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For a guide to survive events, see Event Survival Guide .

Events are driven by the currently selected AI storyteller. They range from everyday occurrences like passers by, to all out assaults on the colony.

Most events occur with an envelope icon that will appear down the right side of the screen. Other events will pause the game and pop up a window where the player must make a choice.

Generally, envelopes are color coded according to whether the event is good or bad. Blue envelopes denote good events, red envelopes denote bad events and yellow envelopes denote neutral events. Clicking an envelope will open up the message with a description of the event, and the option to either dismiss the notification or, where possible, go to the location of the event. Alternatively, notification messages can be dismissed without opening via right click.

As of Alpha 17 (May 24th, 2017), some events can now happen on temporary maps.


Big Threats

For strategies to defend against big threats, see Defense tactics .
For defensive base constructions, see Defense structures .

Enemy Attack

These events can take place from Base Builder difficulty onwards.

Commonly known as a raid, this event comes in several types. The size of a raid is determined by your colony's wealth, and the difficulty setting of the AI Storyteller. It is possible for multiple raids to occur at the same time, possibly to the benefit of the player if both raids are from opposing factions.

Different types of raids include:


Assault raids arrive either via the edge of the map or by drop pod. They may assault the colony immediately, or stage for a time before launching their attack, allowing colonists time to take up defensive positions, or to skirmish/counter assault the attackers.

Mid-Base Assaults

A group of raiders arrives via drop pods directly in the player's base, leaving little time to prepare. Drop pods may punch through a constructed roof or thin rock roof, but not overhead mountains.


Siege raids typically have a party of raiders arrive and set up a small camp along the edge of the map with a number of sandbag walls and mortars which could be explosive or incendiary. They will fire upon colonists, colony structures and any visitors or other raiders from factions they are hostile to, only stopping to eat and sleep.

Siege parties will abandon their camp and any remaining construction to assault the colony when their siege weapons are destroyed or they suffer significant casualties. Any remaining supplies and objects from their camp can be claimed, deconstructed and used by the player.



A bug hive has emerged! It will slowly spawn bugs as well as produce additional hives. If you don't want it to infest the whole area, muster your forces and destroy it. But beware - the bugs will defend their hive.

Infestations will only spawn under an overhead mountain. Hives also bring glow pods that glow for 20 days (as long as they’re installed) and can be reinstalled or sold.

Hives also produce insect Jelly, so if you could trap the hives via walls and doors, you could potentially farm the insect Jelly, though the insects are liable to digging out.


Manhunter Pack

This event can take place from Base Builder difficulty onwards.

A pack of man-hunting animals have entered the area. They will roam the region, hunting for humanoid flesh. If they see a colonist run behind a door, they will attempt to beat down the door. They'll leave the area in a few days.

A manhunter pack has 40% more points allocated to enemy spawning than an ordinary raid (i.e. a manhunter pack is 40% bigger than a standard raid), and animals from manhunter packs will congregate around your base for anywhere from 24 to 54 in-game hours before they all leave. While this is a negative event, it can be turned useful for taming as wounded animals can be healed and tamed afterwards. As well as to butcher meat, killed hostiles are better hauled after the remaining ones fall asleep since they won`t rotten until 2 days have passed, there`s no need to rush for spoils.

  • Boars, Wargs or anything that runs faster than a baseline human can be very problematic to deal with even with moderately-well defended colonies because they can easily outrun humans, and they all typically arrive in very large numbers meaning they can easily overwhelm a colony.
  • Explosive animals, especially boomalopes, are arguably easier to deal with in larger numbers as 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 (e.g. Charge Rifles, LMGs, Miniguns etc.)

Manhunter pack.png

Psychic Wave

A psychic wave is a pulse of psychic energy that immediately drives all members of a species of the local wildlife insane, causing them to attack the nearest human, and any animal that happens to be standing in their way. A psychic wave is not to be laughed at - most of the wildlife in RimWorld is quite fast, and can close the gap to a colonist before they can get off a second shot, often leading to the colonist being overwhelmed.


Special events only occur during certain circumstances.

Ancient Danger

This event is related to map generation and may not appear on every map. It may occur more than once per map.

"As (Colonist Name) draws near the ancient wall a sense of foreboding overcomes him. (S)He isn't sure why, but (s)he feels this dusty structure may contain great dangers" -message that appears when the first colonist walks near

A colonist approached a walled out area of the map partially or completely under a mountain that contains one or more of the following: ancient cryptosleep caskets, bugs with hives, mechanoids or treasure. Open at your own risk by blowing a hole in the wall or deconstructing a section. The cryptosleep caskets usually contain humans, but may also contain megascarabs or be empty. Opening or attacking any casket will cause all the others to open instantly. The Spacers inside the caskets may or may not be dead. If alive, they may or may not be wounded, or armed and hostile. It's even possible for pawns incapable of Violent to melee attack. If they are not hostile and can walk, they will try to escape. Any alive Spacers inside may be captured and recruited, usually with a low recruitment difficulty percentage.

