Difference between revisions of "Mini-turret"

From RimWorld Wiki
Jump to navigation Jump to search
 
(52 intermediate revisions by 7 users not shown)
Line 1: Line 1:
{{Rewrite|reason='''Outdated information and both better analysis and standardization of format are needed'''}}<onlyinclude>{{infobox main|security|
+
{{Infobox main|security
 
| name = Mini-turret
 
| name = Mini-turret
| image = ImprovisedTurretA16.png|Mini-turret
+
| image = ImprovisedTurretA16.png
 
| description = A portable automatic turret. Requires steel to refurbish its barrel after heavy use. May explode when damaged. Its dumb AI brain can't be directly controlled, so beware of friendly fire.
 
| description = A portable automatic turret. Requires steel to refurbish its barrel after heavy use. May explode when damaged. Its dumb AI brain can't be directly controlled, so beware of friendly fire.
| type = Security
+
| type = Building
| placeable = Yes
+
| type2 = Security
 +
| placeable = true
 +
| path cost = 50
 +
| passability = pass through only
 +
| cover = 0.4
 +
| minifiable = true
 
| size = 1 ˣ 1
 
| size = 1 ˣ 1
 +
| mass base = 8
 +
| flammability = 0.7
 
| hp = 100
 
| hp = 100
| cover = 0.4
+
| sell price multiplier = 0.7
| flammability = 0.7
+
| beauty = -20
| minimum skill = 5
 
| mass base = 8
 
 
| power = -80
 
| power = -80
| beauty = -20
+
| terrain affordance = light
| damage = 11
+
| research = gun turrets
| armorPenetration = 15
+
| thingCategories = BuildingsSecurity
| range = 29
+
| skill 1 = Construction
| accuracyTouch = 70
+
| skill 1 level = 5
| accuracyShort = 64
+
| work to make = 1800
| accuracyMedium = 41
+
| stuff tags = Metallic
| accuracyLong = 22
+
| resource 1 = Stuff
| accuracyAvg = 60.4
+
| resource 1 amount = 30
 +
| resource 2 = Steel
 +
| resource 2 amount = 70
 +
| resource 3 = Component
 +
| resource 3 amount = 3
 +
| damage = 12
 +
| armorPenetration = 18
 +
| range = 28.9
 +
| accuracyTouch = 77
 +
| accuracyShort = 70
 +
| accuracyMedium = 45
 +
| accuracyLong = 24
 +
| accuracyAvg = 54
 
| mode = Burst
 
| mode = Burst
 
| burst = 2
 
| burst = 2
Line 28: Line 45:
 
| stoppingPower = 0.5
 
| stoppingPower = 0.5
 
| DPS = DPS
 
| DPS = DPS
| stuff tags = Metallic
 
| research = Gun turrets
 
| work to make = 1800
 
| resource 1 = Stuff
 
| resource 1 amount = 30
 
| resource 2 = Steel
 
| resource 2 amount = 70
 
| resource 3 = Component
 
| resource 3 amount = 3
 
| skill 1 = Construction
 
| skill 1 level = 5
 
 
}}
 
}}
The '''mini-turret''' is a stationary defense mechanism which automatically fires at any enemies entering its range of 24.9 tiles. It fires a 2-round burst with no need for warmup, has a slow 4.8 second cooldown and 96% per-tile accuracy. Mini-turrets are somewhat underwhelming on their own, and need to be placed in large numbers to be effective.  
+
The '''mini-turret''' is a stationary defense mechanism which fires at incoming enemies.
 +
 
 +
== Acquisition ==
 +
Mini-turrets can be constructed once the [[Research#{{P|Required Research}}|{{P|Required Research}}]] research project has been completed. They require {{Required Resources}}, {{Ticks|{{P|Work To Make}}}} of work, and a [[{{P|Skill 1}}]] skill of {{P|Skill 1 Level}}.
 +
 
 +
Alternatively, turrets can be uninstalled and looted from various world sites.
 +
 
