in the chokepoint will block all the other scythers standing behind. To prevent adaptation, only stun the mechanoids within the chokepoint.
  
==== [[Deadfall trap]]s ====
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If fighting from a distance, high-damage weapons are essential to bursting them down before they reach your colonists. Make sure you always have someone to [[#Peeling|peel]] them off your gunners in case they do survive your barrage.
A reusable trap that deals heavy damage on a single target. It can severely injure, maim or kill incoming raiders with ease, especially if you use a better material such as plasteel.
 
  
Where the trap hits is dependent on luck; if you're lucky the trap will slice off an unlucky raider's head in 1 clean blow, while if you aren't the raider will have its ears, eyes, nose and limbs chopped off, before finally taking the fatal blow. Even when made with plasteel, it usually takes 2 or more traps to kill a raider. Shields block damage from the trap, so shielded raiders will need more traps to kill or down.
+
=== Lancers ===
  
Raiders will remember where you put the trap, and they have to walk over the trap to trigger it; thus, this trap is ineffective on its own. Trap memory is per faction, and doesn't apply to other factions -- if, say, the Vipers of Power come in and sets off your traps, then they would remember that. But, if the Rippers of Fire later attack, they won't have that knowledge and will still set off the same traps. It also only applies to humanlike raiders.
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[[{{Q|Lancer|Image}}||100px|right]]
  
The trap is useless in open space, being only able to hit 1 target and requires being walked over to trigger. <br>
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Lancers are capable of medium-long range supporting fire to pick out single targets. Despite their apparent role, their performance is actually better the closer you are to them, meaning that approaching them isn't a good option.
Combine with funneling, and it becomes a scary trap to face up against. Despite knowing where the traps are, they are still inclined to walk over them to get to you, meaning that the trap is effective even when its position is known.
 
  
The trap takes time to rearm, and if you have a lot of these traps, it will take ages to rearm without enough colonists. You will have to prioritize rearming traps so they will be ready for the next raid, especially if they come very often.
+
They are vulnerable in melee combat, so melee rushing supported by close-range firepower can be used to take them down. Their low health makes taking them down relatively quick despite their light armor, though their damage in melee combat should not be underestimated, and concentrated fire from charge lances can make short work of shields.
  
==== Roof trap ====
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If fighting from a distance, cover is vital in getting the upper hand. You need to be able to get your other gunners into range while giving them reasonable cover from the high damage shots. Lancers aren't particularly good shooters (equivalent to a level 8 shooter), so you may readily outperform them with sufficient mid-long ranged firepower.
This clever trap is simple to set up and devastating when triggered. It can be considered a giant single-use deadfall trap.
 
  
All you need to do is to erect 1 pillar made of a low-HP material, optimally wood, then build a roof over it. When raiders walk near the pillar, demolish it from a distance. You can shoot it with a few long-range guns or throw a grenade at it if you are reckless.
+
=== Centipedes ===
  
After the pillar is destroyed, the roof will fall, crushing the raiders on the head, neck or torso and dealing up to 20 damage.
+
[[{{Q|Centipede|Image}}||100px|right]]
  
You can even put down some rock chunks or other low cover such as stools to bait the enemy into going under the roof trap for 'cover'. <br>
+
Centipedes, on the other hand, specialize in crowd control and area denial; the [[Heavy charge blaster]] can annihilate groups of colonists, while the [[Inferno cannon]] sets your colonists ablaze and will burn down your base if you're not careful. They are incredibly durable, sporting thick armor and high health, and can take many hits before being downed.
Triggering an IED trap near it is also very effective, with the advantage of being automatically triggered and dealing even more damage.
 
  
Pros
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Spreading colonists apart can mitigate the crowd-control capabilities of centipedes, limiting the number of colonists hit by their weapons.
*Large radius; easily injures a sizable group of raiders at once
 
*Penetrates shields
 
*Low cost; only 5 wood each
 
*No risk of friendly activation
 
*Undetectable by raiders, and position will not be remembered
 
Cons
 
*Hard to trigger; you may need to lead your targets
 
*Somewhat low damage compared to other traps
 
*Rarely kills or incapacitates
 
*Cannot be used with killboxes easily
 
  
<gallery widths="300px" heights="300px" class="center" mode="nolines">
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The Inferno cannon is annoying to deal with and should be your priority target. Keep watch on your colonists at all times and always send them back into cover after they get hit.
File:Roof_trap.png|Roof trap before triggering.
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File:Roof_trap_triggered.png|Roof trap after triggering, having injured some raiders (some through shields) and left a large pile of rubble.
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Despite their high resistance against sharp damage, shooting them is generally the best option. One good thing is that their large size makes them much easier to hit.
File:Roof_trap_auto.png|More refined roof trap design with stools to lure the enemy into using them as cover, along with an IED trap to automatically trigger the trap. Significantly more expensive.
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</gallery>
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Engaging it in melee is possible, though you have to be careful. While centipedes don't hit hard in melee, if they are carrying the heavy charge blaster, they can deal massive damage to grouped up brawlers, while inferno cannon can cause the brawlers to ignite and run, allowing the previously locked down centipedes to fire. Ideally, all nearby centipedes must either be engaged in melee or disabled to prevent this from happening.
 +
 
 +
Their slow speed and weaker blunt armor make them excellent targets for high-explosive mortar attacks. Often you can land a couple of blows before they reach firing range, weakening them. This property also allows you to kite them provided they have no lancers or scythers supporting them.
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 +
=== Pikemen ===
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 +
[[{{Q|Pikeman|Image}}||100px|right]]
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Introduced in 1.1, pikemen take over the lancer's role as snipers. Their extreme range is only matched by the [[sniper rifle]].
 +
 
 +
They have poor damage output, making them less threatening compared to other mechanoids. Their accuracy is also not appropriate for a sniping mech- equivalent to a level 8 shooter, it will more often than not miss at range.
 +
 
 +
As the description says, engaging pikemen at close range can be a viable way to take them down, once all others have been dealt with. Charging them can be risky due to the long distance pawns need to travel, but shield belts make the charge much safer, especially when you have multiple brawlers charging at once to divert concentrated fire. Swarming them with trained animals is also a viable strategy if you lack multiple skilled melee pawns or need them elsewhere.
 +
 
 +
=== Termites ===
 +
[[{{Q|Termite|Image}}||100px|right]]
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 +
Spawning only in mechanoid breach raids, the [[termite]] is a dedicated anti-structure opponent. The termite's [[thump cannon]] can deal tremendous damage to your structures, and are able to destroy a three tile wide section of any [[wall]] weaker than [[plasteel]] in three shots or less. Against pawns, however, it is significantly less effective with lower damage, {{AP}}, and {{DPS}} than even the lowly [[short bow]].
 +
 
 +
Since they are so specialized in breaching walls, they cannot deal much damage to your pawns. However, killing them should be prioritized after [[scyther]]s, since they will destroy your pawn's [[cover]], exposing your pawns to danger from the termites much more directly dangerous companions.
 +
 
 +
=== Crashed ships ===
 +
 
 +
Mechanoids are also part of crashed ship events. In 1.1 they drop alongside the ship in pods, while in 1.0 or earlier they swarm out when the ship is damaged.
 +
 
 +
The type and where it lands are both important factors to consider when dealing with them.
 +
 
 +
Psychic parts will reduce mood and occasionally drive nearby animals mad, while defoliator parts (aka. poison ship parts in 1.0) will kill nearby plants and cause serious losses to pastures or crops. You cannot deconstruct the part, only destroy it.
 +
 
 +
Since they won't attack until triggered, you have some time to prepare. However, the longer you take, the worse it gets. If the defoliator ship part lands on the opposite side of your base at a map border, it is possible to leave it there, as they will also react to incoming raids and you may as well solve two problems at once. Not the same for the psychic version though.
 +
 
 +
If they land between your plantations, you will need to place firefoam poppers and trigger them before combat to prevent fires; the foam will persist until it rains, but then if it is rainy, you won't need the poppers. You may also want to keep a few untriggered poppers nearby to rapidly extinguish a group of burning colonists at once.
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 +
[[File:Crashed ship part using foam poppers.png|center|500px]]
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 +
==== Defense behavior ====
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 +
Mechanoids are triggered immediately when the part is damaged, or something is built within a three-tile radius. They may also be triggered by the Firefoam popper explosion.
 +
 
 +
Upon triggering, scythers will immediately charge to attack, while lancers, centipedes and pikemen may instead sit in place and attempt to shoot interlopers, only moving to get within range.
 +
 
 +
Afterwards, they will guard the ship part, engaging any hostiles that come close, and chasing them over short distances. They will return to the part if targets stray too far away from the ship.
 +
 
 +
In 1.0 mechanoids chased targets over long distances and abandoned the ship part when it is at 50% health.
 +
 
 +
==== Long-range engagement ====
 +
 
 +
In the current version, it is better to trigger the mechanoids from a distance, rather than fighting way up close. This is necessary such that you can weaken the scythers with concentrated fire before they reach melee engagement range, as well as give you more time to defeat the lancers before the centipedes move within range. Scythers are especially dangerous as they come in swarms and can quickly overwhelm your gunners, as well as overpower your melee brawlers unless you outnumber or outarm them.
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 +
You can trigger the mechanoids either by high-explosive mortar fire, or sniping the ship part.
 +
*By attacking with sniper rifles at maximum range you will gain a good enough lead against the mechs to be able to escape safely even without enhancements unless armor is over-encumbering your colonists.
 +
*Mortar volleys can soften the mechanoids, making them easier to defeat by your colonists afterwards.  Mortars may also destroy the ship part itself, which both ends the threat and prevents the mechanoids from disengaging from an attack and returning to guard it (though this can be either good or bad depending on the state of your defenses).
 +
*In 1.1 you can also use EMP to stun them before engaging, then retreat before they exit stun, which is 25 seconds after being hit by EMP.
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 +
==== Weapons ====
 +
 
 +
High-DPS weapons are optimal at destroying both the ship part and its defending mechanoids.
 +
 
 +
Due to the mechanoids spawning very close together, area of effect or crowd control weapons are punishing against them:
 +
*The [[minigun]] is a powerful weapon here:
 +
**It can make short work of the bunched-up mechanoids, then shred the ship part using its unparalleled raw DPS.
 +
**Its already high DPS is further amplified when attacking centipedes as their large size makes it easier to land shots.
 +
**Its long range allows you to attack from a safer distance.
 +
*EMP mortar blasts are able to stun a large number of mechanoids caught in its blast. As the ship part blocks EMP pulses, fire several at once to hit all enemies with a single volley.
 +
*Explosive weapons are useful for dealing damage, but keep in mind that the ship part will block the explosion. They do extra damage to the ship part.
 +
 
 +
Incendiary weapons are a poor choice for any situation involving mechanoids or crashed ships, given that both are non-flammable.
 +
 
 +
The [[orbital power beam targeter]] is the ultimate weapon against crashed ships. All you need to do is to aim the beam directly on the ship, and the beam will melt both the ship and its surrounding mechanoids.
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 +
==== Construction ====
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 +
{{main|Defense structures#Crashed ships}}
 +
 
 +
Construction is an important part of defeating the mechanoids in a crashed ship. Usually it is best if you can prepare ample cover, such as sandbags or walls, to shoot from.
 +
 
 +
Keep note that building within a three-tile distance will instantly trigger the mechanoids.
 +
 
 +
If done properly, [[IED trap]]s can be used to weaken a mechanoid swarm. Don't build too many or you will vaporize the mechanoid corpses, which can be deconstructed for resources.
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 +
==== Luring in ====
 +
 
 +
If you already have ample static defenses, like killboxes, and you want to lure the mechanoids in, you will need to make the mechanoids abandon the ship by destroying it from a long distance.
 +
 
 +
Previously in 1.0, you can lure the mechanoids simply by triggering at range.
 +
 
 +
==== Hit-and-run (1.1) ====
 +
 
 +
Their behavior change in 1.1 makes them vulnerable to hit-and-run tactics. After taking care of the scythers, you are able to chip away at the mechanoids slowly by shooting with sniper rifles at maximum range. If all pikemen are taken out then you are able to safely engage without fear of returning fire.
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 +
==== Zoning animals ====
 +
 
 +
When dealing with a crashed psychic ship part that has been there for some time, do not let any of your tamed animals near it, for the ship part can drive them into manhunter mode. This is additionally harmful as they are capable of opening doors to attack your colonists.
 +
 
 +
=== Mechanoid breach raids ===
 +
Mechanoid of the breach raids will not ever walk through the kill box as you wanted them to, instead they will blast walls down and head straight for your base.{{Check Tag|Detail Needed|What item do they target/path to?}}
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 +
It is worth considering the use of a [[Psychic shock lance|psychic shock]] or [[Psychic insanity lance|insanity lance]] to take down the [[termite]] from far away, as there will only be up to two termites per raid. Losing the use of the specialized anti-structure [[thump cannon]] will significantly delay the raid, as they will instead be forced to destroy walls in their path with their more traditional weaponry. This gives you time to prepare a defense behind that section of wall.
 +
 
 +
Typically this raid strategy will result in the mechanoids clumping up, giving a prime target for [[EMP grenades]] or a [[triple rocket launcher]], hopefully to devastating effect. Note the mechs will not attack colonists unless they come into the range of the mechanoid's gun. The long range of the triple rocket launcher is beneficial here, only putting the wielder in range of the [[pikeman|pikemen's]] needle gun.
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 +
= Infestations =
 +
 
 +
[[Infestation]]s will spawn under Overhead Mountains within 30 tiles of a colony [[structure]]. They can be a serious hazard in mountain bases due to the lack of free space to run away from with too many obstacles on the path, but not so much threat in open area (flat) maps. [[Insectoids]] are lightly armored, exclusively use melee and are slower than colonists. This gives them some protection against close range attacks, but leaves them vulnerable to ranged attacks and kiting tactics.
 +
 
 +
[[File:Infestation within mountain rooms bugs.png|400px]]
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 +
'''If you don't destroy them fast enough, they can reproduce, giving rise to even more hives and insects'''. This is especially true if you happen to have forgotten about a [[hive]], which given time can build itself into a giant mega-hive.
 +
 
 +
=== Behavior ===
 +
 
 +
Insects have a hive mindset; they will remain tending to their hive cluster, until they see an intruder, in which case they begin to engage all at once. They may also attack random furniture and structures in your colony.
 +
 
 +
=== Fighting infestations ===
  
===== Mountain trap =====
+
The enclosed nature of mountain bases give colonists little distance to shoot from; thus, you may want some melee fighters to pair up with any ranged colonists.
A variant of the roof trap using overhead mountains instead of constructed roofs.
 