Ancient structures may include other treasures like psychic lances and pulsers. Luciferium can be found in these buildings. Pod people sometimes carry plasteel, components, and gold. The caskets can be claimed and used or deconstructed by the colony.


This event can only occur if relations with at least one other faction are friendly.

Friendly factions may send fighters to assist you when enemies hostile to both factions appear, such as pirates, manhunters or insectoids. These fighters may be specifically requested via the comms console at a hit to Goodwill, or the friendly faction may send them on their own at no cost to Goodwill. They won't assist against factions that they aren't hostile to.

Keep in mind that friendly fire will damage your relations with the aiding faction. On the other hand, rescuing their downed people will improve relations.

Friendlies have a strength of around 150 - 400 points, not enough against mid-late game raids on their own. Still, they can add a little to firepower and help in distracting the enemy.

Journey offer

A friendly AI transmits the location of a distant hidden ship that can help you escape the planet. To board the ship, you need to send out a caravan to trek long distances to get to it.

This event only happens once, and spawns in a location between 200 and 800 tiles away, with a tendency to spawn as far away as possible. With 50% and 100% generated maps, it will usually spawn on the other side of the planet.

Outpost destroyed

R.I.P. some pirate faction, nobody will remember you.

This is the notification that triggers when you successfully defeat all hostiles in an enemy base after invading them. After this you have 24 hours to treat the wounded, pack up and leave.

Faction defeated

Should you destroy all bases of a faction, the notification will say that since you just destroyed the last faction base, the faction no longer exists.

You can still view the defeated faction in the menu, but it will just show 'Defeated'. They won't send any raids, nor will they send caravans.

Precious minerals found

This event may only occur once the long-range mineral scanner is built and powered, and even then on average once every 30 days.

Your scanner has found precious minerals nearby, either gold, silver or jade. Once colonists reach the spot, a temporary map will be generated with the precious mineral lump in the middle. The minerals will usually be guarded either by pirates or a manhunter pack.

Ransom (Time remaining)

This event can only occur if a colonist of yours was captured by another faction during a previous raid.

Another faction left the map with one of your downed colonists during a previous attack and will release that colonist to you... for a price. The offer will be good for 24 game hours. If paid, the colonist will immediately appear on your map border.

Refugee Chased at (Settlement)

This event will not trigger if the colony doesn't have hostile relations with any faction. Pirate band factions should always be hostile since any attempt to improve relations with them is disregarded by design.

When this event triggers a window appears stating that an individual calls you via radio from nearby, seeking refuge from a faction that is hostile to you and chasing them. The player may choose 'Offer safety' or 'Ignore the message'. Ignoring the message will end the event.

Offering safety will spawn the individual as a colonist at the map's edge who proceeds towards the colony. Shortly thereafter (a delay between 1,000 ticks (16.67 secs) and 2,500 ticks (41.67 secs), the pursuing faction arrives in the form of a raid entering the map where the refugee appeared. Raids arriving this way are 35% stronger than usual. Still, those chasing raiders are also potential colonists if they can be captured and recruited.

The new colonist will usually be poorly armed and clothed.


This event can only occur if there is at least one battery with stored power and connected to an active power grid with a power conduit.

At any moment, a power conduit may suffer a fault, causing it to explode and expel all stored power in the attached circuit in the process. The amount of stored power directly affects the size of the explosion, up to a maximum of 15 squares in diameter from a total of 90,000 Wd stored. The explosion can damage any nearby structures, items and colonists, as well as catch anything flammable nearby on fire. The explosion will often completely destroy the one section of power conduit where it occurred, cutting off power to anything past it unless there is another path for the electricity to flow around this damage. Laying redundant pathways throughout your colony prevents this.

In addition to the explosion and fire, it will completely empty all batteries attached to that circuit. Isolated batteries will not be discharged. If this event happens at night and your colony is dependent on solar power, then you may be without power until morning. This could affect your crops growing in greenhouses or hydroponics basins, as well as heaters and coolers.

Small Threats

Animal Revenge

An animal that was harmed will go mad and target whomever hurt it. The game will notify you if such an animal chosen for Hunting will likely attack if harmed, usually predators. Occasionally, all nearby pack members of that animal's species may start attacking their attacker, possibly killing them.