 +
== Summary ==
 +
The mini-turret uses the [[mini-turret gun]] weapon. In addition to the weapon's accuracy, the turret itself has a per-tile [[shooting accuracy]] of 96% or equivalent to a [[Shooting]] skill of 8. It fires a 2-round burst, with no need for warmup, but with a slow 4.8 second cooldown.  It has a maximum range of {{P|Range}} tiles.
 +
 
 +
After firing 60 rounds, it needs to be reloaded with {{Icon Small|Steel||80}} [[steel]] by a hauler. This can be adjusted in the [[storyteller settings]], but all default [[difficulty]] settings do not alter this.
 +
 
 +
Mini-turrets ''do'' benefit from [[cover]], following the usual rules of adjacency and angle. The long standing bug regarding this mechanic has since been resolved as confirmed through empirical testing.<!-- This bug was, as mentioned, long standing, but also had been claimed to be fixed several times and had a number of compounding factors confusing the issue, such as displaying a non-existent accuracy penalty. Leave the clarification in for the near future - Harakoni -->
 +
 
 +
Like all turrets, they cannot target enemies through [[blind smoke]] and are temporarily disabled by sources of [[EMP]], with downtime scaling to the EMP damage dealt. Unlike mechanoids, turrets do not adapt to EMP and thus can be continuously restunned.
 +
 
 +
[[File:Turret_range_comparison.png|900px|thumb|center|Visualization of effective turret range of all three turrets, from uranium slug turret (top), to autocannon turret (middle), to mini-turret (bottom). <br>
 +
Green is '''80 - 100% of peak accuracy''', blue is '''50 - 80% of peak accuracy''', red is '''below 50% of peak accuracy''' and grey is '''outside range'''. Gold tiles are spaced every 5 tiles. Values from 1.0.<br>
 +
Per-tile shooting accuracy isn't concerned in these accuracy values.]]
 +
 
 +
=== Explosion ===
 +
Mini-turrets have a 50% chance to explode when damaged below 20% health. The exploding turret will spark and emit a hissing sound for {{Ticks|240}} before exploding, dealing 50 [[Damage Types#Bomb|Bomb damage]] in a 3.9 tile radius centered around the lower left tile of the turret. Bomb damage is multiplied 8x against [[wall]]s, 4x against other impassable structures and plants, and 2x against passable buildings. All nearby raiders will attempt to move out of the blast radius before detonation.
 +
[[File:Mini-turret explosive radius.png|thumb|center|250px|Radius of mini-turret explosion visualized.]]
 +
 
 +
== Analysis ==
 +
{{See also|Defense structures#Turrets}}
 +
 
 +
A single turret isn't much firepower. Each mini-turret is roughly equal to a good [[short bow]] or normal [[recurve bow]] shot with 8 Shooting skill. Even when massed up, turrets are unlikely to handle raids on their own. But they can be useful.
 +
* In large numbers, turrets do add up. A group of turrets, ''when combined with colonists'', can make a meaningful difference.
 +
* Mini-turrets are great as decoys. If a turret is closer to an enemy, enemies will often target it over your colonists. It's better for a [[doomsday rocket launcher]] to hit a turret than a colonist. Turning a turret's power off (such as with a [[power switch]]) will prevent [[manhunter]]s from attacking them.
 +
 
 +
: Turrets can also be used as explosive bait. While [[IED trap]]s are generally more efficient, a turret that happens to explode will severely damage any enemy in melee range.
  
