Pipe Bomb

From Tripwire Interactive Wiki
Jump to navigation Jump to search
All information has been verified with update 1043
Killing Floor item
Pipe Bomb
General Information
Perk Demolitions
Cost £1500
Weight 1
Can sell/buy Yes
- -
Weapon Information
Ammo cost (1 unit) £750
Ammo capacity 2
Magazine capacity {{{Magazine}}}
Damage 1500
Impact damage {{{ImpactDamage}}}
Radius 350
Head multiplier {{{HeadMul}}}
Pellets {{{Pellets}}}
Spread {{{Spread}}}
Penetration {{{Penetration}}}
Rate of fire 1.75
Reload time {{{ReloadTime}}}
Regen rate {{{RegenRate}}}
Attachments {{{AddOns}}}

Values listed in brackets are for alternate (secondary) fire.

Pipe bombs are placeable items that function as proximity grenades. When enough specimens are in proximity (see below for how this is calculated) the pipe bomb explodes, dealing heavy damage in a wide radius. It does approximately 5 times as much damage as a grenade, with a slightly larger radius.


  • Do not place too many pipe bombs near each other since they have a dampener that reduces potential damage when in proximity of each other.
  • Try to place in areas that will serve as a fallback, so that they won't be abirtrarily set off by clots and crawlers.
  • When fighting the patriarch, do not place in open areas since he will target them with his rocket launcher. Instead, either place them just around corners or behind closed (but not welded) doors.


This information is provided for those interested in modding, or just those interested in understanding how the game works. To get started with modding, see the modding page.

Calculating detection values

Pipe bombs work by periodically checking if any specimens are inside its detection radius, and then calculate a threat value based on each specimens' MotionDetectorThreat variable. If the combined threat values exceed the threshold (1.0 as of version 1039) the device explodes. Here are the threat values for each specimen:

Specimen MotionDetectorThreat
Clot 0.34
Crawler 0.34
Gorefast 0.50
Stalker 0.25
Bloat 1.0
Siren 2.0
Husk 1.0
Scrake 3.0
Fleshpound 5.0
Patriarch 10.0