Mad Animal

When this event occurs, a single random animal on the map is driven insane. Like with the psychic wave, the insane animal will charge toward the nearest human, attacking any other animal or obstacle (doors, etc.) in its way. This event is particularly dangerous if a Boomalope or Boomrat turns, as they explode upon death and the latter can also reliably catch up to an unmodified human regardless of traits.

Generally Bad


A group of ravenous wood-munching alphabeavers appears at the edge of the map. They will continually eat trees (including any you're farming) and Saguaro cacti until they consume them all, unless you eradicate them first.

It is recommended to bring more than one colonist to exterminate them if you choose to. If one turns manhunter, the whole pack will become manhunters, which can turn individually weak beavers into a small army of killing machines.

Bad will

Relations have broken up to -100 points. You've done something to anger another faction bad enough that they are now hostile to yours. This can happen if you arrest a faction member of theirs, rob one of their caravans or if they take too much friendly fire from your colonists, among other reasons.

Badwill: Friendly traders face a mechanoid raid, losses members and turns against the player.

Breakdown: (Machine)

One of your machines will break down and will not work until repaired with a component. If this happens to a hydroponics basin, any crops in it will wither and die unless repaired immediately.

This only applies to machines using electricity.



A couple splits, complete with the Mood and Social penalties for both colonists.


Character gains an age-related illness such as a bad back or cataracts. Some of these may be 'cured' by replacing those parts with bionics.

Due to age or a pre-existing health condition, they can also have a heart attack.



This event randomly destroys 80% the colony's planted crops across the map, including hydroponic crops grown indoors. Be sure to keep a reserve of food to counter the issue or resort to hunting until more food can be grown.

Devilstrand mushrooms or any other plants with a 15-day or longer growing period are immune to this event.

In Alpha 18 blight will spread as opposed to destroying all planted crops.


Bonded animal's death

An animal with bond to a colonist dies, affecting mood negatively.

This isn't a random event on its own, instead being a possible consequence to them. It can occur by slaughtering, euthanizing or intentionally attacking the animal. Wild predators may hunt and kill your animals, including bonded ones. Enemies may target your animals during attacks or even hit them unintentionally while shooting at your colonists. Bonded animals can also fall into traps.

Bonded animal dies affecting the owner's mood.

Bonded master's death

The inverse of a bonded animal's death. This time, it's the master who dies, through causes such as enemy raids or disease.

When this happens, any animal that is bonded to the master will have a mental break. It can be a less dangerous one such as a dazed wander, or a more dangerous one such as a berserk rage.

This is one of the only situations where animals can have non-manhunter mental breaks.

Caravan Ambushed / (manhunters)

While travelling, one of your caravans will be attacked. The game will give you a mini map to defend it.

The attackers can be an enemy faction lying in ambush or a rampaging manhunter pack your caravan unfortunately trespasses upon.

Caravan destroyed

All human members of your caravan have died. Anything carried by the caravan, including animals, will be lost to the wild.

Caravan destroyed.png

(Colonist) hit trap

One of your stupid colonists stepped on one of your deadfall traps and managed to set if off.

Crashed ship part

For help guide, see Defense_structures#Crashed_ships .

A large piece of an ancient ship crashes nearby or within the colony, scattering chunks and debris. They have various negative effects on the map. To stop the effect, destroy the ship part by manually attacking it. Upon attacking it however, mechanoids will emerge to defend it. The size of the group depends on storyteller difficulty and colony wealth. All ship parts drop amounts of steel, steel chunks and silver once destroyed.

Ship parts of either type will change the weather around them to snowfall, even in deserts in the summer.

Poison ship

A Poison Ship event kills plants in an expanding circle, eventually reaching the entire map. Do not confuse this with the plant killing snow aura present on both Poison Ships and Psychic Ships. The poison kill crops randomly, including plants grown in Hydroponics basins. The affected areas will ultimately have dramatically reduced chances of maturing simple crops, and slower crops will end up nearly impossible to grow.

Poison ship.png

Psychic Ship

A hostile AI core projects a psychic drone that negatively affects the mood of all humans on the map. It begins low and grows progressively stronger the longer it stays. Therefore, it should be destroyed as quickly as possible. Colonists with psychic sensitivity traits may benefit or suffer more from its effect. The ship's AI is also capable of emitting psychic pulses that can drive a colonist to an immediate mental break, or nearby animals to madness.

Once destroyed, the AI persona core will remain for you to pick up in addition to the normal item drops. These are very rare and valuable items as they are a key component in ship computer cores.