After firing 60 rounds it requires a barrel change to be performed by a hauler, costing:
+
[[Killbox]] structures are natural fits for turrets. Killboxes funnel enemies into 1 place, allowing you to take full advantage of your turrets' firepower. In a killbox or not, you'll want to place turrets at least 4 tiles apart. Otherwise, a single explosion can cause a chain reaction, and destroy all your mini-turrets.
*40 steel in Peaceful and Base Builder difficulty
 
*60 steel in Medium difficulty
 
*80 steel in Rough difficulty and above
 
  
== Construction ==
+
Enemies that are ''unusually clever'', as well as [[sapper]]s in general, will try and avoid a turret's line of sight. While this might seem like a bad thing, a lategame colony can place mini-turrets where you ''don't'' want sappers or breachers to go. Even if your main killbox uses turrets, you can place another, turret-less killbox near your colonist's bedrooms in order to lure sappers in.
Constructing the turret requires [[Research#Gun turrets|Gun Turrets]] to be researched. Note that some [[Scenario system|scenarios]] start with it already researched.
 
  
Alternatively, it can be opportunistically uninstalled and looted from various world sites.
+
=== Material ===
 +
{{Rewrite|section=1|reason=Make into proper paragraphs, expand etc}}
 +
* You should expect turrets to be frequently replaced.
 +
* Steel is the most viable option early-game, but steel turrets aren't durable and won't survive sustained firepower.
 +
* The most effective material is nominally plasteel. It has the most HP and is non-flammable. However, it is relatively high cost and is typically in high demand in armor, bionics, etc. Uranium is commonly received as a quest reward and is significantly less in demand, while offering similar performance.
 +
* As mini-turrets only require {{Icon Small|Stuff||{{P|Resource 1 Amount}}}} [[stuff]], the cost of upgrading is relatively minor. Not including work to build, uranium only increases the cost by {{Icon Small|Silver||{{#expr: {{P|Resource 1 Amount}} * ({{Q|Uranium|Market Value Base #}} - {{Q|Steel|Market Value Base #}})}}}} while making the mini-turret significantly less likely to be destroyed. If the upgrade prevents destruction a single time, it has more than paid for itself. Should mini-turrets be retained past the early game, it is strongly suggested to upgrade them to uranium. Notably, either Uranium and Plasteel are required to withstand a single standard explosion without destruction, and the effect of the chance to wick at 20% health further incentivizes higher HP pools.  
  
==== Materials ====
+
{{Building Stats Table}}
* The Mini-turret is built with {{Required Resources}} in {{Ticks|{{P|Work To Make}}}}.
 
* Steel is the most viable option early-game, but it's advisable to switch them out for plasteel turrets as soon as you can, as steel turrets aren't very durable and therefore can't withstand sustained gunfire.
 
* The most effective material is plasteel. It has the most HP, no flammability as of v1.2, is somewhat easier to obtain mid-late game, and saves steel for other purposes.
 
* You should expect turrets to be frequently replaced, and uranium is too rare and expensive to be practical.
 
* Silver and gold are poor material choices due to their poor durability and extremely high cost.
 
  
 
=== Images ===
 
=== Images ===
Line 67: Line 100:
 
File:GoldenTurret.png|Golden Mini-Turret
 
File:GoldenTurret.png|Golden Mini-Turret
 
</gallery>
 
</gallery>
 
== Usage ==
 
{{see also|Defense structures#Turrets}}
 
 
Used alone or in small numbers, mini-turrets do not provide much additional firepower. However, raiders will often target the turret instead of the colonists if it is closer to them, shielding the colonists from harm until the turret is destroyed. However, attackers will not take an unpowered turret as a primary target. The firepower of the turrets adds up when massed together, to the point where turrets alone can sometimes beat back even massive raids. Larger colonies often build a "[[Defense tactics#Killboxes|killbox]]": An entrance area designed to funnel raiders where turrets can do maximum damage while the raiders' own ability to fight back is minimized. Raiders with long ranged weapons can snipe mini-turrets from outside its range, so forcing them into close range with walls or terrain is recommended.
 
 
The accuracies listed in the infobox are for the base weapon, the [[Mini-turret gun]] - similar to weapons used by pawns both the weapon's accuracy and the pawn's [[Shooting Accuracy]] combine to make the true accuracy. In this instance, the Mini-Turret has a Shooting Accuracy of 96%, equivalent to a pawn with a [[Skills#Shooting|shooting skill]] of 8.
 