  
To use it, you mine out a whole mountain and then support the roof with a low-HP wall. It is triggered the same way as the regular roof trap, and has the same effect radius except victims are instantly killed.
+
Individual fighters will quickly get overwhelmed by the insects especially against large [[megaspider]]s, so you shouldn't trickle your defensive forces in; rather, send them all at once to overpower the insects.
  
The collapsed rocks spawned after this trap is triggered can be useful or harmful depending on the situation.
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=== Melee blocking ===
  
Rearming it is a lengthy process; you will have to mine out some rocks, '''replace the center pillar''', then mine out the rest of the rocks. Mining out all the rocks will result in your colonists getting crushed by the trap. If you want, you can also damage the center pillar until it has a sliver of health remaining, then finish it off in order to trigger it.
+
If there is a single choke point for the insects to get into your base (usually a door leading to a corridor), usage of this tactic allows you to defeat insects efficiently. You may even stand a chance against massive infestations if for some reason fire isn't viable, but don't get cocky. If the infestation is large you will need to bring backup tanks to replace the initial melee blocker if he or she gets downed or heavily injured.
  
Pros
+
Choke points can arise on their own from insects digging out; simply wait for them to tunnel through and massacre them once they exit.
*Instantly kills raiders
 
*Leaves no corpses
 
  
Cons
+
This tactic is only viable if you have enough soldiers with ''substantial'' armor as insects inflict heavy sharp damage and will obliterate everybody not sufficiently protected.
*Takes much longer and is more dangerous to re-arm
 
**You have to mine out everything then support the mountain roof with low-HP wall; compare with regular roof trap which simply requires building the wall
 
**Colonists risk death if you aren't careful
 
*No loot or capturable downed raiders
 
  
=== Killboxes ===
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=== Using fire ===
  
Killboxes are in general heavily trapped, armed areas where enemies are funneled to so they can be destroyed easily.
+
Fire is an effective way to clear early-mid stage infestations. If they spawn in an enclosed area with a door and plenty of flammables, all you need to do is to toss a molotov or shoot an [[incendiary launcher]] bolt into the room. The room will quickly catch fire, causing the temperature to rise fast, roasting the insects in it along with the hives.
  
They almost consist of a funnel which directs raiders into it, like a wall with a single opening. <br>
+
The downside of this approach is that it makes it impossible to farm any insect meat or jelly from the infestation, because it will all burn, and it is usually too hot inside the spawn room to manually extinguish the fires to save the goods (unless there is a way to quickly vent the heat, which is usually not feasible to set up).
Raiders will then trickle in, allowing colonists or turrets to concentrate fire on them, or traps to destroy them while they try to move in to attack.
 
  
This is an extremely effective way to defeat most raids, as the enemies will often be overwhelmed by the sheer firepower raining on them. It also allows effective use of traps, as funneling enemies greatly increases the chance one's going to trigger them.
+
If there is a dedicated place in your base for infestations to spawn (see ''baiting'' below), it helps to have a few cheap wooden furniture items in that room, and maybe a few tiles of wooden floor.  A great source of additional flammable material are tainted clothing items and desiccated animal bodies.  Dusters and parkas have a lot of hitpoints, so they burn longer.  These items are easy to get into the burn room simply by creating a stockpile with appropriate settings.  A 3x3 stockpile should be more than enough to create enough heat to clear out any infestation. The fire created will usually last several hours, which is more than enough time to kill everything in the spawn room.
  
Note that sappers will attempt to mine into the base away from the killboxes, so make sure you have an effective coping strategy.
+
Separating the actual spawn room from the burn room with a wooden door makes it very easy for your colonists to start the fire without the insects attacking.  The heat will spread into the spawn room regardless (and burn the wooden door).
  
==== Building ====
+
Having a few flammable structures, such as cheap furniture) in the room is important, because the insects are stupid enough to attack these first when enraged from the fire, wasting time — instead of digging out of this trap.
  
You should double wall your killboxes as the sheer firepower raining on your enemies will inevitably destroy some of your own walls by accident, allowing raiders to flood into the killbox from another direction, bypassing traps and overwhelming your defenders.
+
It is possible to reach the temperature maximum of 2000 degrees celsius this way.  Check the temperature in the spawn room before stepping in with any colonists, because they will very quickly collapse from heat stroke and possibly catch fire and die at these ludicrous temperatures.
  
Any entryways of the killbox should not be straight, otherwise raiders will simply fire using the entryway as cover. Instead, you should have a turn to prompt the raiders to enter an area where you can get them easily.
+
The insects will rush for the exit of the burn room in a panic when they realize what is happening to them, and will quickly attempt to dig out to escape, so make sure the exit door is made of rock which is durable and nonflammable.
  
Don't make your entrance too long, otherwise raiders will think it's not worth it going such a distance and will decide to go for something else instead. Manhunters however will still chase colonists down a long corridor or over extreme distances, so you can have some dedicated anti-manhunter killboxes with extra-long corridors for this purpose.
+
If there aren't any flammables around, you can still shoot the hives with fire weaponry. They will light aflame, along with the fuel puddles created on the ground.
  
For better effectiveness fill the entryway with deadfall traps, occasionally some IED traps (not too close otherwise they will set off a chain reaction) to soften the raiders before you fire on them, and chunks or sandbags to greatly slow them down.
+
As any items inside the room are likely to catch fire and be destroyed, this tactic is not recommended in a place with many valuables such as warehouses. Also be careful with the heat spreading to nearby rooms.
  
The below shows the results of different killbox entryways.
+
==== Heat Stroke ====
<gallery widths="350px" heights="350px" class="center" mode="nolines">
 
File:Killbox_right.png|Right design of a killbox entryway. Raiders are prompted to move into the killbox, sometimes so close that they prefer to melee attack instead of shoot.
 
File:Killbox_wrong.png|Wrong design of a killbox entryway. Raiders are bunching up in the entryway, using its walls as cover.
 
</gallery>
 
  
==== Equipment ====
+
By using a colonist to manually throw molotovs at the ground, either inside the bug room itself or in an adjacent room with an open doorway, you can maintain the temperature of the insect room between 150C and 200C, slowly knocking them unconscious and killing through heatstroke. As long as the temperature does not rise above 200C, the bugs will not get burn injuries, and therefore will not become aggressive. Have your colonist throw the molotovs through an open doorway in order to protect the colonist from the heat. When doing this, take care not to hit anything directly with the molotovs, as the fires created will anger the insects and set flammable objects on fire.
Colonists defending in a killbox will be shooting at a large number of targets no more than a few tiles away (usually). Thus, defenders should use close ranged high damage weaponry for firing at raiders.
 
  
*[[Charge rifle]]s, [[Heavy SMG]]s, or [[Pump shotgun]]s work good in killboxes, being able to dish out hurt at close-mid ranges.
+
It is important to note when doing this to make sure that all bugs are significantly above the serious heat stroke threshhold (60%) before you move in, otherwise the temperature will start falling when you stop throwing molotovs and they may recover and attack your colonists.
*[[Minigun]]s are excellent at attacking the bunched-up raiders inside a killbox. While it won't hit its intended target, it will hit everything right next to it, inflicting heavy damage.
 
**You can concentrate fire on a crafting spot or animal sleeping spot placed right in the entrance with miniguns to rip incoming raiders apart.
 
*Don't bother with long-ranged weapons such as the [[survival rifle]] or [[sniper rifle]] as they can't deal enough hurt to be effective at close ranges.
 
*Grenades are good if you can time them right. Throw them at the entrance where each explosion to hit a tight group of raiders, especially if they're slowed down with obstacles. Don't throw too many otherwise you'll demolish the walls of the killbox.
 
*Have melee colonists with [[longsword]]s standing nearby as raiders who enter your killbox may decide to melee charge you instead.
 
  
=== Damage minimization ===
+
=== Explosives ===
The below shows ways to minimize the damage done to your base.
 
  
==== Firebreaks ====
+
Explosives are useful against large infestations. The [[Triple rocket launcher]] can raze infestations instantly. A single use [[Doomsday rocket launcher]] will deal massive damage over a large area. [[Frag grenades]] are unlimited and work well if you have the courage to send someone to close range. One blast can get several insects. <br>
4-tile wide strips of any kind of artificial floor is capable of stopping the spread of fires. This can negate many fires from reaching your base and burning it down.
+
Explosive animals ([[boomalope]]s or [[boomrat]]s) are also effective at clearing out infestations. Have them march straight into the hive by zoning them there. When the insects attack, the animals will be injured and explode, setting the insects and hives on fire.
  
You can build one surrounding your base, and divide the map into sections in order to control fires.
+
Mortars are useless against the hives themselves as they can't hit anything below an overhead mountain. However they are an option when fighting the insects in open space, with the explosions capable of severely injuring the insects, taking out the smaller ones in 1-2 hits.
  
Keep in mind that building such amounts of floors usually requires huge amounts of building materials.
+
=== Late-stage infestations ===
  
==== Walling structures ====
+
<gallery widths="500px" heights="400px" class="center" mode="nolines">
If you don't plan on building an entire perimeter wall, you can simply build a wall around your important structures, such as generators, power conduits or crops. Raiders will prioritize other targets over these, averting destruction.
+
File:Infestation_ancient_shrine.png
 +
</gallery>
 +
 
 +
If you've accidentally left a hive or two behind or totally ignored an infestation, after a few seasons you will have a giant hive community sprawling. This is '''extremely''' hard to treat, especially if you're low on colonists.
  
For geothermal generators, remember to have some exposed roof areas so the heat from the generator can vent out instead of being trapped inside.
+
If you're still on early-midgame, it's generally recommended that you pack up and run. If not, however, you will have to deal with them slowly. You need to lure the insects out, then defeat them to buy time for others to enter and destroy the hives. Kiting is a possibility due to their slower speeds, provided they continue to chase down your colonists.
  
== Advanced construction ==
+
Explosives are recommended as they deal immense damage to the closely packed hives and insects. This is especially so with the doomsday rocket launcher, which can set entire infestations on fire, destroying the hives and severely weakening the insects.
  
=== The "Melee Defense" ===
+
=== Prevention ===
  
This defense uses only melee weapons to defend against endless number of enemies with just 3 colonists.
+
If you only have a few tiles of Overhead Mountain then it's best that you fill it up with walls to prevent any infestations from happening. If you are in a mountain base, then you will need to do more than that.
  
The walls fill funnel in the enemies in so that they would start attacking the door, they will be slowed down by the Rock chunks, when they are attacking the door the colonists on either side of the door will be able to melee attack the enemies through the corner of the door and the wall without them fighting back, and with the third colonist in front of the door repairing it you can keep this up until all of your enemies are dead or retreating.
+
==== Baiting ====
  
[[Scyther blade]]s, [[Power claw|power claw]]s or longswords are recommended but any melee weapon will do, the walls and door should be made out of granite or plasteel to ensure maximum durability.
+
You can mine out rooms a distance away from your colony to somehow control insects to nest there, instead of letting them spawn right in the middle of your base. Place some cheap flammable furniture inside to confuse the insects into thinking it's a prospective nesting spot, as well as to light on fire for a quick solution to an infestation problem. You may even use wooden walls or columns, which in a large enough room will cause a roof collapse and crush insects after being destroyed.
  
Sometimes you will need to have a colonist stand in the door to attract enemies.
+
A well-lit base discourages insects from nesting, though it can still happen. If you bait insects to spawn elsewhere the chance of an infestation spawning inside is greatly reduced.
  
&#9641; - ''[[Wall]]'' |
+
If you want the insect trap to automatically kill insects, put an [[IED incendiary trap]] inside the room, next to the flammables. Once an infestation spawns the insects will trigger the trap, lighting the room on fire and broiling the insects.
&#9673; - ''[[Colonist]]'' |
 
&#9678; - ''[[Rock chunk]]'' |
 
&#9634; - ''[[Door]]'' |
 
<pre>
 
      &#9650; Outside
 
  &#9641;&#9641;&#9641;&#9641;&#9641;&#9678;&#9641;&#9641;&#9641;&#9641;&#9641;
 
        &#9641;&#9678;&#9641;
 
        &#9641;&#9678;&#9641;
 
        &#9641;&#9678;&#9641;
 
        &#9641;&#9678;&#9641;
 
        &#9641;&#9678;&#9641;
 
        &#9641;&#9678;&#9641;
 
        &#9641;&#9678;&#9641;
 
        &#9641;&#9678;&#9641;
 
        &#9641;&#9678;&#9641;
 
        &#9641;&#9678;&#9641;
 
        &#9673;&#9634;&#9673;
 
        &#9673;
 
      &#9660; Inside
 
</pre>
 
  
'''Pros'''
+
Alternatively, fill it with spike traps to weaken them before they strike your base, giving you the advantage. Doing this preserves the hives, which can be good if you want to farm insect jelly.
* Colonists will not get hurt
 
* Only requires 3 colonists
 
  
'''Cons'''
+
==== Deep freezing ====
* It is unsure if the one way melee attack is a bug exploit or if it is intended by the developers
 
* Circumvented by sappers
 
  
=== "Attention Suppressor" Entryway ===
+
An interesting way to completely prevent infestations is to simply set your base temperature below -17°C with coolers, and have everyone in the colony wear [[parka]]s.
Once you have lots of bulk materials, but don't have enough industry to build proper defenses, you can build an attention suppressor out front of your basic defensive line. This is usually out of [[wood]], although the flammability of wood is a problem.
 