Psychic ship.png

Drone intensifies

If left alone long enough, the drone emitted from a crashed psychic ship will get worse as time goes on. Every 2.5 days the drone gets stronger, from -5 mood at the beginning up to -50 after 7.5 days.

(Drug) addiction

A colonist has taken too much of a drug and is now addicted. They will now need to regularly take that drug or suffer the withdrawal effects.

Cold Snap

A cold snap makes the temperature of a colony drop for several days. It only occurs when the map's summer temperature is greater than 0°C and less than 15°C. Colonists will complain about the cold, especially sleeping in it if their rooms are not properly heated.

While this is generally good for item preservation, it can kill off crops, influence colonist moods and cause Hypothermia if colonists or animals stay in non-heated areas for a prolonged time. It also renders most of the plants in the area inedible (unless when it happens in warmer areas in which some plants are still edible), potentially causing tame animals to starve to death and wild ones to leave the map. With no other food, predators may attack colonists and tame animals. Snowing may also happen, depositing thick snow that can slow down outdoor movement significantly.

Jackets, Dusters, parkas and tuques provide cold insulation for colonists, protecting them while they're awake, though they don't prevent mood loss caused by sleeping in cold areas.


A hostile faction approaches your caravan and demand that you give them items and hand over members as slaves. If you don't, they will proceed to assault the caravan.

You can see their number when they are demanding you hand over items.

Disease (Type)

Several of your colonists and/or prisoners will be afflicted with a disease. Which disease they are infected with depends on the biome. The number of infected depends on the disease and the cruelty of the storyteller. Only humanlikes can catch infectious diseases.

Non-blunt trauma wounds, treated or not, also have a chance to get infected. The chance depends on treatment quality and cleanliness of the environment. Animals can also catch infections at a greatly reduced rate compared to humans.


During a solar eclipse, solar generators cease producing power, and outdoor crops stop growing. Be sure to have power and food stored for times like these, or an eclipse coupled with a raid could be the death of an unprepared colony.


A localized, intense lightning storm in one area of the map. Causes big fires. Clicking the envelope icon offers the option to jump to the location where the strikes will be. It also has the side effect of disabling rain.

It affects a area with a radius between 45 to 60 tiles, and while active lightning will strike between every 320 ticks (5.33 secs) to 800 ticks (13.33 secs). Once it finishes no more rain can fall until 30,000 ticks (500 secs) has passed.


Heart attack

A character or tamed animal suffers a heart attack. Characters will go to rest to any bed assigned to Medical instead of returning to his or her own assigned bed and animals will return to the nearest empty animal bed or sleeping spot. Doctors will then proceed to attempt to resuscitate the victim, using medicine up to their assigned medicine level if available.

During a heart attack, people or animals can fall unconscious or even die if not treated in time.

Heat Wave

A heat wave sweeps the colony, driving temperature up for several days. It only occurs when the map's summer temperature is equal to or exceeds 20°C. Colonists will complain about the heat, especially sleeping in it if their rooms are not properly cooled. Additionally, things might rot in inadequately cooled freezers. There is also a chance for a fire to randomly appear on the map which can quickly spread and burn down an entire colony.

Heat waves sometimes can be deadly to unprepared colonies, mostly tribal ones since they have it harder to build air conditioners since they start without that technology and it takes longer to unlock it. For them it's advised to use passive coolers in rooms or food stockpiles to prevent food from rotting quickly and colonists and animals from getting a heatstroke. Dusters and cowboy hats provide heat insulation for colonists, protecting them while they're awake, though they don't affect mood caused by sleeping in hot areas.

Additionally some animals will leave the map if the temperature gets higher than they can stand.

Mental break: (Type)

One of your colonists or prisoners has had it and has a mental break. During this time, colonists will be unavailable for control or colony work. Colonists or prisoners having a break may possibly cause more trouble for themselves or others, depending on the type of break. They may attack other people or animals (including dangerous ones), wander into a firefight, set fires, get out of their bed when they need medical treatment, etc. If you need to get your humans to stop doing what they're doing, draft another colonist and attempt arrest them. Warning: humans may refuse to be arrested and will gain a mood debuff if arrested. Downed colonists don't have to be arrested and may be rescued instead.

Overdose: (Colonist)

One of your colonists or animals has taken too many drugs in a short amount of time and potentially permanent damage or death could occur.

Prison break

Prisoners have staged a breakout! They have somehow defeated the door lock and may seek weapons, fight, or try to escape. Prisoners are more likely to attempt breakout when they are unhappy, numerous and healthy. Prisoners who can't walk can't leave their beds to escape.