 
==Cover bug==
 
As of [[Version/1.3.3117|version 1.3.3117]], despite displaying in the mouse-over box as benefiting from cover, empirical testing demonstrates that this is false and mini-turrets do not benefit from cover at all.<ref>https://i.imgur.com/mq4aojR.mp4</ref>
 
 
== Turret explosion ==
 
[[File:Mini radius.png|thumb|right|300px|Radius of mini-turret explosion visualized.]]
 
 
Turrets have a 50% chance to explode when it reaches 20% health. The exploding turret will spark and emit a hissing sound shortly before exploding a {{ticks|240}} later. All nearby raiders will run in an attempt to get out of the blast radius (3 tiles) to keep their skin intact.
 
 
The explosion deals 50 [[Damage Types#Bomb|Bomb damage]] - which does 400 damage to walls, 200 to plants and impassible buildings, 100 damage to all others structures and furniture, 50 damage to the slag chunks and components that drop, and around 50 damage across multiple body parts to all pawns unlucky enough to get caught in the explosion. Due to this, it's best to space out groups of turrets so that one exploding doesn't create a chain reaction. This is somewhat less of a risk with Plasteel turrets. Doors do not block the explosion.
 
 
{{Building Material Table}}
 
  
 
== Graphs ==
 
== Graphs ==
Line 97: Line 111:
 
== Version history ==
 
== Version history ==
 
* [[Version/0.2.363|0.2.363]] - Made turret look and sound weak to match its functionality.
 
* [[Version/0.2.363|0.2.363]] - Made turret look and sound weak to match its functionality.
* Alpha 3 Auto-turret renamed to Improvised Turret
+
* Alpha 3 - '''Auto-turret''' renamed to '''Improvised Turret'''.
* Beta 19, renamed from Improvised turret to miniturret. Power decreased from 350W and costed decreased, but now requires barrel changes.
+
* [[Version/0.19.2009|0.19.2009]] - Renamed from '''Improvised turret''' to '''mini-turret'''. Power decreased from 350W and cost decreased, but now requires barrel changes.
* 1.1 it was nerfed to fire a 2-round burst, down from 3. <br>
+
* 1.1 - Nerfed to fire a 2-round burst, down from 3.
* [[Version/1.1.2569|1.1.2569]], range was increased from 25 to 29.
+
* [[Version/1.1.2569|1.1.2569]] - Range increased from 25 to 29.
* [[Version/1.1.2618|1.1.2618]] the reload cost was doubled and the fuel capacity was halved, while the damage was increased to 11 from 10.
+
* [[Version/1.1.2618|1.1.2618]] - Reload cost was doubled and the fuel capacity was halved, while the damage was increased to 11 from 10.
 +
* [[Version/1.3.3200|1.3.3200]] - Damage increased from 11 to 12. Accuracy increased: touch 0.7 -> 0.77, short 0.64 -> 0.7, medium 0.41 -> 0.45, long 0.22 -> 0.24. Turret ammo cost is no longer factored by difficulty (previously: Adventure Story and below reduced cost).
 +
* Between [[Version/1.3.3117|1.3.3117]] and 1.4.3580 - Turrets now properly benefit from [[cover]]. Despite displaying in the mouse-over box as such, empirical testing demonstrated that mini-turrets did not benefit at all.<ref>https://i.imgur.com/mq4aojR.mp4</ref>
  
 
<gallery>
 
<gallery>
 
AutoTurret.png|Original sprite of the auto-turret and improvised turret.
 
AutoTurret.png|Original sprite of the auto-turret and improvised turret.
 