  
Start like you're making a 29×29 room(27×27 interior), but instead of doors, just leave one-tile openings at opposite ends. That way it doesn't get a roof. If needed, use a [[no roof area]]. Down the middle of the attention suppressor leave an open path, 3 tiles wide, which will actually be travelled by your colonists. Pack the sides with alternating walls, leaving numerous blind alleys branching off the open path. The attention suppressor should look like two giant combs facing each other across the path, or perhaps like a cutaway of an especially-blocky sound suppressor.
+
This means that the 'Slept in the cold' debuff will be prevalent in the colony, however, so you will need something to offset the mood. It will also incur a work speed penalty on all production facilities due to low temperature, making this strategy not very viable on all but the lowest difficulties (where infestations are not a big threat in any case).
  
'''Diagram:'''
+
=== Deep drill infestations ===
  
<pre>
+
Deep drills can unearth insect hives, which will result in enraged insects charging up to attack after a while.
#############  #############
 
#                          #
 
#############  #############
 
#                          #
 
#############  #############
 
#                          #
 
#############  #############
 
#                          #
 
#############  #############
 
#                          #
 
...and so on
 
</pre>
 
  
A raider entering through an attention suppressor is presented with numerous blind alleys, each one of which could hold something important. Raiders will typically only resist the lure of a dozen or so blind alleys, after which they'll turn off into a blind alley to look for something to attack. In many cases they'll attack the walls, but the general effect is that a raiding force will spend a long time milling around in the attention suppressor, deeply distracted, and slowly trickle out of it toward your base alone, or (for a large raid) in twos and threes. This slow trickle of raiders is easily handled by a few colonists with basic weapons, or later a few turrets and a [[Menus#Repair|repair]]er.
+
When you see this happen, gather up your defense forces to fight the incoming insects. Have them approach your base where you can melee block them while evacuating other colonists so the insects don't go for them first. Nearby pets or other tamed animals will also be attacked; you can either evacuate them beforehand to reduce losses and ensure a successful melee blocking attack, or use them as bait to grab the insects' attention while your colonists lay fire on them.
  
Colonists and visitors with specific business on one side or the other of the attention suppressor will go quickly down the middle without being distracted. However, colonists pursuing [[joy]] activities like going for a walk will usually be diverted to do so in the blind alleys of the attention suppressor. As a result, it's not safe to fill with deathtraps.
+
Note that if you have a deep drill near the walls of a room it is possible for the insects to spawn outside the room.
  
=== Tunnel of Doom ===
+
= Prison breaks =
 +
If you have prisoners (or potential colonists or hats) on hand, always expect them to break out any time. This is more so if you have many of them, each one ready to incite a riot whenever the guards aren't looking.
  
One early-mid game tactic is to slow down your enemies by (possibly using mountains to help) creating a narrow strip between your colony and potential areas where raiders could attack from, then placing a wall of sandbags close to the exit of the strip (the end closer to your colony obviously) where you can put turrets and/or colonists to attack the raiders. (You can also place debris in the strip so that they are slowed even more).
+
Escaping prisoners can open any colony door, and will snatch weapons whenever they see one.
  
'''Pros'''
+
=== Strategy ===
*Fairly cheap
+
You should [[#body block|body block the prisoners]] with armored wardens carrying blunt weapons, or melee attacks with guns. They will fight and down the prisoners while blocking their exit, buying time for reinforcements.
*Easy to build
 
'''Cons'''
 
*Sandbags need steel (debris can be used instead of sandbags)
 
  
=== Trap Chokepoints ===
+
Against already injured yet unarmed prisoners, send 1 brawler per prisoner to minimize the risk of beating them to death. <br>
 +
For those at full health, 2 unarmed wardens or 1 skilled one can tackle a full-health unarmed prisoner without the wardens being downed in most cases.
  
Deadfall traps are available to you from the start of the game even if you start off as a tribe. Though they can be costly to make in large numbers, if you have lots of wood or steel on your map you can start producing them early.
+
Ranged wardens should attack when the prisoners are blocked by melee wardens so they can attack from a distance without much danger, and their weapons won't land in the enemy hands so easily. Don't fire too much at them as you risk permanent damage as well as accidentally killing the prisoner.
  
The main point of this defense is that you build a wall around your colony, essentially creating a compound. This can be more or less costly depending on how many hills are around that you can use as natural barriers. You leave an empty tile or two on the wall as exits as needed and then you build a second wall segment 7-11 tiles long just in front of the empty tiles. These segments will have a door at the same spot as the hole behind them. Then, you fill up the space in-between with traps like so:
+
=== Weapons ===
 +
You goal here isn't to kill the prisoners, it's to down them so you can recapture them.
  
&#9635; - '''[[Door]]'''
+
*Blunt melee weapons such as the [[mace]] is a good choice for wardens to down escapees. The wounds don't bleed (unless you crush an internal organ or destroy a part entirely), nor will they be infected, giving them higher survival chances overall.
&#9673; - '''[[Deadfall trap]]'''
+
*At a distance, use low-moderate DPS weapons that won't deal too much damage to the prisoners, or to your people when the prisoners pick them up.
&#9641; - Walls
+
*Don't use high damage per hit weapons such as [[sniper rifle]]s or [[longsword]]s, as you risk instantly killing them or destroying an important part.
  
<pre>
+
=== Turrets ===
&#9650; Outside
 
  &#9641; &#9641; &#9641; &#9641; &#9635; &#9641; &#9641; &#9641; &#9641;
 
&#9673; &#9673; &#9673; &#9673; &#9673;  &#9673; &#9673; &#9673; &#9673; &#9673;
 
&#9641; &#9641; &#9641; &#9641; &#9641;  &#9641; &#9641; &#9641; &#9641; &#9641;
 
&#9660; Inside
 
</pre>
 
  
Due to how the AI works, your colonists will prefer to move through the door, thereby always avoiding your own traps, whereas any enemies will prefer to go around the wall segment straight towards the open entrance, but that leads them into your line of traps. 5-6 traps, - even if made from wood - are usually enough to kill or severely wound an enemy. If you can afford to make them out of steel or better, you can expect an assaulting enemy force to take heavy losses by the time they make it through your traps.
+
Mini-turrets can be used as a form of distraction and supplementary firepower against prison breaks. Station them outside the prison doors, and they will fire on the escapees. They deliver decent firepower at short ranges, and leave no usable weapons on destruction. Prisoners also tend to stop to fight the turrets, giving wardens time to reach them.
  
'''Pros'''
+
1-3 are enough for most prisons. Don't put too many otherwise they may kill the prisoners before you can intervene.
* Can often single handedly rout early raiders without your colonists ever being in danger.
 
* Traps can be rearmed any number of times, making this method economical in the long run.
 
  
'''Cons'''
+
{{nav/guides}}
* High resource cost can make it unfeasible on resource poor maps.
+
[[Category:Guides]]
* If the entrances are very far from where the enemies approach from, they might choose to attack your wall instead.
 

Latest revision as of 21:44, 24 April 2024

Getting attacked, whether by tribals, pirates, hordes of angry animals or by something more alien is a common event in the rimworlds. Defense against these attacks is one of the keys to having a successful colony.

This page details different tactics for defense and visualizations of them, applicable to most stages of the game.

Core battle tactics[edit]

No matter what sort of defenses you use, these battle tactics may be useful.

Melee tactics[edit]

Melee soldiers are a useful asset in your colonies, if used correctly. They can disrupt ranged enemies, because being engaged in melee interrupts and prevents ranged attacks, and staggers the enemy thus slowing movement. Ranged enemies are also forced to fight back with makeshift melee attacks with their guns, which are woefully inadequate against a dedicated brawler.

In addition, melee soldiers can fend off invading brawlers charging into your lines, or beat up drop podding enemies.

Shield belts and good armor are usually necessary for your colonists to close the gap between you and the enemy. Melee attackers without the protection of shields are highly vulnerable to gunfire, even if heavily armored. Before battle, hide your melee attackers until all enemy melee attackers are engaged in battle, or put them in line in front of your gunners for quick deployment and damage absorption.

Friendly fire is a serious issue in hand-to-hand combat, as you can easily hit your own fighters. While it is still a bearable problem if their shields are up, once the shields are down you will need to manually retarget to prevent friendly fire.

Melee sortie[edit]

This tactic involves using a small element of melee colonists to charge enemy ranged attackers and take the heat off your own gunners.

Can be used to take down annoying long-ranged snipers or small gunner groups. Note that charging at entrenched ranged attackers can also divert their attention from your own entrenched forces to your charging brawlers.

Melee rush[edit]

Melee rushing is the tactic of sending your melee attackers to engage hostiles all at once, rather than focusing on shooting them down or sending small parties to take down troublesome enemies.

Melee rushes can work alone, especially with quality equipment; well-equipped melee rushes can hold off an attack and cause raiders to flee despite being slightly outnumbered. They also attract a great deal of friendly fire from the enemy, as they try to shoot down your brawlers, hitting their allies in the process.

If you aren't afraid of friendly fire, it can be combined with a firing squad from a distance for devastating effects. The brawlers cause chaos within the raiding party while the firing squad lays fire to destroy them while the raiders are trying to cope with your brawlers.

Note that enemy melee rushes are not to be countered by your own melee rush; there is a much more effective tactic detailed below.

Peeling[edit]

If a vulnerable gunner is under attack by melee attackers, you can 'peel' them away using your brawlers. Have them engage the melee attackers, who will then focus on your brawlers, allowing your gunner to get to relative safety.

Trained animals automatically peel for their assigned masters, if 'Release animals' is Off. The animals will attack any hostiles coming close rather than straying off to attack distant targets.
Setting 'Release animals' to On right when another colonist in distress near the trainer causes the animals to swarm the attacker, peeling them off.

Peeling is a relatively high-risk activity, as you are trying to put a pawn at risk in return for allowing a pawn at greater risk to escape. Peeling pawns should be expendable or decently armored.

Self-defense[edit]

Even though they aren't as good as dedicated melee weapons, guns still hurt in melee combat, even surpassing some low-quality melee weapons. This allows shooters to have a fighting chance against melee enemies.

Shooters can fight off small animals quite easily with melee, so have them fight back instead of letting the animal chew them to death.

Melee attacks with guns are a viable alternative if your colonists are adept at melee combat and the guns don't fare well at touch range. Since they don't usually emerge victorious from a 1v1 melee fight unless there is a massive skill gap, have someone else join in the fray, be it a brawler or gunner.

Body blocking[edit]

You shall not pass.

Enemies can be physically blocked by colonists or animals, denying them access to locations. This can be done to a significant tactical advantage.

Heavily armored soldiers are needed to body block active combatants, as they will take a lot of hits while blocking, and even so they will eventually collapse due to sustained damage. They should also be able to deal good damage at point-blank.

Blocking can be used to slow down prison breaks, seal off escape routes for enemies, or more aggressively to devastate melee only raids, detailed below.

You can avoid heavily injured pawns just by invisibilize your pawns continuously, they will still be blocking enemy drafted pawns in hallways but cant get retargeted. But you have to pay attention, a freshly invisible pawn does not lose the agro of enemies. As an example, if your pawn gets in the door and get targeted by an enemy equipped with a doomsday, the doomsday will be shot at the invisible pawn, there are some ways of breaking the targeting process such as loss of vision, and any kinds of jumps or teleportation.

Melee blocking[edit]

When faced with a full melee attack, instead of engaging enemies on the frontline, retreat behind your walls, and open doors to use as chokepoints. Leave up to three melee brawlers standing right behind (not in) the chokepoint to block enemies while cutting them down, stationing more nearby as replacements, and gunners behind to fire on the blocked intruders. This forces melee enemies to trickle in and fight with your soldiers one-by-one, making them significantly easier to dispatch of. Make sure all brawlers are heavily armored to block damage, and shielded to block friendly fire.

This is a horribly effective way to defeat melee attacks. Compared to a regular frontline defense, this tactic significantly reduces the casualties your side will sustain. You also don't need to build anything special for this purpose- any opening or door in the wall will do. If you use killboxes then it's best that you build it in a way such that melee blocking attacks can be conducted effectively inside.

Weapons[edit]

For maximum pain, use high-DPS guns for your backline for bringing the hurt, combined with quality melee for your frontline to deal sustained damage in between barrages.

  • The chain shotgun or heavy SMG are the weapons of choice in this situation due to their unparalleled close-range DPS.
  • Miniguns, while effective at shredding the tightly packed enemies behind the chokepoint, are generally not recommended due to the collateral damage to the walls. If you do choose to use them, aim at the middle of the crowd so you can hit as many enemies as possible, while also reducing the damage done to the walls.
  • Grenades may also be used and can be incredibly effective at stacked melee groups trying to enter through a chokepoint, but should be ground-targeted rather than freely targeted by the pawn, to avoid grenading your own melee blockers. Grenades can land anywhere within 1 tile of the targeted tile, so place your ground target 1 tile further away to avoid accidentally grenading your own forces or blowing up the walls that are enabling you to melee block. Like miniguns, this will often shred the walls of your chokepoint, so building extra layers of walls at the chokepoint can be helpful.
  • Pawns, both friendly and hostile, cannot stop and stand on top of sandbags, and are substantially slowed while moving over them. This can be used to force targets into a particular tile or slow the progress of an incoming force.

Stray bullets will not harm your tanks if the shooter is not standing too far behind; that means it is not a good idea to use long-range fire.

Combined with measures to force enemies into close range, it may be effective against ranged enemies as well, but beware as enemies can still fire until you start beating them up.

Animal Melee Blocking[edit]

Animals can be used as a form of melee blocking by creating a zone for just the single tile immediately in front of the chokepoint or door and assigning a bunch of animals to it. The animals prevent hostile attackers from traversing through that space, and the animals will generally counter-attack en masse anything that attacks them. This often results in substantial injury or death to animals, of course, so ensure the animals used are expendable (ie. not bonded or otherwise critical to the colony), and don't use explosive animals like Boomalopes or Boomrats. This is most effective against non-human threats such as manhunter packs and insectoids.