Since prisoners are technically part of the enemy faction, friendlies will engage them. This is helpful if you need to contain a larger break, though the use of weapons means they have a higher chance of outright killing the prisoner. Recapturing escaped prisoners from factions that have turned friendly since that prisoner was originally captured will not affect relations with that faction.

Prison break

Psychic Drone

Drone in this case does not refer to "Unmanned Aerial Vehicle" but instead "To produce a low-pitched hum or buzz."

A Psychic Drone phenomenon affects all colonists of a randomly chosen gender, giving a strong negative moodlet (-15 for normal colonists). Colonists have no choice but to endure it as the point of origin is off map. Psychic sensitivity traits can be a big factor in the threat posed by this event. There`s also a positive version called Psychic soothe.

Animals are not affected.

Rejected proposal

After two characters fall in love, one of them proposed marriage but is turned down. The proposing one suffers a mood penalty of -18 for 25 days. They will stay together and may accept the offer in the future.

Rejected proposal.png

Roof collapsed

All roofs must be supported by a wall or rock within 6 spaces with roof sections in between itself and that wall or rock. If either of these conditions changes, then the roof will collapse.

If nothing is crushed by the roof, then a simple notification will trigger instead. If something (be it an item or a colonist) was hit then they will take damage and the envelope alert will trigger.

If demolishing a building, it's recommended to use the Expand No Roof Area tool to remove the roof first before deconstructing the walls.

Solar Flare

Solar flares cause all electrical items on the map to stop working for the duration of the event. Solar flares are particularly dangerous for colonies that rely on turrets for defense, as they will be vulnerable to any raid that arrives during the solar flare.

Solar flares will cause coolers to fail, causing any frozen perishable goods to begin spoiling if warm enough outdoors. In cold areas, heaters will fail causing ground based greenhouse crops to quickly die as well. Cold temperatures can be abated with campfires though. Colonists will also be at risk of getting heatstroke or hypothermia if you're in an area with extreme temperatures and don't have other temperature control devices.

Crops grown in hydroponic basins will rapidly die regardless of the temperature. It's recommended to quickly Harvest any crops that can't be saved before they die.

Toxic Fallout

A distant chemical fire has released a plume of poison over this entire region. Any person or creature not under a roof will be slowly sickened by the toxic dust settling out of the atmosphere. It will last for anywhere between a few days to over a month.

Toxic fallout causes Toxic buildup, which can permanently sicken a person with dementia or eventually a carcinoma if it progresses far enough (40% severity onwards). However, the latter is treatable via operation with the use of at least Medicine, or removed via a surgery.

Plants will wither under the fallout and usually wipe out all wild animals, posing a serious threat to tamed ones unless they are restricted to a roofed area. If you are running low on food, wait for animals to die and then butcher their corpses, though they will quickly rot under the fallout.

Once moved to a safe place, creatures will need up to 12.5 days to recover.

Volcanic Winter

A distant supervolcano has erupted and begun spewing millions of cubic kilometers of ash into the atmosphere. Ash in the atmosphere will obscure the sun. Temperatures will drop and plants will suffer for lack of sunlight. It could pass in a few weeks, or it might last many months.

Solar panels will not produce as much power, and plants will grow slower. Volcanic Winters also appear to significantly reduce the inflow of wildlife (observed in a Temperate Forest, 300x300, very few animals came in from Spring-Summer when there'd normally be many), which can easily lead to meat shortages and famine if you don't have sufficiently large farms for your colony.

When the event finishes the message: "Most of the volcanic ash has settled." will be displayed.

Generally Good

Ambrosia sprout

A grove of the mysterious ambrosia bush has sprouted nearby! If you wait for the plants to grow, you'll be able to harvest the delicious, pleasurable, and slightly addictive fruit.

A good way to harvest them is to draw a growing zone over them, but forbid sowing. Colonists will then automatically harvest the bushes when they are fully grown.

Ambrosia sprout.png

(Animals) join

Tamed dogs or farm animals join your colony.

Animals join

(Animal) self-tamed

A random animal on the map becomes self tamed.

Thrumbo self-tamed.png

Previously tamed animals which return to the colony can self-tame. When doing so they retain all training they previously had.

Caravan meeting by (Caravan ID)

This is a pop up window rather than an event with envelope icon. While away from your bases, your caravans may randomly encounter other traders out in the world who would be happy to trade with you. Of course, you also have the option to attack them. Be careful, trade caravans are usually well defended.