</gallery>
 
</gallery>
{{nav|security|wide}}
+
 
[[Category:Security]]
+
== References ==
 +
<references/>
 +
 
 +
{{Nav|security|wide}}
 +
[[Category:Security]] [[Category:Turret]]

Latest revision as of 06:16, 20 November 2023

Mini-turret

Mini-turret

A portable automatic turret. Requires steel to refurbish its barrel after heavy use. May explode when damaged. Its dumb AI brain can't be directly controlled, so beware of friendly fire.

Base Stats

Type
BuildingSecurity
Mass
8 kg
Beauty
-20
HP
100
Flammability
70%
Path Cost
50

Building

Size
1 × 1
Minifiable
True
Placeable
True
Passability
pass through only
Cover Effectiveness
40%
Terrain Affordance
Light
Power
-80 W

Ranged Combat

Mode
Burst
Damage
12 dmg
Armor penetration
18%
Cooldown
288 ticks (4.8 secs)
Range
28.9 tile(s)
Accuracy
77% - 70% - 45% - 24%
Avg. accuracy
54%
Velocity
70 (m/s)
Burst Count
2 (per burst)
Burst Ticks
ticks (0.13 secs)
(450 RPM)
DPS
4.86 (2.63)
Stopping power
0.5

Creation

Required Research
Gun turrets
Skill Required
Construction 5
Work To Make
1,800 ticks (30 secs)
Stuff Tags
Metallic
Resources to make
Stuff 30 + Steel 70 + Component 3
Deconstruct yield
Stuff 15 + Steel 35 + Component 1 - 2
Destroy yield
Stuff 7 - 8 + Steel 17 - 18 + Component 0 - 1
Technical
thingCategories
BuildingsSecurity


The mini-turret is a stationary defense mechanism which fires at incoming enemies.

Acquisition[edit]

Mini-turrets can be constructed once the Gun turrets research project has been completed. They require Stuff 30 Stuff (Metallic), Steel 70 Steel, Component 3 Components, 1,800 ticks (30 secs) of work, and a Construction skill of 5.

Alternatively, turrets can be uninstalled and looted from various world sites.

Summary[edit]

The mini-turret uses the mini-turret gun weapon. In addition to the weapon's accuracy, the turret itself has a per-tile shooting accuracy of 96% or equivalent to a Shooting skill of 8. It fires a 2-round burst, with no need for warmup, but with a slow 4.8 second cooldown. It has a maximum range of 28.9 tiles.

After firing 60 rounds, it needs to be reloaded with Steel 80 steel by a hauler. This can be adjusted in the storyteller settings, but all default difficulty settings do not alter this.

Mini-turrets do benefit from cover, following the usual rules of adjacency and angle. The long standing bug regarding this mechanic has since been resolved as confirmed through empirical testing.

Like all turrets, they cannot target enemies through blind smoke and are temporarily disabled by sources of EMP, with downtime scaling to the EMP damage dealt. Unlike mechanoids, turrets do not adapt to EMP and thus can be continuously restunned.

Visualization of effective turret range of all three turrets, from uranium slug turret (top), to autocannon turret (middle), to mini-turret (bottom).
Green is 80 - 100% of peak accuracy, blue is 50 - 80% of peak accuracy, red is below 50% of peak accuracy and grey is outside range. Gold tiles are spaced every 5 tiles. Values from 1.0.
Per-tile shooting accuracy isn't concerned in these accuracy values.

Explosion[edit]

Mini-turrets have a 50% chance to explode when damaged below 20% health. The exploding turret will spark and emit a hissing sound for 240 ticks (4 secs) before exploding, dealing 50 Bomb damage in a 3.9 tile radius centered around the lower left tile of the turret. Bomb damage is multiplied 8x against walls, 4x against other impassable structures and plants, and 2x against passable buildings. All nearby raiders will attempt to move out of the blast radius before detonation.

Radius of mini-turret explosion visualized.

Analysis[edit]

A single turret isn't much firepower. Each mini-turret is roughly equal to a good short bow or normal recurve bow shot with 8 Shooting skill. Even when massed up, turrets are unlikely to handle raids on their own. But they can be useful.