Spacing out[edit]

Each colonist should ideally stand at least 1 tile away from other colonists, thus reducing the chance of enemy bullets hitting somebody else after missing the original target, which deals a lot of damage to static grouped up defenders.

Explosives will also hit fewer people this way, though there are better countermeasures than simply spacing defenders apart.

Dealing with rockets[edit]

Rocket launchers are painful to deal with, due to the huge area damage and long range. In the mid-late game they are one of the biggest threats from the enemy.
The best way to deal with them is to distract them to fire elsewhere, in order to greatly reduce the amount of damage received.

Raiders with rocket launchers are often seen in the backline preparing their rockets, while their allies lay down fire at the front. They get distracted quite easily, wasting them on animals or lone colonists. This can be exploited simply by charging them with single units, which will cause them to fire it towards them and away from the rest of your forces. They may fire at point-blank, injuring themselves and their comrades, or with some luck in positioning and fast melee units, you can even intercept them before they can lock on with their rocket launcher, forcing them into hand-to-hand combat and eventually yielding the launcher which can be captured for future use.

This is a high-risk but necessary move to take, and some pawns may need to be sacrificed.

For successful distraction, you have to make your charging units the only available targets for them to consider attacking. If they have a better target with less possible friendly fire, they may attack them instead. To combat this, have all your other units, including animals, stay completely out of range until the rocket launchers have been neutralized.

Psychic insanity lance[edit]

Using a psychic insanity lance on a raider will cause their allies to waste rockets on them. Often, this gets rid of all of the rockets in a raid, and also causes a lot of damage. Psychic lances can generally be used from relative safety, due to their extensive range (though they do require line-of-sight to the target), and have a relatively low cost. Targeting the most durable raider will help make sure as many rockets are wasted as possible.

Shielded unit deployment[edit]

Deploy brawlers equipped with shield belts and heavy armor, letting the shields block the blast as well as some fire. There are two variations of this:

  1. Move in a zigzag pattern in front of the enemy to draw their attention, and dodge the rockets when they are discharged.
  2. Directly charge into the fray with your shielded fighters, such that any rockets fired at them will likely hit other enemies as well.

Be prepared to sacrifice someone, as their shields are very likely to be broken whether by the blasts or concentrated gunfire.

Expendable animal charge[edit]

Have animals that are both expendable and fast charge the enemy, rocket soldiers included. It's especially good if the animals can survive a rocket blast, as it allows them to continue distracting any further rockets.

For multiple rocket launchers, send animals in batches, such as by assigning animals to different handlers and setting them to attack at different times, to prevent them from being wiped out by a single blast.

While they do not need to be obedience- or release-trained, as you can use animal area zones to force them into areas, doing so is less effective as animals have a delay before moving into their assigned zones and may be very far away.

Friendly fire with rockets[edit]

Besides being caught in a blast, enemies can also take friendly fire if the rockets impact them instead of your colonists.

You can increase the chance of this happening by having the rocket travel over as many enemies as possible through aligning your distractors. Each rocket traveling over a pawn has up to 40% chance to impact, setting it off early.

If you see that an enemy rocketeer has locked onto a brawler, you can also choose to charge the enemy with that brawler. It will either cause the enemy to deal immense friendly fire, or allow you to take out the rocketeer outright.

Killbox tactics[edit]

Rockets are much more dangerous in a killbox where colonists and turrets are closely bunched together. If you're unlucky, a rocket will set off turret explosions, causing additional damage. Rocketeers are a priority target that need to be rapidly eliminated as soon as they enter.

However, killboxes do provide 2 crucial advantages: range restriction and concentrated fire. This allows you to direct concentrated fire onto the rocketeers to neutralize them rapidly.

Rescue[edit]

When a colonist is downed or severely injured, it's best to drag them out of the fight immediately. Don't leave them there otherwise they risk dying from stray bullets or blood loss. You don't really need to send them directly to hospital; just drop them off somewhere outside of active combat.

Colonists lying outside cover are riskier to rescue. Choose the right time to pull them out, ensuring that there are no melee enemy nearby that could tie up the rescuer, and use your best-protected colonists. Don't allow anyone near at other times as they may draw fire. Consider drugging your rescue team with go-juice if the pawn you are rescuing is under heavy fire, as this will both increase the rescuer's speed and improve their pain resistance, making them less likely to be downed. Using a jump pack Content added by the Royalty DLC to rapidly jump in and pull them out of combat, with the i-frames incurred during jumping, makes this significantly faster and safer for both rescuer and rescuee. Locust armor Content added by the Royalty DLC can be substituted at the cost of armor, but ideally should be paired with a shield belt to make up it. At high qualities, for the short duration of exposure, a shield belt can be superior as it prevents all damage, including that which would slow the pawn or reduce medical skills.

Non-combatants, such as those incapable of violence, are ideal to serve as rescue members by standing near a fight to pull out downed colonists. Non-combatant doctors should wear a shield belt and carry quality medicine at all times, so they can be drafted during combat and quickly tend to wounded colonist on the field. Non-combatants should be equipped similarly to above, though with no ranged weapons they have fewer restrictions on wearing a shield belt to prevent damage, and their value proposition improves.

If a colonist cannot reach the hospital in time, typically ~2 hours from death or less, have the doctor patch colonists up a little such that they can reach the hospital without bleeding out, then carry them there. You will have a higher infection chance this way, but it's better than the colonist bleeding to death while on their way to the hospital. The remaining injuries can then be treated in the cleaner environment. Alternatively, an untuned biosculpter podContent added by the Ideology DLC can be kept nearby and the injured pawn loaded into it. This can save pawns moments from death, that a doctor could not treat fast enough to save. The cost of the pods can be considerable however, and they must be de-tuned or deconstructed and reconstructed after each event.

Friendly fire management[edit]

Friendly fire is a serious issue when facing close-range attackers, especially manhunter packs. If they manage to run past your barrage of gunfire to engage your ranged soldiers, they may receive more injuries from friendly fire in the ensuing chaos than the attackers themselves. You need to be careful when directing your troops so you don't hit your own forces by accident.

Pawns can fire over the shoulders of friendlies up to 2 tiles (i.e. 1-tile space in between) away, meaning that you can have a 3-wide row of soldiers without friendly fire, which is not recommended.

  1. When the enemy breaks the ranks, only let the soldiers closest to melee attackers fire at them.
    • Manually re-target the others to fire at another direction, repositioning them if needed.
  2. Disable 'Fire at will' when the enemies are closing in so they won't switch targets, potentially causing friendly fire.
  3. Have only 1 line of shooters so stray bullets, including bullets fired horizontally at melee attackers, will less likely hit someone.

Firing at cover[edit]

While cover works best against attacks coming straight, it's usually better to fire straight at the target instead of from an angle. If you fire straight at it, only 1 unit of cover will be effective, but if you shoot at a diagonal angle, 2 units of cover will be effective, both being capable of blocking shots, in total contributing to higher cover effectiveness.

However, if you can get to the point where you're almost firing horizontally at the raiders, then cover becomes nearly ineffective at protecting the raider, allowing many more shots to connect. This often requires you get out of your own cover, so it's not recommended unless you can find suitable cover nearby.

For skilled medium-long range shooters it's best to shoot from a great angle to hit them from the sides.
However for not-so-good or short ranged shooters it's better to directly fire at them instead as the extra distance will make it harder to land hits, or cause the raider to exit firing range.

The below shows the difference firing angle makes on the hit chance of a pawn hiding behind cover. Cover values are from Alpha 16, but the mechanics remains unchanged.

Mobile warfare[edit]

Flanking and Surrounding[edit]

To flank enemies, have some defenders approach enemies from the sides or the back instead of concentrating fire on the front. To surround them, attack from all sides.

Enemy ranged units often stay in the same spot when engaging your colonists, and they tend to have effective cover facing one direction only, making them vulnerable to flanking. Flanking enemy ranged units can distract them and cause them to lose their cover advantage with attacks coming from multiple sides. While this makes you lose the advantage of high-quality cover, it is balanced out by the enemy's loss of cover.

This works best against entrenched ranged enemies attacking you from one side. They should be occupied with attacking frontal targets so you can creep up to them to unload lead on them from another angle. It's even better if you pair with melee to tie them up, buying time for your soldiers to get into position and preventing them from moving into new positions.

Rounding up any fleeing survivors also becomes easier if you have someone (especially melee fighters) blocking off escapes from behind.

Moving in[edit]

While moving in you need to make sure you stay far enough away from enemies, and directly right-clicking on the destination will nearly always result in a path that crosses with the enemy.

This can be overcome by shift-clicking to form a path for the pawn to follow, making sure to keep sufficient distance.

Shield belts, drawing enemy fire from a different direction, or simply using walls and terrain to block projectiles are all good ways to move in.

Wide arc flank[edit]

This tactic is about scattering your fighters in a wide arc facing your enemies. Rather than huddling together behind continuous lines of cover such as lines of rock chunks, each soldier should be taking cover on their own, and be able to shoot straight at the enemy without anyone else in between.

This gives more flexibility in positioning as well as greatly reduced vulnerability against explosives or collateral damage. Engaging your flankers also results in enemy fire being scattered, so focus fire won't take down anyone easily.

You can deploy shielded colonists to draw fire effectively from your gunners, though they need to be arranged carefully so as to be able to tank without taking friendly fire.

Perfect against preparation raids or in-construction siege camps when you can't use your static cover and they won't directly attack your base upon arrival. However if the enemy has a significant cover advantage (such as sandbags) then this tactic may not work out in your favor.

Tanking[edit]

This tactic simply requires you put your shielded colonists before your static gunners to partially soak up gunfire. This is best when you have insufficient cover, or additional cover to block more bullets for your frontline tanks.

As with any tactic involving meat shields, this poses a great risk to colonists' lives. If the colonists' shields are downed and they are not well-armored, you will have to get them to retreat behind cover until their shields come back online, otherwise your colonist will be exposed to ruthless gunfire.

Beware of high damage-per-hit weapons which can instantly down shields.

Hit and run[edit]

Against slow or static targets you can employ this to weaken them. You will need several fast-moving long-ranged colonists, possibly with charge lances or bolt-action rifles. Have them move within range to fire, quickly exiting range once the enemy returns fire. Repeat until conditions are no longer safe to conduct this attack, such as enemies entering full aggression and charging.

Effective against siege camps and preparing raiders for they tend to stay put at their location until they are aggravated into attacking.

Kiting[edit]

This tactic is effective when all or the most dangerous enemies are slow moving.

Ideally, you have fast colonists - 120%+ Moving - running near moving enemies, drawing their attention. Constantly outrun the enemy while staying within their attention range. If not, the enemy will engage other targets instead. This way, kiters can distract a group of enemies by leading them around the map. Other colonists can fire at the kited enemies. And if the kiting colonist is fast enough, they can take a few potshots (once they are far enough).

As long as your colonist safely outruns hostiles, you're fine. However, if the enemy catches up, your colonist will be slowed and on his own. Even with a regular speed colonist, kiting can be beneficial, as it gives valuable time for your ranged colonists to shoot.

Equipment[edit]

A fast, long-range weapon is safest - e.g. the assault rifle or bolt-action rifle. A fast moderate-range weapon (e.g. machine pistol) may be used against melee enemies, but is riskier. Slow weapons such as sniper rifles are not recommended, as the need to stand still for extended periods puts soldiers in grave danger.

Kiting colonists should be lightly armored while still maintaining a fast speed.

Additional tactics[edit]

Baiting[edit]

Faster, more well-protected colonists can be used to lead enemies into traps or ambushes. This is for situations when you have defenses concentrated in one direction, but the enemy comes from another.

Setting the bait furniture on fire only hastened this raider's demise.

Cheap furniture also makes good bait. Raiders will smash any player-built furniture left out in the open, such as tables or wooden stools. This can be helpful to split them up or lure them into range of your defenders' weapons.

Luring in[edit]

Enemies can be lured closer to your base by keeping your colonists out of sight, then swarming out to attack once they draw closer to your base. Afterwards they will switch to engage your defenders.

This can be used to negate the range advantage of enemies. It also works well with melee blocking to lure enemies into trying to jam themselves into your chokepoints, rather than beating up your base.

Animals[edit]

The animals on the map, tamed or not, can be used to your advantage.

Tamed animal release[edit]

With your handlers, you can amass a huge army of animals to charge the enemy. Simply find a good combat-capable animal, tame it, and train it to learn Release.

There are many animals that are good for this purpose. Main tactics are take quality vs take quantity.

  • Large animals like Thrumbos, elephants or rhinos have good DPS and their large health scale means that damage is less likely to kill them before they can get patched up by your doctors. However they are harder to tame and very hard to keep a big amount. Replenish losses for a long time (especially Thrumbos). Due to smaller amounts, in case of big raid, they can block only few gunners and will sooner be downed by others.
  • Wargs and bears offer a good balance of DPS, breedability and feasible number to keep (can eat bodies of raiders). Better block large number of gunners.
  • Huskies significantly less DPS than the others, but are easy to breed, feed, and provide hauling. Can block big raids.
  • Dryads don't need food, training, breed and can self-heal. Colony only need to maintain trees. Clawers are the best choice for meat attack, while barkskins for tanking. Use separately: clawers are faster than barkskins, and barkskins will not perform their main duty.

Tamed animals also cause pirates to fire near their allies in a bid to get them off their allies, potentially causing friendly fire.

Strategic zoning[edit]

Raiders take their sweet time to exterminate any trace of your tamed animals on the map. This can be exploited to your advantage, as long as you're willing to have a few animals valiantly sacrifice themselves.