Cargo pods

From time to time, cargo pods from the wreckage of the ship will fall out of orbit and land on your map. Each drop will contain only one type of resource in a random amount. The remains of the pods become pieces of slag, which can be refined into usable metal at an electric smelter. The pods have a chance of crashing through the roofs of any buildings, damaging any nearby furniture and structures.

Cargo pods.png

Escape Pod

Rarely, an escape pod will crash land nearby. The occupant will be incapacitated, but can be rescued and treated or be captured and possibly recruited into the colony. It's possible for the person to be related to someone in the colony. This is indicated on the notice as Escape pod (relationship). Usually, this pawn will join the colony once healed. Still, the pawn has the opportunity to walk off on their own once healed. If you do nothing, they have the same opportunity to stand on their own after awhile and walk off, depending on their injuries.

For a near-guaranteed way to recruit them, capture rather than rescue them. Their recruitment difficulty percentage is usually low and this will also train your warden's Social skill.

Since you rescued him/her. Character joined your group!

Good will

This notification will appear once relations have been improved with a Hostile faction enough that they will no longer be hostile. Common ways to improve relations include releasing prisoners from their faction or gifting silver via the comms console. Note that released prisoners must leave the map safely to receive the bonus.

Good will.png

Marriage is on!

A couple that has been together for awhile will announce their engagement. The wedding will take place some time in the future. This allows players to have enough preparation time to build a Marriage spot if they choose. If not, any Gather Spot will do. When the day of the wedding arrives, it will take place regardless of the entire colony's attendance.

Colonists who do not reach the meeting point on time, such as those sleeping, fighting fires or lying incapacitated in bed, will not gain the mood buffs. A quick Draft and Undraft should be enough to distract all capable colonists to attend. Colonists in caravans cannot attend.

If the couple happens to be busy at the exact moment the wedding is to take place, for example, because they are loading a caravan, those who are not members of the trade group will remain waiting at attendance and perform no task at all except for eating until the couple comes back. This can cause characters to get binges and no wardens or doctors looking out for prisoners can easily let captives break out.

Marriage is on.png

New lovers

A character woos another into a romance and she agrees

Two characters fall in love. Build them a 2 pawn bed and assign it so they can sleep together. This avoids a mood debuff for both colonists and occasionally gains them another buff.

New recruit

You'll get this notification whenever a Warden has succeeded in recruiting a prisoner.


One of your colonists will throw a party, improving the moods of all attendees for some time and providing an opportunity for rapid Social changes. They will usually have beers and smokeleaf joints if available. Note that the player may have to wake up any sleeping colonists such as Night Owls or otherwise distract other colonists from their work so that they attend the party. An easy way to do this is by quickly drafting and undrafting them.

Colonists will continually get stacking mood buffs while enjoying themselves at a party. Each stack adds +1 to mood, lasts 10 days and stacks up to 15 times.

The party by default will happen around an item checked as a Gather Spot such as a table, but may be overridden by building a party spot.

Similar to marriage ceremonies, characters that do not reach the party on time don't get the mood buffs.

Psychic Soothe

When this event triggers it gives a positive mood modifier (+15 for normal colonists) to all colonists of a randomly chosen sex. The event lasts between 1.5 to 3.5 days. It can be considered the opposite of the Psychic Drone.

Psychic soothe.png

Quest completed

You've done what was requested by other factions and will receive the reward at your nearest(?) base via pods, along with an improvement in relations. The reward will arrive forbidden, so you will have to un-forbid it before your colonists will haul it in.


Traders from other non-hostile factions can stop by your colony, whether specifically requested via the comms console or randomly on their own.

Trade Ship In Range

When an orbital trade ship passes near the colony, players may spend silver to obtain resources or weapons, or alternately sell excess resources or weapons for silver. You will only receive this notification if you have built a comms console and it's powered.

You need to build orbital trade beacons so you can beam items up to the ship to actually carry out transactions. You can still check the items for sale even without them however.

Pirate Merchant In Range

Slave traders are rarer than regular traders. They traffic in that most precious of cargo: fresh colonists. Players can also sell unwanted prisoners to slave traders, however any colonists without the psychopath trait will suffer a mood penalty for doing so and the colonist doing the selling will receive a social penalty. As with regular trade ships, you will only receive this notification if you have built a comms console and it's powered.

Wanderer joins

A random colonist arrives from a map edge and joins the colony immediately. Like most events involving other people, the wanderer has a chance to be related to an existing colonist. They will most likely be naked, so have some spare clothes ready just in case. Notification: A villager named (name) has arrived and is joining the colony. (Gender) is a (backstory).



Somebody who is already married starts an affair with a single person.