  • In large numbers, turrets do add up. A group of turrets, when combined with colonists, can make a meaningful difference.
  • Mini-turrets are great as decoys. If a turret is closer to an enemy, enemies will often target it over your colonists. It's better for a doomsday rocket launcher to hit a turret than a colonist. Turning a turret's power off (such as with a power switch) will prevent manhunters from attacking them.
Turrets can also be used as explosive bait. While IED traps are generally more efficient, a turret that happens to explode will severely damage any enemy in melee range.

Killbox structures are natural fits for turrets. Killboxes funnel enemies into 1 place, allowing you to take full advantage of your turrets' firepower. In a killbox or not, you'll want to place turrets at least 4 tiles apart. Otherwise, a single explosion can cause a chain reaction, and destroy all your mini-turrets.

Enemies that are unusually clever, as well as sappers in general, will try and avoid a turret's line of sight. While this might seem like a bad thing, a lategame colony can place mini-turrets where you don't want sappers or breachers to go. Even if your main killbox uses turrets, you can place another, turret-less killbox near your colonist's bedrooms in order to lure sappers in.

Material[edit]

  • You should expect turrets to be frequently replaced.
  • Steel is the most viable option early-game, but steel turrets aren't durable and won't survive sustained firepower.
  • The most effective material is nominally plasteel. It has the most HP and is non-flammable. However, it is relatively high cost and is typically in high demand in armor, bionics, etc. Uranium is commonly received as a quest reward and is significantly less in demand, while offering similar performance.
  • As mini-turrets only require Stuff 30 stuff, the cost of upgrading is relatively minor. Not including work to build, uranium only increases the cost by Silver 123 while making the mini-turret significantly less likely to be destroyed. If the upgrade prevents destruction a single time, it has more than paid for itself. Should mini-turrets be retained past the early game, it is strongly suggested to upgrade them to uranium. Notably, either Uranium and Plasteel are required to withstand a single standard explosion without destruction, and the effect of the chance to wick at 20% health further incentivizes higher HP pools.

Stats table

  • Mini-turret Mini-turret Beauty Work to Build HP Flamma­bility Market
    Value
    Material
    Bioferrite Bioferrite Content added by the Anomaly DLC -20 004,500 ticks (1.25 mins) 200 52.5% 270 Silver
    Gold Gold 0 001,620 ticks (27 secs) 60 28% 3,235 Silver
    Plasteel Plasteel -20 003,960 ticks (1.1 mins) 280 0% 515 Silver
    Silver Silver -14 001,800 ticks (30 secs) 70 28% 535 Silver
    Steel Steel -20 001,800 ticks (30 secs) 100 28% 290 Silver
    Uranium Uranium -20 003,420 ticks (57 secs) 250 0% 420 Silver
  • Images[edit]

    Graphs[edit]

    True DPS over Range

    Version history[edit]

    • 0.2.363 - Made turret look and sound weak to match its functionality.
    • Alpha 3 - Auto-turret renamed to Improvised Turret.
    • 0.19.2009 - Renamed from Improvised turret to mini-turret. Power decreased from 350W and cost decreased, but now requires barrel changes.
    • 1.1 - Nerfed to fire a 2-round burst, down from 3.
    • 1.1.2569 - Range increased from 25 to 29.
    • 1.1.2618 - Reload cost was doubled and the fuel capacity was halved, while the damage was increased to 11 from 10.
    • 1.3.3200 - Damage increased from 11 to 12. Accuracy increased: touch 0.7 -> 0.77, short 0.64 -> 0.7, medium 0.41 -> 0.45, long 0.22 -> 0.24. Turret ammo cost is no longer factored by difficulty (previously: Adventure Story and below reduced cost).
    • Between 1.3.3117 and 1.4.3580 - Turrets now properly benefit from cover. Despite displaying in the mouse-over box as such, empirical testing demonstrated that mini-turrets did not benefit at all.[1]

    References[edit]