  • Distraction: If you let your animals run all over the place, raiders may be tied up trying to wipe out the animals. This can give your colonists time to prepare, such as entering defensive positions or running to your mortars to fire a few rounds, as well as scatter the raiders making them easier to deal with. Raiders wielding rocket launchers also tend to waste them on your animals, leaving your colonists and structures mostly unharmed. However if they see better targets they will come at them instead.
  • Direct offense: Besides distraction, animals may also engage raiders, harming or killing them.
  • Manipulation: Animals can be moved around without the need of training Release, simply by changing the allowed zone of your animals. A short time later, the animals will move towards the zone and stay there. When animals are sleeping you can put animal sleeping spots beneath them and then remove them to wake them up. Changing the animal's zone also immediately forces it to move, at high speed, if they are not in the area of the new zone. This can also be used to update an existing zone's area by changing the animal to a different zone (which they aren't in the area of) and then back to the original zone again. Untrained animals will flee from threats, but will fight back to defend themselves if they are damaged by a hostile.
    • Aggressive zoning: Zone animals in a place where you are expecting an encounter with enemies. Enemies will notice the animals and will start attacking, making them fight back and injure or even down the attackers. This method works for any animal, even those that cannot be trained. Remember to undo the zoning otherwise the animals may starve. Boomrats are especially useful by causing explosions, setting raiders on fire and delaying their assault.
    • Animal chokepoint: Zone the animals in a chokepoint, creating a dense cluster.
      • This is vulnerable to AoE weaponry so increase the area of the zone to make it that animals don't get too tightly together, if the enemy has explosives.

Aggravating animals[edit]

If you have any easily enraged wild animals (emus, thrumbos, etc) standing near the enemy, you can shoot them to anger them and make them charge at the enemy.

You can also opt to enrage an animal then have a fast colonist (>130% Moving) lead it towards the enemy. Some enemies will stop and engage the animal, potentially causing it to switch targets. For quite the obvious reasons it's best to equip a shield belt on the kiting colonist if he isn't the one enraging the animal.

For this, larger animals are best due to their high health and damage. A thrumbo can be considered a godsend in a raid; just send 1 straight into the raider hordes, and let 'er rip.
Smaller animals are faster and hard to hit, making them decent distraction and causing a hefty amount of friendly fire among the enemy as well.

Remember, if you can down the animal easily with colonists, so can the raiders.

Similarly to this, a Manhunter pulse on a flock of wild (or tamed but not trained) animals can wreak havoc on raiders, just make sure that your own pawns are too far away to be targeted. It may make sense to have some fenced-in pastures at the edge of the map for this very purpose.

Meat shield[edit]

The animals surrounding a handler can be used as a convenient meat shield as they take bullets, arrows and other projectiles (but not explosions) for their master. Provided they don't stray too far, they won't receive friendly fire as the shooters simply fire over them. All you need is to train Obedience, instead of Release.

Slaves with shield belts are also a good sponge for bullets. New meat shields can be obtained from survived and enslaved raiders.

Base scattering[edit]

This is a last-ditch tactic to defeat humanlike enemies if you are significantly outnumbered.

Instead of engaging them right away, let enemies scatter around the base first. After they scatter widely apart, divide and conquer, using large groups of soldiers to overcome them with ease, while others are busy demolishing other parts of your base.

Remember to patch up the base after the damage done. Coolers are especially tricky as they serve as weak points and are expensive.

Outside help[edit]

If the storyteller is feeling somewhat merciful, outside help may come to save the day.

Don't count on this however, as these rarely happen on their own, and most of the time you still need to fend off the raiders yourself.

Friendly reinforcements[edit]

Occasionally while hostiles are on the map, a friendly military caravan will come to bolster your defenses. The threats may also coincide with friendly trade caravans, visitors or passersby, who will help to engage a common enemy.

This requires you be already allied with some factions, so that they will send help of meaningful value; otherwise they may just send a few people who will quickly get downed and serve no purpose other than distraction.

Besides actual assistance, traders may also come with around 550 - 1000 points, enough to hold their own against a smaller raid. This allows you to have decent fire support around half the time, simply by calling in 1 trade caravan once every day (assuming alliances with all 4 non-pirate factions). It costs goodwill (or silver pre-0.19) but allows you to trade, as well.

You may also call for additional help from allied outlanders at a cost of -20 goodwill (tribals are unable to send help due to technological limitations). This can be repaired by diplomatic gifts, or rescuing and treating downed friendlies.

Common enemy[edit]

If mechanoids, manhunters or another enemy faction show up, raiders may stop to engage them. This causes losses to both groups of enemies, making it easier to pick off the stragglers. Being concurrently raided by two different enemies at once is more common during the ship reactor start-up phase, making it slightly easier to survive the onslaught.

If there are unopened ancient shrines you can open them, which may contain artifacts, mechanoids, confused spacers, all useful against raiders, or none of the above.

Using the psychic animal pulser or the Manhunter Pulse psychic ability is essentially invoking this tactic, but you need to be very careful when using it.

Environmental hazards[edit]

Very rarely, when unable to put up a proper fight, you can count on Mother Nature to play for your side. Invaders will come to you without proper protection against the weather. You will be able to fend off the attack without confrontation.

Choosing to play on an extremely hot or cold map, such as in a sea ice biome near the poles, seals the fate of all raiders foolhardy enough to come.

Humanoid assaults[edit]

Raiders[edit]

"Raiders" come in a wide variety of sub-types, and with a surprising variety of tactics. But they all need to be explained the error of their ways...

Behavior[edit]

Raiders will attack randomly chosen constructed objects, colonists and colony animals. They will not attack natural rock walls (except for sappers), non-hostile wild animals or unpowered turrets. They will attack prisoners if they are captured from their enemy factions.

They usually set fire to crops in growing zones, power generators, power conduits, and other production buildings. They will melee attack furniture, doors and walls. They will also use thrown explosives on structures, and some use EMP grenades to stun your turrets.

Raiders will prioritize firing on colonists or turrets that are actively engaging in the fight, but will otherwise attack random objects.

If humanlike non-mechanoid raiders are unable to defeat your colony in time, they may give up. Normal raiders will give up between 26,000 ticks (7.22 mins) to 38,000 ticks (10.56 mins) after the raid begins, while sappers will give up between 33,000 ticks (9.17 mins) to 38,000 ticks (10.56 mins) after they begin the attack.

Preparation[edit]

Humanlike raiders will sometimes start by standing around in a group where they spawned and will continue this until they lose a certain amount of raiders or they hit a certain preparation time limit, at which point they begin the assault. When a colonist is close to the raiders they will attack the colonist.

Equipment[edit]

Raiders spawn with randomized equipment determined by their "pawn kind". While the budget for "purchasing" each individual of the different pawn kind is determined by the storyteller and the current raid points value, the equipment itself is decided by the weapon and clothing budgets and type restrictions of the pawn kind. More information on the pawn kinds can be seen in the Pawns sections on each factions' page.

Apparel[edit]

Pirates can range from only wearing a tattered pair of pants to flak vests to full sets of marine armor. Mercenary slashers will always come in shield belts and only they do so.

Tribals always come in tribalwear, with some in war masks or veils. Some later game come with plate armor as well.

In cold environments, both will come in wearing parkas or tuques, protecting them from temperatures of around -40 to -50°C, sometimes up to -110°C if they wear wool parkas. They don't usually come in wearing dusters or cowboy hats in hot areas, making them vulnerable to the heat.

They tend to wear leather, cloth or synthread clothes, which don't provide good protection, and less commonly the more protective devilstrand or hyperweave.

While mid-late game pirates usually come with normal quality flak and marine armor providing around 100% sharp armor, with quality apparel you can push yours to have more than 130%, even without masterworks or legendaries, giving you the upper hand.

Weapons[edit]

For most factions, skills are assigned at random, meaning that raiders are not always given weapon appropriate for their skills; skilled shooters can be randomly equipped with melee weapons and melee pawns equipped with guns. So if you have your colonists equip weapons according to their skills, you already have an advantage over many enemies. Unlike the other factions, the EmpireContent added by the Royalty DLC will ensure that its soldiers have skills appropriate for their issued weapons.

Tribals usually come equipped with primitive weapons of random quality, either melee weapons or ranged weapons limited to bows and pila. Melee weapons are not to be underestimated however, as blunt armor is often lacking and both longswords and spears are relatively common and have respectable AP.

Pirates and outlanders can spawn with most weapons in the game, up to and including dangerous doomsday rocket launchers.

However, some classes of raider always come with the same weapon or same category of weapon. For example, mercenary snipers always use sniper rifles, grenadiers always wield either frag grenades or molotov cocktails, and tribal archers of all types always use neolithic ranged weaponry.

Drugs[edit]

Pirates or Outlanders may utilize some form of combat-enhancing drug, namely go-juice, yayo and luciferium. They will usually start off addicted to them, and will carry some in their inventory which is dropped upon death. They may also use multiple drugs, disregarding the risk of overdose.

These can reduce the amount of the pain received, making the raider last longer in battle before going down. Increased movement speed also allow raiders to get into position earlier, and brawlers to harass your defenders more easily.

  • Go-juice is an excellent combat drug that makes the raider much more efficient in battle. It eliminates 90% of pain, gives a 30% movement speed buff, and a 10% consciousness buff for more accuracy. The raider is almost guaranteed to fight until death, or the rarer case of incapacitation through a shattered spine, severe brain damage or removal of both legs.
    • It's almost always more worth it to use body part-destroying weapons such as the Sniper rifle to kill them, as Go-juice does not reduce the actual damage they take.
  • Yayo grants a 15% buff to speed and eliminates half of pain received. Enemies under the effect of yayo are more durable against damage not concentrated on a vital body part
    • It will take more hits to down them, and more likely the raider dies first due to lethal damage, but is still possible.
  • Luciferium grants a wide range of buffs to the user, from increased organ function, to slight movement speed and consciousness buffs, to reduced pain.
    • It's more troublesome to capture addicted raiders since you'll need to regularly feed them luciferium to sustain their lives, which is very expensive and hard to come by -- it's usually more worthwhile to just strip and finish them on the spot.
    • Although it is possible to farm this drug by addicting raiders to it and release them, the next time they come they will bring some with them.


Sieges[edit]

During a siege, raiders go to a location outside your base, receive materials via drop pod and will proceed to build a simple mortar camp. The mortar camp will generally have 2 mortars and sandbags as cover. The sandbags need not cover the mortars, nor will they necessarily face your base.

When faced with a siege, there are a few strategies you can use.

In most cases it's better to attack the siege camp as the raiders will continuously siege the colony even if you're in hiding, and most likely you will eventually need to face off against the raiders yourself.

Camp assault[edit]

If you assault their camp, one possibility is sniping the raiders, prompting them to assault your colony directly instead of continuing their siege once you down several of them. Defeating them early enough will result in most of their items remaining intact, which you can take for yourself.
Another alternative is to snipe the mortars, hoping an explosion will take out many raiders, but keep in mind that for those you will need to either send someone dangerously close to enemy fire, or draw all attention to one side to allow flankers to snipe and detonate them.

Unlike most defensive situations, this time they will have the advantage of good cover on their side. You will have to find suitable cover, such as rock chunks, which you can fire from.

Sniping mortars under construction, when they have much lower health, is effective at wasting the enemy's resources.

They are vulnerable to flanking if they haven't finished their sandbags or left a side uncovered. However, once all cover is completed, flanking is less of an effective solution.

Early interception[edit]

The best time to attack them is when they've just started building their camp. At this time their resources would have arrived.

Attacking them at this time forces them to use rock chunks just like you do, instead of having the superior sandbags on their side. Their mortars won't be ready as well.

Attack only when their resources have arrived, otherwise they will flee and not send any resources, which you could've stolen had you attacked later.

Hit-and-run[edit]

An effective tactic to lure sieging raiders out is to conduct hit-and-run attacks against them. Taking down someone usually causes them to give up on sieges and directly attack, making them lose their cover advantage.

Countering with mortars[edit]

If you have your own mortars, you can use them to fire back at the raiders. The raiders will stay put to defend the camp, making them easy targets for mortar strikes. It's best to wait for the raiders to arrive at their siege encampment location so leading the target isn't required.

High-explosive shells deal heavy damage to tight groups of raiders if they hit, ignoring all cover but solid walls in the process. A tight volley can devastate mortar camps, forcing them to either attack or flee outright. Waiting for their supplies to be dropped gives you the possibility of causing their own mortar shells to explode on them causing significant additional damage.

Incendiary shells are an effective way of distracting sieges as the raiders will be preoccupied with extinguishing the resultant flames. 2 mortars are usually enough to keep them from doing any activity other than firefighting, unless it is raining or there are no flammables nearby. This deals little damage to them, however.

EMP shells can stun the mortars, preventing them from firing. It is perhaps better used as a support weapon while your defenders assault the camps, to reduce the damage done to your base.

Sneak attack[edit]

If you don't have the strength to attack directly, you can wait for them to sleep at night, then use the opportunity to set your colonists into position for a sneak attack.

Once someone receives an injury, everybody will wake up, so be sure to have everything in place.

  1. Get within range and throw a coordinated barrage of frag grenades at the enemy, blowing the defenseless raiders to bits.
  2. Go very close (no more than 3 tiles) then unload your guns on the exposed raiders. Nearly every bullet will connect, dealing heavy amounts of damage upfront.
  3. 1 well-aimed doomsday rocket launcher can end the siege easily. While also effective at day, it is much safer to approach at night, and the raiders will also be more tightly packed.
  4. Send brawlers straight in, beating up dangerous enemies like rocketeers first.
  5. Steal their supplies and wait for them to send more. Free food and mortar shells!
  6. Scatter chemfuel canisters around the camp, pick up shells and survival meals. Retreat. Load one incendiary round into your mortar. Do one shoot, enjoy the popcorn.
  7. Burn the enemy with fire, a task made much easier while they are off-guard. This will eventually force them out to attack after suffering from heavy losses.
    • Lighting the mortars on fire allows them to be destroyed with ease.
    • Surround the camp with fire. Upon waking up, they will put forward their futile efforts in controlling the raging sea of fire around them, eventually giving up and attacking.