Area revealed

A hidden area has been opened up on the map, with an appropriately colored event envelope regarding the nature of the reveal. It's often associated with opening an Ancient Danger, which are usually easy to find due to their large rectangular shape. It can also occur with opening buildings on maps, whether freestanding buildings on a map or opening enemy buildings during your own raids. It can also occur when mining, usually by accident when long straight lines are selected for digging. However, sometimes entrances to these areas can be seen on the map. Look along the edges of a mountain for one or more visible edge blocks facing inward. Mining this section out can reveal new mineral riches, new farmland, new animals, new threats... or absolutely nothing.

Attack begun

This notification will appear when a caravan has arrived at a settlement chosen for attacking.

Caravan Ready

Once you've designated a caravan, you'll get this notification once all of the colonists, prisoners, animals and items have been assembled and left the map. It is now ready to send to other settlements or form another settlement of your own, if you've enabled multiple settlements in the game's settings.

(Leader) died: (Faction)

This alert uses the title of the leader in question. For example, if the boss of a pirate band dies you will see 'Boss died'.

Occasionally, the leader of another faction will die. The popup window will announce his or her successor.

This will also happen if the leader personally comes to raid your base and is killed in action. Killing an enemy faction leader will give a mood buff for awhile for the colonist that accomplished this.

New (Leader): (Faction)

Similar to the Leader Died event, except this one occurs only when you've succeeded in both capturing and recruiting another faction's leader. The leader then places first at the colonist bar, instead of last.

Chief of a hostile tribe recruited to colony.

Rare Thrumbos

One or more thrumbos will spawn at the edge of the map, staying around for awhile to eat anything they can, including your crops. The player can attempt to hunt or tame them, both of which are very difficult. If no action is taken, they will leave on their own after a few days.

Ship chunks

One or more ship chunks fall into the map. They can be deconstructed for components and a small amount of steel, but they can damage structures where they land, punching through roofs, and extremely rarely land right on top of a colonist, killing them.

There is no notification for this event, simply a message on the top of the screen.

Trauma savant

A colonist has suffered a brain injury and has gained great abilities from it at the cost of others, such as increased manipulation while losing the ability to speak and hear. It also restores the brain to full functioning despite the injury.

This only has a 12% chance to trigger on receiving brain injuries.

Traveler Visit

Occasionally, one or more members of a friendly faction will arrive, just passing through. They'll enter at one edge of the map and proceed across the map. They'll exit the map upon reaching another edge.

A drafted colonist can be directed to capture (arrest) one of the travelers. However, that entire faction will immediately turn hostile including any other travelers currently there, once the arresting colonist reaches the target.


Relationship, in this case is Fiancee.

Normally this isn't an event on its own, but rather an addition to other events that involve other pawns such as raids or traders arriving. In any instance of other humanoids visiting your base, there is a chance that one or a few of the visitors or raiders may be related to your existing colonists. Clicking the event envelope will show the relation.

If the visitor instance itself was an event, it will add "(Relationship)" onto the end of the envelope title. If the instance would only have been a notification otherwise such as other factions crossing your map, it will become a Relationship event on its own.


Friendly faction members may stop by your settlement. Occasionally, they will have a few goods to trade. Like a regular trader they will mill about the player's colony for awhile. Unlike a regular trader, they don't have many goods with them, nor do they have as much silver to buy your goods.

Visitors possess no higher purpose otherwise. Still, their arrival could prove advantageous if the colony is assaulted by a mutual enemy while they are present.

Sometimes there will be a singular visitor. In this case, the game will notify you of the backstory of that visitor.

World quest incidents

Bandit camp opportunity

Some ruffians are causing trouble nearby and other factions will pay you to wipe them out.

The bandit camp never times out, and are weaker than regular enemy bases.

Destroying them increases goodwill by 8 and returns a payment equivalent to 2000 - 3000 worth of silver.

Caravan request

Other friendly factions may make a special trade request of you. The popup will specify which goods they want, the price they're willing to pay for them and the deadline they want them by. The number of goods they want can be checked afterward by clicking on the requesting colony on the World tab.

This event is more likely the more colony wealth you have, up to 2x chance at 300,000 wealth.

Item Stash Opportunity (Time Remaining)

Another faction leader will tell you of the existence of an item stash on the map. The items will often be guarded and others will gather the items first if you aren't fast enough getting to them.

There is a 50% chance that they will request a payment between 50 and 500 silver. You must have enough silver near an orbital trade beacon to pay the price, and it must be done within 24 hours. Oddly enough, you can receive this message from the other factions without building a comms console. Item stashes will timeout between 10 - 30 days, and have anywhere between 5 - 9 items or stacks.

