Riddled with boils that erupt into spawn pods when hit

Boilers are large, corpulent Infested riddled with pulsating boils, which launch an Infested seed occasionally. When killed, it will burst and launch several Infested seeds that grow into spawn pods. Left unchecked, these spawn pods unleash a variety of smaller Infested to overwhelm their enemies.


  • Boilers waddle into moderate range of a player and create 3 to 5 spawn pods around themselves once they are killed.
  • Once grown on the ground, spawn pods gestate for several seconds before bursting, randomly spawning single or multiple Chargers, Volatile Runners, and Leapers.
    • Spawn pods can be destroyed before gestation is complete.
    • All the gestation products will be at level 10 no matter what, regardless of the rank of the Boiler.
  • Boilers, similarly to other Ancients, can extend one of their arms to reach their targets at longer ranges.

Farming LocationsEdit

These are based on opinions and may not be 100% true. These should be viewed as advice for finding the enemies until better facts are proven. For endless missions, players may need to stay in-mission for a while until these enemies start spawning.

Target Name Planet Type Level Tile Set
IconInfestedB Cholistan Europa Excavation
(Dark Sector)
23 - 33 Corpus Ice Planet
IconInfestedB Capture Orokin Derelict Capture 25 - 35 Orokin Derelict
IconInfestedB Isos Eris Capture 32 - 36 Infested Ship
Demolisher Boiler
Target Name Planet Type Level Tile Set
IconInfestedB Ur Uranus Disruption
(Dark Sector)
30 - 35 Grineer Galleon


  • It is possible to farm a large amount by leaving hives in "Hive" missions and letting them spawn, only destroying the Hive once no more are spawning.
  • Boilers under MindControl130xDark Mind Control will release pods that spawn hostile infested units when damaged or upon death. It is unknown if this is intended.
  • Boiler Sand Shadows from InarosIcon272 Inaros' Devour130xDark Devour release pods that spawn friendly units. It is unknown if this is intended.
  • Boilers are one of the few enemy types (along with the ChargerBrood Mother and Maggot) that cannot be cut in half by Slash b Slash damage.
  • Boilers seem to only attack the player if they have been attacked, though they will still run up to the player on sight.
  • Shooting the Boiler in the orange pustules causes it to release additional spawn pods.
  • Spawn pods deal damage upon landing and upon destruction in an area around them. Using melee can quickly drain a player of their shields and health.


A special variant of the Boiler can be found in the final mission of the Stolen Dreams quest. Apart from having more hitpoints and its pus being colored blue instead of orange, it is otherwise identical to the standard Boiler.

Arcane Boiler General Miscellaneous
Introduced Undetermined
Tileset Orokin Derelict Codex Scans 1
Weapon Infested Spawn Pod Other Drops None
Statistics Mod Drops Organ Shatter 0.46%
Shredder 0.46%
Slip Magazine 0.46%
Warm Coat 0.46%
15 Endo 0.46%
Accelerated Deflection 0.22%
Hornet Strike 0.22%
50 Endo 0.22%
Brutal Tide 0.03%
Firestorm 0.03%
Fossilized 2,200
Slash b+Blast b++Corrosive b+++Cold b-Toxin b‐‐Radiation b‐‐‐

Demolisher Boiler General Miscellaneous
Introduced Update 25.7
Mission Ur Codex Scans 5
Weapon Infested Spawn Pod Other Drops Acceltra Acceltra Blueprint (1.25%)
Akarius Akarius Blueprint (1.25%)
Statistics Mod Drops Bane of Infested 3.75%
Cleanse Infested 3.75%
Expel Infested 3.75%
Smite Infested 3.75%
Infested 3000
Slash b+ Heat b+ Gas b+++ Radiation b‐‐ Viral b‐‐


  • Boilers have no ragdoll, and thus cannot be affected by NekrosIcon272 NekrosDesecrate130xDark Desecrate.
  • On previous versions, the Boiler Eximus Codex page displays the same codex as the regular Boiler, however all Eximus Boiler variants are stuck within each other to the right of the regular Boiler.
    • The "Next" and "Back" buttons are non functional within the Codex entry.
  • Boilers will often fly straight up into the air for no reason, often when hitting enemies or being pushed up by enemies.
  • Spawn pods launched by Boilers have a short delay in deactivating its spawning script upon death. If destroyed when near the end of its spawn duration, its constituent infested units still spawn regardless.



  • Boiler in Codex
  • Example of the Boiler Eximus Codex bug
  • Boiler Arcane in Codex
  • Boiler Arcane Codex Icon
  • Boiler in Simulacrum
  • Boiler Arcane in Simulacrum
  • Boiler concept art
  • Demolisher Boiler, as seen in the Codex

Patch HistoryEdit

Hotfix 27.0.9
  • Fixed miniature Boiler pods that could get stuck lingering in mid-air.

Update 17.10

  • Reduced the required Codex scans for the Arcane Boiler to one.
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