Deep tunneling[edit]

Mortars cannot hit anything that is under an overhead mountain. This makes deep mining a effective defensive strategy against heavy bombardment. If you don't build your base into a mountain, you may at least consider digging out at least one panic room for non-combatants to hide within from the shells while others head out for the assault.

Firefoam shell jamming[edit]

Enemy mortar filled with a firefoam shell, demonstrated by reddit user u/xenoxaos.

An interesting way to nullify the threat of a mortar attack is to launch a transport pod filled with firefoam shells to a location closer to the mortars than the shells they brought with them. When the shells arrive, the enemy will load them shells into the mortar instead. This means that the damage to your base will be much reduced, as firefoam shells do little damage beyond damaging roofs.


Shielded melee charges[edit]

Full melee charge at the edge of the map, with everyone shielded and equipped with melee weapons.

Pirates or Outlanders can come with all-melee charges, with most enemies wearing shield belts. This can prove a threat to ranged-reliant defenses as they charge towards the colonists directly with their shield belts blocking large amounts of damage.
While they are vulnerable when their shields are down, many can still reach your colonists and engage them in melee combat.

Melee blocking[edit]

The Melee blocking tactic is especially useful here; for better effectiveness, open multiple chokepoints to spread out enemies and keep them busy trying to squeeze in, otherwise they will get bored and wander off to attack other things.

Shields don't stand a chance against concentrated fire poured down a narrow entrance. Using EMP Grenades or EMP Launchers can entirely disable the enemy shields, making mowing them down much easier, but ensure you don't accidentally short out the shields of your own melee blockers. It's best to order the grenadier or launcher wielder to attack a specific ground point rather than letting them freely select their target, as they may try to grenade a target right next to your own melee blockers. Both grenades and launchers can deviate by up to 1 tile in any direction from the targeted square, so take that into account when selecting your aiming point.


Sniper party[edit]

Raiders can come using only sniper rifles, giving them a very long range but low overall damage.

The danger comes in that if you engage them conventionally, you may need to exit your quality cover, removing your cover advantage.

Sniping them back is not recommended unless you have a surplus of skilled snipers and cover.

Luring in[edit]

Instead of engaging them on the frontline, you can keep everyone out of sight, then rush out only once they get close to your base, negating their range advantage.

Killbox[edit]

A well-designed killbox can entirely negate any advantage that sniper parties field. Critical to that is ensuring that line of sight is entirely blocked for incoming attackers until they are in range of your own forces, preventing them from being able to take cover once inside the killbox, and using sandbags to force them to walk (slowly) while already under concentrated fire without being able to return fire.

Heavy explosives assault[edit]

Enemies may come in mainly equipped with area damage weapons, such as rocket launchers, grenades and miniguns. This can cause serious damage to your base, your colonists, and the raiders themselves.

The main danger, as always, is from the rockets. The ideal method is to distract them from the main defending force, not only reducing damage taken by friendly forces, but also increasing friendly fire the enemy takes. The fact that so many of the raiders have rocket launchers means that friendly fire can be so serious that the raiders will decide to retreat to cut losses by friendly fire alone.

Due to the wide use of explosives, cover is less useful; you would benefit more from flexibility in positioning rather than protection from cover. Space out your defenders, preferably far from your base structures, while giving them enough space to move around to evade attacks.

Distraction[edit]

If you have many tamed animals, you can zone them near the raiders, who will be distracted to fire at the animals with rockets. Enemies are much more likely to receive friendly fire when firing towards your animals right next to them.

Grenadiers[edit]

Besides rocketeers, many of the enemies will also be grenadiers, which are short-ranged and are thus vulnerable to fire from a distance. Once the rockets have been taken care of, you can shoot them down with concentrated fire quite easily. Make sure to dodge the grenades if they do close in.

All-in melee charge[edit]

You can go hardcore and send in all your shielded brawlers to go straight at the enemy rocketeers. Gunners should stay out of range of rockets until all rockets launchers have been used.

This is especially effective when they come in to chase a refugee, leaving you enough time to position your brawlers deep into the enemy.
At any rate, expect losses this way due to the concentrated explosions.

Base flank[edit]

Besides sending one large attack party, enemies can also split up their forces and attack your base from multiple sides.

To adequately defend against this sort of attack, you may need to split up your own defenders and fight several battles at once, thus increasing the difficulty of managing the battle.

Each of the individual groups will flee on their accord.

Divide and conquer[edit]

If the enemy decides to prepare before attacking, you can afford to send out a larger attack party to eliminate the groups one-by-one.

Sappers[edit]

Sappers will mine and blast their way through any obstacles, such as natural or constructed walls, though avoiding high-health ore veins. They will also try to circumvent your defenses to attack from another direction. Their goal is to reach one of your bedrooms or barracks, where they will begin to wreak havoc.

In an open base, sappers can usually be treated as a weaker-than-usual bunch of raiders. However, they are a great threat to turret-reliant, mountain or walled bases, including bases with killboxes.

Their grenadiers and miners deal heavy damage to structures; even the toughest plasteel walls will not stop them for long. They will also persistently try to tunnel into your base, continuing even if their digger is killed or they are under attack.

Turret funneling[edit]

It is possible to funnel sappers with unpowered turrets, since sappers will avoid entering turret radius. Note that this doesn't appear to work to funnel sappers into killboxes.

Early interception[edit]

With enough manpower, you can choose to intercept them while they're tunneling into your base. They tend not to use cover when doing so, so you can catch them by surprise. Once your defenders intercept them, they will turn to engage you.

Rocket counterattack[edit]

The doomsday rocket launcher is your best bet against sappers, if they aren't a full melee charge. Since they are bunched closely together, a single well-placed rocket can blow up most of the attacking party, causing the rest to flee in panic. If they have rocket launchers, they may drop them on death, so you may actually end up with more rockets than you started with.

If you are the one using the rockets, you have the advantage of being able to fire first. Aim it at a spot where the enemy is likely to be bunched up. If you're quick you can defeat the enemy before they can even fire back at you, ensuring victory.

Rocketeers should be behind your best cover so they can survive long enough to fire. Your other colonists should be closer to the enemy to draw fire, but out of the rocket's path lest it hits your colonists instead.

Mountain bases[edit]

If you're in a mountain base you can draft a few melee pawns to wait at the entrance, as well as a few ranged pawns facing the entrance to fire down the tunnel. When they do break in you will already have prepared to face the raiders and can pour a stream of lead right into their face or cut them into pieces.

In a mountain base, since they take longer to mine through the rock, you may try placing an IED trap right behind the wall that a sapper is trying to tunnel through, to catch them by surprise with an explosive blast. This is especially effective if it's placed right on the other side of a loose rock chunk (easily found in tunnels), which will slow down any enemies stepping over it enough that they won't be able to retreat in time.

Aftermath[edit]

Remember to cover up any tunnels or gaps in your defenses as they open up an opportunity for raiders to come straight into your base. You may fortify it and turn it into a booby-trapped chokepoint to catch unsuspecting raiders seeking direct entry.

Drop pod attacks[edit]

Sometimes pirates or mechanoids will come in drop pods. If they land at the edges, they can be treated as a normal raid party, unless you have expanded to the edges, in which they will land inside your base.
To defend against this, have a second line of defenses inside your base so you can deny the drop-podders easy entry into your base.

The main danger comes in landing right in the center of your base. Capable enemies not using alternative strategies such as sieges or sappers have a 10% chance of doing so.

Once they choose to land there, things will get ugly. By landing in the middle, they bypass most of your conventional defenses, and you can't use your cover advantage against them. They will also break through constructed roofs on their way down, landing right inside rooms and buildings. This can put not only your colonists, but your stockpiles in grave danger, as well, especially if they land near your volatile mortar shells or chemfuel stores, or batteries.

Fortunately for you, they have a short delay (520 ticks (8.67 secs)to be exact) before they open and all hell breaks loose. They also come in smaller numbers than regular raids.

Enemies in drop pods cannot land in tiles beneath an Overhead mountain, so tunneling deep underground can make safe rooms.

Strategy[edit]

Once you see them land, you should immediately decide what strategy will you use: attack immediately or wait and let them break furniture or steal things. In case of immediate attack, draft any nearby armed colonists to the site, whether they are your designated soldiers or not. Let them hold off the attackers for a while before your soldiers arrive to help. You have less than 9 seconds before they open, not enough for a soldier to get halfway across the map to help.

Any non-combatants should immediately be evacuated. They may still stay close to help in rescue efforts, pulling out any downed colonists. Make sure it's safe to rescue them- as in rescuers not walking through the crossfire and back again to get a colonist to the hospital. You may need to forbid doors to prevent them from walking through the firefight into a hospital. Melee is useful against these attacks, for you can immediately start beating up the enemy as soon as they exit the pods. They can also shut down dangerous enemies such as rocketeers.

If you decided to wait, draft your soldiers and put them near (but not close) to the drop area and wait. When raiders face no resistance, they will immediately start breaking furniture, put fire (sometimes turning the room they landed into gas chamber) and later will decide to steal some things (including furniture that can be moved), take it and flee. Let them do it, and when they take items and go, attack. While fleeing, they will not resist, making it much safer to kill all of them and return stolen back to the storage. Works best when raiders landed inside the locked room.

Like other raids, humanoid raiders will attempt to flee after receiving heavy losses; however, if they land inside enclosed areas of your base, they will be trapped, allowing your colonists to down and capture them at leisure; in their panic, they won't try to fight back, until you're well into beating them up.

Cover[edit]

You should use your furniture or wall corners as cover and fire from behind them. You can also have 2 colonists hiding behind each doorway for full cover. Toggle the doors to be held open, otherwise they can't fire. Be careful as enemies will also utilise cover as well; to combat this, attack from multiple angles or use melee fighters.

Spread out colonists so they don't take collateral damage, even if it may mean some will fire out of cover. Keep heavily armored colonists up front and lightly armored colonists at the back.

Colonists with high construction skill can relocate furniture quickly; use this to your advantage by creating cover for yourself and removing it from enemies.

If you have larger bases, you can build indoor defensive positions along crucial corridors, but take care not to let the enemy use them. Stone shelves are an option as they are durable, non-flammable and beauty-neutral.

Fire management[edit]

As most furniture is flammable, you will need to extinguish any fires if you want to prevent damage. One option is to reinstall and trigger a firefoam popper inside, which also fireproofs the room, preventing any further fires.

If you prioritize the defeat of the raiders over the loss of your property, and the walls of the room are fireproof, you can simply let fires burn, or even start some more, while you evacuate the room and shut the doors, cooking the raiders alive. Watch out for fire and heat spreading to nearby rooms, and put out fires immediately once the raiders are well done.
Not effective against mechanoids as they aren't affected by temperature and cannot be set on fire.

Equipment[edit]

High-DPS or melee weapons work best to deal with drop pod attacks.
Mid-range weapons are also good for clearing out larger rooms.

Long-ranged weapons are less effective due to their low damage output and the confined nature of indoor spaces rendering their superior range unnecessary.

Explosive, incendiary or area denial weapons are excellent at room-clearing, but are not recommended except in dire situations due to heavy collateral damage.

Tribal raids[edit]

Group of tribal fighters.

Tribal raiders come with relatively poor equipment, instead relying on sheer numbers for power. Their neolithic weapons can dish out heavy damage despite their low technology level. They are also adept at combat, with many being acquainted to some combat skill or another.

Different strategies may be required, compared to pirate or outlander raids.

Tribal fighters[edit]

They can take more of a beating compared to other poorly armored enemies as some of the clothing items they wear gives them increased endurance against pain, but when compared with other decently armored enemies they are easier to kill individually as their clothing doesn't provide much protection overall.

Their archers or hunters can fire their bows from a somewhat long distance, sometimes forcing you out of cover to fire your shorter ranged weapons at them.
Warriors or berserkers don't use shields (unlike their pirate counterpart, the mercenary slasher), making them vulnerable to gunfire.

You should watch out for the pila wielded by heavy archers, as well as berserkers.

  • Despite the short range and slow fire rate, pila are incredibly deadly if they land, capable of killing or incapacitating unprotected colonists with a lucky shot to the heart, spine or limbs.
  • Berserkers carry excellent melee weapons that dish out incredible amounts of damage once they get close.

Weapons[edit]

You will need sufficient mid-long range firepower to take down tribal archers from a distance, for getting close to them in order to fire your guns is pretty much suicide. Long-ranged weapons beyond 32 tiles can effectively hit archers at maximum range, matching or outranging them.

Close-mid ranged weapons with high stopping power are good for taking down tribespeople that come too close to your defenders, but they alone cannot defeat tribals effectively just by staying in static cover.

Crowd control helps greatly in defeating tribal raids.

  • The Minigun is extremely effective as it can easily mow down the densely packed groups of tribal invaders.
  • All explosive weapons are devastating on tribals.
    • Rocket launchers deal heavy damage while being reasonably accurate.
    • High-explosive shells can pulverize a sizable group of tribals at once if they manage to hit.
    • Grenades are less effective as you have to risk a colonist or two in order to get in range.
  • Incendiary weapons are good at getting pesky archers out of cover for your colonists to hit.

Empire raids[edit]

Added in the new Royalty DLC, the Empire is capable of sending powerful troops to assault your base. Unlike Outlanders, Tribals, or Pirates, one major advantage they have is that their skills are matched with the weapon they use- melee Champions will actually be good at melee, while Troopers, Janissaries or Cataphracts all have excellent ranged performance.

Cataphracts are among the most heavily-armored units in-game, with an outer layer of cataphract armor and an inner layer from an armorskin gland. However, their armor also slows them down significantly.

This can, however, be turned to your advantage through the use of Psycasts introduced in the Royalty DLC. Using Berserk or Berserk Pulse on the most dangerous of the hostile army can cause them to turn their powerful weapons towards murdering (and being murdered by) their allies rather than your colonists. Note that Berserk Pulse can affect pawns immediately on the other side of a wall by casting the ability on a tile adjacent to a wall, allowing the ability to function as a defense against sappers or groups moving through constrained areas (such as a narrow snaking corridor leading to your killbox).