The total value is around 2000 - 3000 silver. It is possible that the stash generates with an initially hostile faction guarding it, but Good will triggering will turn them friendly. Once the guardians are defeated, you will have two days and a half countdown timer before the game automatically reforms your caravan. But the game will not collect the items for you, so you must gather them yourself before it expires or just reform by yourself before the game does it for you.

Game endings

When these happen, they signify that your game has ended, one way or another.

Game over

This happens when all your colonists are either dead, missing or left the planet. The game will show a UI which says that everyone is gone or dead, and allows you to return to the main menu or continue playing. It also says that someone may find a use for the wreckage of your base.

Should you decide to continue playing, events will continue to happen, which can affect the ruined base but not anyone. You can strike lucky and roll 'Wanderer joins' or 'Refugee chased' events, giving you a colonist to rebuild from.

Welp, time to start a new game I guess...


This event can only happen by configuring the starting scenario.

When it happens, the screen will fade to white, and a message will show that the planet is obliterated by a planetkiller and that you did not survive.

Unlike your regular 'Game Over', you cannot continue the game. Saved games (including permadeath) can be continued from their last saves, however.


Event Data

Category Name Common Name Chance Favorability Min Time Before
Repeat (days)
Disease Flu Flu varies by biome Bad varies by biome
Disease Plague Plague varies by biome Bad varies by biome
Disease Malaria Malaria varies by biome Bad varies by biome
Disease SleepingSickness Sleeping Sickness varies by biome Bad varies by biome
Big Threat RaidEnemy Raid 9.0 Bad 0
Big Threat AnimalInsanity Mad Animals!: (Animal name) 1.0 VeryBad 1
Big Threat ShipPartCrash Psychic Ship 1.5 Bad 30
Big Threat ManhunterPack Manhunter Pack 2.0 Bad 15
Big Threat Infestation Infestation 2.8 Bad 20
Special RaidFriendly Friendlies 3 Good 0
Small Threat AnimalInsanitySingle Mad Animal 5 Bad 3
Small Threat ColdSnap Cold Snap 3 Bad 30
Small Threat HeatWave Heat Wave 3 Bad 30
General Bad Beavers Beavers! 1 Bad 15
General Bad Eclipse Eclipse 3 Bad 30
General Bad SolarFlare Solar Flare 1.5 Bad 30
General Bad PsychicDrone Psychic Drone 1 Bad 30
General Bad ShortCircuit Zzzt... 1.2 Bad 15
General Bad CropBlight Blight 2.5 Bad 8
General Bad ToxicFallout Toxic Fallout 0.25 Bad 180
General Bad VolcanicWinter Volcanic Winter 0.11 Bad 280
General Good TraderArrivalGeneral (Trader type) 13 Good 0
General Good TraderArrivalSlaver Pirate Merchant 4.5 Good 0
General Good TravelerGroup Travelers 8 Good 0
General Good VisitorGroup Visitor(s) 8 Good 0
General Good WandererJoin Wanderer Join 0.4 VeryGood 0
General Good ResourcePodCrash Cargo Pods 6.0 Good 0
General Good RefugeePodCrash Escape Pod 1.5 Good 0
General Good PsychicSoothe Psychic Soothe 1.0 Good 30
Neutral RefugeeChased Refugee Chased 2.5 Neutral 15

Weight of each disease per biome
Biome Name Flu Plague Malaria Sleeping
Arid Shrubland 100 100 0 0 30 30 60 60
Desert 100 100 0 0 30 30 60 60
Extreme Desert 100 80 0 0 30 30 40 40
Boreal Forest 100 100 0 0 30 30 50 50
Tundra 100 80 0 0 40 40 30 30
Ice Sheet 100 80 0 0 30 30 0 0
Sea Ice 100 80 0 0 30 30 0 0
Temperate Forest 100 100 100 0 30 30 50 50
Tropical Rainforest 100 100 160 140 30 30 80 80

Mean time per disease by biome (in days)
Biome Name Mean Time
Between Diseases
Flu Plague Malaria Sleeping
Arid Shrubland 60 228 228 0 0 760 760 380 380
Desert 80 304 304 0 0 1013.33 1013.33 506.67 506.67
Extreme Desert 90 288 360 0 0 960 960 720 720
Boreal Forest 50 180 180 0 0 600 600 360 360
Tundra 80 256 320 0 0 640 640 853.33 853.33
Ice Sheet 80 33.33 26.67 0 0 10 10 0 0
Tropical Rainforest 30 216 216 135 154.29 720 720 270 270