Caravan ambushes[edit]

Defensive battles don't always happen at base. Sometimes it may happen far away from it, striking one of your caravans, perhaps loaded with plenty of silver. Or maybe they creep to your traders and demand ransom, which you don't feel like paying. You always need to be prepared for ambushes when you send out caravans.

Escort[edit]

In any cargo-carrying caravan, sending only 1-2 colonists is usually not advised except in very short-distance trips as they will not be able to fend off an ambush. In this case, have combat-capable escort members which can fight and carry items, as well as medics who will patch up your colonists after battles.

If you have lots of attack animals, you can also send just 1 skilled handler with the attack animals. They can swarm any attackers, and you can leave colonists back at base for work. Remember to take into account the animals' food needs; grazing animals work best for this reason.

If you are not carrying much besides a lone colonist, leaving him to go alone is helpful as lone colonists are hard to detect, reducing both the likelihood and the power of ambushes. A single colonist with a pack animal trained to obedience should be able to fend off most attackers.

Ambush site[edit]

The ambush site is small, restricting the space where you can conduct your battle. This renders many tactics obsolete, such as long-ranged sniping or kiting. You will often have to face off the enemy in a direct gunfight or brawl.

Besides this, you can't escape the fight until it's over, leaving no choice but to fight back.

Cover and positioning[edit]

Improvised defensive position against ambushes, making the best of what is there. Colonists behind walls will enjoy up to 75% full cover, while pirates will only receive 25% at most from trees and such. Two brawlers are ready to execute a melee sortie, while another is ready to peel for the gunners. Combined with good equipment, this allows the fight to be won with few injuries even when outnumbered.

If you have time, go somewhere where there is cover for you, but not the enemy. This gives you a significant upper hand in defensive battles where the enemy is coming at you. You should be hiding behind walls for cover if possible, as they provide up to 75% cover, but if they are not available, use what is available, e.g. rock chunks or trees. Space out your defenders to reduce the amount of collateral damage the pirates deal.

Melee sorties or rushes work well if you have brawlers, to negate any dangerous ranged threats; shield belts help them traverse the short distance to engage.

Items[edit]

You will need to bring some items so you can be prepared for a surprise attack.

Weapons[edit]

You usually don't have weapons to switch in a caravan unless you're bringing more than you need with you, so choosing the right weapons for your escort party is important.

  • High-DPS weapons are optimal for dealing with ambushes.
  • Long-ranged weapons are good for taking down targets at medium-long range, however their low DPS may offset their range advantage in an ambush.
  • Miniguns are good against tightly-packed raiders hiding behind cover in an ambush. However, their heavy weight and movement speed reduction means you may want to reconsider bringing one.
  • Melee weapons can help fight off enemy brawlers, or disrupt enemies behind cover. You should have at least 1 melee fighter in each escort.

Medicine[edit]

You should have some medicine handy so your colonists can patch themselves up after the battle.

Medicine should be your choice here; you should try to get good treatment to reduce chance of infection, as colonists don't get much rest in a caravan. Herbal medicine is useful if you have a good doctor on hand.

Aftermath[edit]

You can reform the caravan immediately after the battle is ended; you can bring along any downed colonists, as well as capture downed enemies. The caravan members will tend to themselves shortly afterwards.

Alternatively, you can stay and forage from the ambush map before you leave.

Manhunters[edit]

Animals, singly or in groups, may randomly turn mad and become hostile due to various reasons.

When mad, they will actively attack humanlikes or mechanoids, and will not attack other structures unless provoked (such as seeing someone walk through a door. Note that this includes colony animals. Manhunters can and will navigate through doors opened by colony animals, and will attack the door for a while if the door closes in front of them). They are not sophisticated in their attacks and are only capable of actively using melee. Some can explode upon death for devastating results.

Animal categories[edit]

Most animals can be part of a manhunter pack. Each kind has its own statistics, and can be roughly grouped as follows:

  1. In terms of speed:
    • Slow: Animals that run slower than an average colonist. This allows you to kite them in addition to melee blocking.
    • Fast: Animals that are faster than most colonists.
  2. In terms of other properties:
    • Explosive: Animals that explode on death such as boomalopes or boomrats. They can set your brawlers alight, ruining melee blocking defenses, so for these, you may need alternative tactics. These types, however, can trigger a chain reaction, as the explosion from one animal can kill others, causing further explosions and potentially further deaths.

Occurrence[edit]

Mad animals can strike your colony in several ways.

  1. Singular mad animals may randomly attack.
  2. Manhunters packs can arrive in great numbers, afflicted by the deadly disease Scaria.
  3. Psychic waves drive all animals of a single species insane, directing them at your colonists. They are usually scattered at first, then proceed to converge on your colonists.
  4. In an unfortunate hunting incident, animals being hunted will turn on you, and may even bring their allies along.

Melee blocking[edit]

As with any full melee attacks, melee blocking is an extraordinarily efficient way to defeat manhunter packs. This is especially so if the animals are small such that they deal little damage before being killed, one after another.

When psychic waves occur, either lure animals into one spot or set up multiple chokes for attack.

Animals vs. Animals[edit]

One good way to fight off mad animals is with... more animals! Just draft anyone with Release-capable animals assigned, and set them out. Your colonists can watch safely from a distance, or take a potshot or two while watching the animals tear each other apart. Just remember to have someone mop up the bloodstains and haul the corpses of the fallen. As with melee blocking in general, even non-Release-trained animals can be used for defense by confining them to a single tile zone at the exit of your killbox, causing them to both body-block and attack any hostile animals that try to enter through it while your colonists shoot at them.

Hit-and-run[edit]

A slower strategy is to draft a colonist, place it in a door to shoot a maddened animal, move the colonist back to safety and wait until the animal gives up and wanders off, then repeat. Be careful since this will draw the attention of surrounding maddened animals making them attack the door where the colonist came from, so be ready to repair it immediately.
You can either kill them directly or wait for blood loss to take its toll. Larger animals can be softened this way before you move in for the kill.

This method is best used if you don't have enough firepower to take on them directly, and you have durable enough doors or a good builder to hold against animal attacks.

Kiting[edit]

Being unsophisticated in their tactics, they can be lured easily.

If you have good shooters that are fast (moving >140%), you can easily kite the faster animals.
The larger animals are usually slower and any colonist that has normal Moving will do fine against them, though it's still better with a faster-than-average colonist.

It is possible to combine this with a long-range firing squad and turrets laying fire from a distance while they are chasing the colonist; be sure that the animals do not lose track of your kiters, otherwise they will switch targets and go for somebody else.

Turrets[edit]

Turrets can distract manhunters for your colonists, giving them more time to shoot while enemies are occupied by the turret. They may explode when destroyed, taking out a sizeable group of animals who won't run away from exploding turrets, switching to another target only after the turret is no more.

Waiting it out[edit]

If you have a perimeter wall or a superstructure base with decent food stocks, you can simply wait it out inside while they relentlessly swarm outside the walls.

Remember not to let anyone outside unless your intent is to kill the animals. Be careful with your tamed animals who may accidentally let the manhunters in by holding doors open for them.

They will actively attack doors if a colonist hides behind them; as a precaution, build it out of a sturdier material such as plasteel so they don't get destroyed during a manhunter attack. They will give up after a while if the doors are not destroyed. Alternatively, simply have a builder build a wall behind the door, totally preventing manhunters from entering even if they break the door.

Scavenging dead animals[edit]

Manhunter packs are a decent source of meat for your colony. If there are still maddened animals, wait until the other animals from the pack go to sleep, walk away far enough, or get a fast colonist to try and haul the dead ones away. Note that animals with Scaria from the manhunter pack events have a high chance of instantly rotting on death and thus being unharvestable for meat or fur/hide.

Mechanoids[edit]

Mechanoids come in 4 types: Scythers, Lancers (1.0), Centipedes, and Pikemen (1.1). They have much differing stats and weapons, meaning different tactics may be used. All types are armored to some degree, and are basically immune to fire damage.

In many raids where they come/drop in at the edges, the Scythers will outrun the Centipedes by a great margin, giving some time to deal with them before the centipedes. However, they can and will support one another effectively, if given the chance for them to come together.

Unlike humanlike raiders, they do not flee, meaning that all of them have to be taken out to neutralize the threat. They do not actively use cover, either.

General strategy[edit]

Ranged mechanoids have a long attack range (at least 27 tiles), making them troublesome to deal with. A way to deal with this is to lure them into close range.

They are vulnerable to EMP damage, which can stun them, rendering them hunks of helpless metal. This can open a window of opportunity where you safely engage at close range, or even with melee. After each use of EMP, mechanoids will adapt to it, becoming immune to further stuns for a short while, so you will need to carefully time assaults and disengage when the mechanoids are about to reactivate.

Scythers[edit]

Scyther east.png

Scythers are deadly with melee, and will charge head first at your defenders. They can easily win in a 1v1 fight unless your fighters are heavily armored and have high DPS.

The optimal method of dispatching them is by melee blocking, with the added effect of luring the other mechanoids closer to your base. This must be done quickly otherwise the centipedes will catch up and unleash hell on your colonists who are closely packed together in a melee blocking attack.

EMP weaponry combined with melee blocking is a frighteningly effective and safe way to deal with scyther-only charges. A stunned scyther standing in the chokepoint will block all the other scythers standing behind. To prevent adaptation, only stun the mechanoids within the chokepoint.

If fighting from a distance, high-damage weapons are essential to bursting them down before they reach your colonists. Make sure you always have someone to peel them off your gunners in case they do survive your barrage.

Lancers[edit]

MechanoidLancer.png

Lancers are capable of medium-long range supporting fire to pick out single targets. Despite their apparent role, their performance is actually better the closer you are to them, meaning that approaching them isn't a good option.

They are vulnerable in melee combat, so melee rushing supported by close-range firepower can be used to take them down. Their low health makes taking them down relatively quick despite their light armor, though their damage in melee combat should not be underestimated, and concentrated fire from charge lances can make short work of shields.

If fighting from a distance, cover is vital in getting the upper hand. You need to be able to get your other gunners into range while giving them reasonable cover from the high damage shots. Lancers aren't particularly good shooters (equivalent to a level 8 shooter), so you may readily outperform them with sufficient mid-long ranged firepower.

Centipedes[edit]

Centipede east.png

Centipedes, on the other hand, specialize in crowd control and area denial; the Heavy charge blaster can annihilate groups of colonists, while the Inferno cannon sets your colonists ablaze and will burn down your base if you're not careful. They are incredibly durable, sporting thick armor and high health, and can take many hits before being downed.

Spreading colonists apart can mitigate the crowd-control capabilities of centipedes, limiting the number of colonists hit by their weapons.

The Inferno cannon is annoying to deal with and should be your priority target. Keep watch on your colonists at all times and always send them back into cover after they get hit.

Despite their high resistance against sharp damage, shooting them is generally the best option. One good thing is that their large size makes them much easier to hit.

Engaging it in melee is possible, though you have to be careful. While centipedes don't hit hard in melee, if they are carrying the heavy charge blaster, they can deal massive damage to grouped up brawlers, while inferno cannon can cause the brawlers to ignite and run, allowing the previously locked down centipedes to fire. Ideally, all nearby centipedes must either be engaged in melee or disabled to prevent this from happening.

Their slow speed and weaker blunt armor make them excellent targets for high-explosive mortar attacks. Often you can land a couple of blows before they reach firing range, weakening them. This property also allows you to kite them provided they have no lancers or scythers supporting them.

Pikemen[edit]

MechanoidPikeman.png

Introduced in 1.1, pikemen take over the lancer's role as snipers. Their extreme range is only matched by the sniper rifle.

They have poor damage output, making them less threatening compared to other mechanoids. Their accuracy is also not appropriate for a sniping mech- equivalent to a level 8 shooter, it will more often than not miss at range.

As the description says, engaging pikemen at close range can be a viable way to take them down, once all others have been dealt with. Charging them can be risky due to the long distance pawns need to travel, but shield belts make the charge much safer, especially when you have multiple brawlers charging at once to divert concentrated fire. Swarming them with trained animals is also a viable strategy if you lack multiple skilled melee pawns or need them elsewhere.

Termites[edit]

Termite.png

Spawning only in mechanoid breach raids, the termite is a dedicated anti-structure opponent. The termite's thump cannon can deal tremendous damage to your structures, and are able to destroy a three tile wide section of any wall weaker than plasteel in three shots or less. Against pawns, however, it is significantly less effective with lower damage, AP, and DPS than even the lowly short bow.

Since they are so specialized in breaching walls, they cannot deal much damage to your pawns. However, killing them should be prioritized after scythers, since they will destroy your pawn's cover, exposing your pawns to danger from the termites much more directly dangerous companions.

Crashed ships[edit]

Mechanoids are also part of crashed ship events. In 1.1 they drop alongside the ship in pods, while in 1.0 or earlier they swarm out when the ship is damaged.

The type and where it lands are both important factors to consider when dealing with them.

Psychic parts will reduce mood and occasionally drive nearby animals mad, while defoliator parts (aka. poison ship parts in 1.0) will kill nearby plants and cause serious losses to pastures or crops. You cannot deconstruct the part, only destroy it.

Since they won't attack until triggered, you have some time to prepare. However, the longer you take, the worse it gets. If the defoliator ship part lands on the opposite side of your base at a map border, it is possible to leave it there, as they will also react to incoming raids and you may as well solve two problems at once. Not the same for the psychic version though.

If they land between your plantations, you will need to place firefoam poppers and trigger them before combat to prevent fires; the foam will persist until it rains, but then if it is rainy, you won't need the poppers. You may also want to keep a few untriggered poppers nearby to rapidly extinguish a group of burning colonists at once.

Crashed ship part using foam poppers.png

Defense behavior[edit]

Mechanoids are triggered immediately when the part is damaged, or something is built within a three-tile radius. They may also be triggered by the Firefoam popper explosion.

Upon triggering, scythers will immediately charge to attack, while lancers, centipedes and pikemen may instead sit in place and attempt to shoot interlopers, only moving to get within range.

Afterwards, they will guard the ship part, engaging any hostiles that come close, and chasing them over short distances. They will return to the part if targets stray too far away from the ship.

In 1.0 mechanoids chased targets over long distances and abandoned the ship part when it is at 50% health.

Long-range engagement[edit]

In the current version, it is better to trigger the mechanoids from a distance, rather than fighting way up close. This is necessary such that you can weaken the scythers with concentrated fire before they reach melee engagement range, as well as give you more time to defeat the lancers before the centipedes move within range. Scythers are especially dangerous as they come in swarms and can quickly overwhelm your gunners, as well as overpower your melee brawlers unless you outnumber or outarm them.

You can trigger the mechanoids either by high-explosive mortar fire, or sniping the ship part.

  • By attacking with sniper rifles at maximum range you will gain a good enough lead against the mechs to be able to escape safely even without enhancements unless armor is over-encumbering your colonists.
  • Mortar volleys can soften the mechanoids, making them easier to defeat by your colonists afterwards. Mortars may also destroy the ship part itself, which both ends the threat and prevents the mechanoids from disengaging from an attack and returning to guard it (though this can be either good or bad depending on the state of your defenses).
  • In 1.1 you can also use EMP to stun them before engaging, then retreat before they exit stun, which is 25 seconds after being hit by EMP.

Weapons[edit]

High-DPS weapons are optimal at destroying both the ship part and its defending mechanoids.

Due to the mechanoids spawning very close together, area of effect or crowd control weapons are punishing against them:

  • The minigun is a powerful weapon here:
    • It can make short work of the bunched-up mechanoids, then shred the ship part using its unparalleled raw DPS.
    • Its already high DPS is further amplified when attacking centipedes as their large size makes it easier to land shots.
    • Its long range allows you to attack from a safer distance.
  • EMP mortar blasts are able to stun a large number of mechanoids caught in its blast. As the ship part blocks EMP pulses, fire several at once to hit all enemies with a single volley.
  • Explosive weapons are useful for dealing damage, but keep in mind that the ship part will block the explosion. They do extra damage to the ship part.

Incendiary weapons are a poor choice for any situation involving mechanoids or crashed ships, given that both are non-flammable.

The orbital power beam targeter is the ultimate weapon against crashed ships. All you need to do is to aim the beam directly on the ship, and the beam will melt both the ship and its surrounding mechanoids.

Construction[edit]

Construction is an important part of defeating the mechanoids in a crashed ship. Usually it is best if you can prepare ample cover, such as sandbags or walls, to shoot from.

Keep note that building within a three-tile distance will instantly trigger the mechanoids.

If done properly, IED traps can be used to weaken a mechanoid swarm. Don't build too many or you will vaporize the mechanoid corpses, which can be deconstructed for resources.

Luring in[edit]

If you already have ample static defenses, like killboxes, and you want to lure the mechanoids in, you will need to make the mechanoids abandon the ship by destroying it from a long distance.

Previously in 1.0, you can lure the mechanoids simply by triggering at range.

Hit-and-run (1.1)[edit]

Their behavior change in 1.1 makes them vulnerable to hit-and-run tactics. After taking care of the scythers, you are able to chip away at the mechanoids slowly by shooting with sniper rifles at maximum range. If all pikemen are taken out then you are able to safely engage without fear of returning fire.

Zoning animals[edit]

When dealing with a crashed psychic ship part that has been there for some time, do not let any of your tamed animals near it, for the ship part can drive them into manhunter mode. This is additionally harmful as they are capable of opening doors to attack your colonists.

Mechanoid breach raids[edit]

Mechanoid of the breach raids will not ever walk through the kill box as you wanted them to, instead they will blast walls down and head straight for your base.[Detail Needed]

It is worth considering the use of a psychic shock or insanity lance to take down the termite from far away, as there will only be up to two termites per raid. Losing the use of the specialized anti-structure thump cannon will significantly delay the raid, as they will instead be forced to destroy walls in their path with their more traditional weaponry. This gives you time to prepare a defense behind that section of wall.

Typically this raid strategy will result in the mechanoids clumping up, giving a prime target for EMP grenades or a triple rocket launcher, hopefully to devastating effect. Note the mechs will not attack colonists unless they come into the range of the mechanoid's gun. The long range of the triple rocket launcher is beneficial here, only putting the wielder in range of the pikemen's needle gun.

Infestations[edit]

Infestations will spawn under Overhead Mountains within 30 tiles of a colony structure. They can be a serious hazard in mountain bases due to the lack of free space to run away from with too many obstacles on the path, but not so much threat in open area (flat) maps. Insectoids are lightly armored, exclusively use melee and are slower than colonists. This gives them some protection against close range attacks, but leaves them vulnerable to ranged attacks and kiting tactics.

Infestation within mountain rooms bugs.png

If you don't destroy them fast enough, they can reproduce, giving rise to even more hives and insects. This is especially true if you happen to have forgotten about a hive, which given time can build itself into a giant mega-hive.

Behavior[edit]

Insects have a hive mindset; they will remain tending to their hive cluster, until they see an intruder, in which case they begin to engage all at once. They may also attack random furniture and structures in your colony.

Fighting infestations[edit]

The enclosed nature of mountain bases give colonists little distance to shoot from; thus, you may want some melee fighters to pair up with any ranged colonists.

Individual fighters will quickly get overwhelmed by the insects especially against large megaspiders, so you shouldn't trickle your defensive forces in; rather, send them all at once to overpower the insects.

Melee blocking[edit]

If there is a single choke point for the insects to get into your base (usually a door leading to a corridor), usage of this tactic allows you to defeat insects efficiently. You may even stand a chance against massive infestations if for some reason fire isn't viable, but don't get cocky. If the infestation is large you will need to bring backup tanks to replace the initial melee blocker if he or she gets downed or heavily injured.

Choke points can arise on their own from insects digging out; simply wait for them to tunnel through and massacre them once they exit.

This tactic is only viable if you have enough soldiers with substantial armor as insects inflict heavy sharp damage and will obliterate everybody not sufficiently protected.

Using fire[edit]

Fire is an effective way to clear early-mid stage infestations. If they spawn in an enclosed area with a door and plenty of flammables, all you need to do is to toss a molotov or shoot an incendiary launcher bolt into the room. The room will quickly catch fire, causing the temperature to rise fast, roasting the insects in it along with the hives.

The downside of this approach is that it makes it impossible to farm any insect meat or jelly from the infestation, because it will all burn, and it is usually too hot inside the spawn room to manually extinguish the fires to save the goods (unless there is a way to quickly vent the heat, which is usually not feasible to set up).

If there is a dedicated place in your base for infestations to spawn (see baiting below), it helps to have a few cheap wooden furniture items in that room, and maybe a few tiles of wooden floor. A great source of additional flammable material are tainted clothing items and desiccated animal bodies. Dusters and parkas have a lot of hitpoints, so they burn longer. These items are easy to get into the burn room simply by creating a stockpile with appropriate settings. A 3x3 stockpile should be more than enough to create enough heat to clear out any infestation. The fire created will usually last several hours, which is more than enough time to kill everything in the spawn room.

Separating the actual spawn room from the burn room with a wooden door makes it very easy for your colonists to start the fire without the insects attacking. The heat will spread into the spawn room regardless (and burn the wooden door).

Having a few flammable structures, such as cheap furniture) in the room is important, because the insects are stupid enough to attack these first when enraged from the fire, wasting time — instead of digging out of this trap.

It is possible to reach the temperature maximum of 2000 degrees celsius this way. Check the temperature in the spawn room before stepping in with any colonists, because they will very quickly collapse from heat stroke and possibly catch fire and die at these ludicrous temperatures.

The insects will rush for the exit of the burn room in a panic when they realize what is happening to them, and will quickly attempt to dig out to escape, so make sure the exit door is made of rock which is durable and nonflammable.

If there aren't any flammables around, you can still shoot the hives with fire weaponry. They will light aflame, along with the fuel puddles created on the ground.

As any items inside the room are likely to catch fire and be destroyed, this tactic is not recommended in a place with many valuables such as warehouses. Also be careful with the heat spreading to nearby rooms.

Heat Stroke[edit]

By using a colonist to manually throw molotovs at the ground, either inside the bug room itself or in an adjacent room with an open doorway, you can maintain the temperature of the insect room between 150C and 200C, slowly knocking them unconscious and killing through heatstroke. As long as the temperature does not rise above 200C, the bugs will not get burn injuries, and therefore will not become aggressive. Have your colonist throw the molotovs through an open doorway in order to protect the colonist from the heat. When doing this, take care not to hit anything directly with the molotovs, as the fires created will anger the insects and set flammable objects on fire.

It is important to note when doing this to make sure that all bugs are significantly above the serious heat stroke threshhold (60%) before you move in, otherwise the temperature will start falling when you stop throwing molotovs and they may recover and attack your colonists.

Explosives[edit]

Explosives are useful against large infestations. The Triple rocket launcher can raze infestations instantly. A single use Doomsday rocket launcher will deal massive damage over a large area. Frag grenades are unlimited and work well if you have the courage to send someone to close range. One blast can get several insects.
Explosive animals (boomalopes or boomrats) are also effective at clearing out infestations. Have them march straight into the hive by zoning them there. When the insects attack, the animals will be injured and explode, setting the insects and hives on fire.

Mortars are useless against the hives themselves as they can't hit anything below an overhead mountain. However they are an option when fighting the insects in open space, with the explosions capable of severely injuring the insects, taking out the smaller ones in 1-2 hits.

Late-stage infestations[edit]

If you've accidentally left a hive or two behind or totally ignored an infestation, after a few seasons you will have a giant hive community sprawling. This is extremely hard to treat, especially if you're low on colonists.

If you're still on early-midgame, it's generally recommended that you pack up and run. If not, however, you will have to deal with them slowly. You need to lure the insects out, then defeat them to buy time for others to enter and destroy the hives. Kiting is a possibility due to their slower speeds, provided they continue to chase down your colonists.

Explosives are recommended as they deal immense damage to the closely packed hives and insects. This is especially so with the doomsday rocket launcher, which can set entire infestations on fire, destroying the hives and severely weakening the insects.

Prevention[edit]

If you only have a few tiles of Overhead Mountain then it's best that you fill it up with walls to prevent any infestations from happening. If you are in a mountain base, then you will need to do more than that.

Baiting[edit]

You can mine out rooms a distance away from your colony to somehow control insects to nest there, instead of letting them spawn right in the middle of your base. Place some cheap flammable furniture inside to confuse the insects into thinking it's a prospective nesting spot, as well as to light on fire for a quick solution to an infestation problem. You may even use wooden walls or columns, which in a large enough room will cause a roof collapse and crush insects after being destroyed.

A well-lit base discourages insects from nesting, though it can still happen. If you bait insects to spawn elsewhere the chance of an infestation spawning inside is greatly reduced.

If you want the insect trap to automatically kill insects, put an IED incendiary trap inside the room, next to the flammables. Once an infestation spawns the insects will trigger the trap, lighting the room on fire and broiling the insects.

Alternatively, fill it with spike traps to weaken them before they strike your base, giving you the advantage. Doing this preserves the hives, which can be good if you want to farm insect jelly.

Deep freezing[edit]

An interesting way to completely prevent infestations is to simply set your base temperature below -17°C with coolers, and have everyone in the colony wear parkas.

This means that the 'Slept in the cold' debuff will be prevalent in the colony, however, so you will need something to offset the mood. It will also incur a work speed penalty on all production facilities due to low temperature, making this strategy not very viable on all but the lowest difficulties (where infestations are not a big threat in any case).

Deep drill infestations[edit]

Deep drills can unearth insect hives, which will result in enraged insects charging up to attack after a while.

When you see this happen, gather up your defense forces to fight the incoming insects. Have them approach your base where you can melee block them while evacuating other colonists so the insects don't go for them first. Nearby pets or other tamed animals will also be attacked; you can either evacuate them beforehand to reduce losses and ensure a successful melee blocking attack, or use them as bait to grab the insects' attention while your colonists lay fire on them.

Note that if you have a deep drill near the walls of a room it is possible for the insects to spawn outside the room.

Prison breaks[edit]

If you have prisoners (or potential colonists or hats) on hand, always expect them to break out any time. This is more so if you have many of them, each one ready to incite a riot whenever the guards aren't looking.

Escaping prisoners can open any colony door, and will snatch weapons whenever they see one.

Strategy[edit]

You should body block the prisoners with armored wardens carrying blunt weapons, or melee attacks with guns. They will fight and down the prisoners while blocking their exit, buying time for reinforcements.

Against already injured yet unarmed prisoners, send 1 brawler per prisoner to minimize the risk of beating them to death.
For those at full health, 2 unarmed wardens or 1 skilled one can tackle a full-health unarmed prisoner without the wardens being downed in most cases.

Ranged wardens should attack when the prisoners are blocked by melee wardens so they can attack from a distance without much danger, and their weapons won't land in the enemy hands so easily. Don't fire too much at them as you risk permanent damage as well as accidentally killing the prisoner.

Weapons[edit]

You goal here isn't to kill the prisoners, it's to down them so you can recapture them.

  • Blunt melee weapons such as the mace is a good choice for wardens to down escapees. The wounds don't bleed (unless you crush an internal organ or destroy a part entirely), nor will they be infected, giving them higher survival chances overall.
  • At a distance, use low-moderate DPS weapons that won't deal too much damage to the prisoners, or to your people when the prisoners pick them up.
  • Don't use high damage per hit weapons such as sniper rifles or longswords, as you risk instantly killing them or destroying an important part.

Turrets[edit]

Mini-turrets can be used as a form of distraction and supplementary firepower against prison breaks. Station them outside the prison doors, and they will fire on the escapees. They deliver decent firepower at short ranges, and leave no usable weapons on destruction. Prisoners also tend to stop to fight the turrets, giving wardens time to reach them.

1-3 are enough for most prisons. Don't put too many otherwise they may kill the prisoners before you can intervene.