Deadfall trap

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Deadfall trap


A suspended spiked weight held up by a delicate trigger. When the victim disturbs the trigger, the weight is released and falls on his head or torso.

1 ˣ 1
Steel 50
Steel 38


A deadfall trap slows down any pawn walking over it but once tripped, it has zero path cost. The trigger chance is of 80%. The damage is rarely enough to cause a fatality to humans or large animals and is less likely to be triggered by small animals. The base damage varies according to the material is was built from. The damage type is sharp melee, which may strike mainly on the head and torso and usually causes bleeding.

When a colonist or prisoner triggers the trap, a yellow envelope alert appears to notify the player.

Colonists and friendlies are aware of their location and will walk around them, but only if another short route is available. Traps placed in a checkerboard pattern are easily navigated by colonists and friendlies by pathing diagonally. Enemies will not be able to avoid traps placed in long continuous lines, or in chokepoints like a narrow hallway.


Once tripped, a deadfall trap can be rearmed only by a colonist with the hauling job type. Colonists will first remove any object laying on the trap before rearming it.

Automatic rearming

Deadfall traps can be set to auto-rearm, which automatically designates the trap to rearm each time it is tripped. Setting a trap to auto-rearm should be done while it is still armed. If a trap is already tripped, turning on the auto-rearm has no immediate effect. The trap must be manually rearmed first.

Manual rearming

  • Select a colonist with the hauling job type and right-clicking on the trap.
  • Select the trap.
  • Click Rearm trap, or press the hotkey (default M). (A trap set to rearm is indicated with a small red V.)
  • Select a colonist with the hauling job type.
  • Right-click the trap and select 'Prioritize rearming trap'.

Material Cost Damage HP
Steel.png Steel 70 60 40
Plasteel.png Plasteel 70 72 112
Wood.png Wood 70 18 16
Uranium.png Uranium 1400 66 100
Silver.png Silver 1400 30 28
Gold.png Gold 1400 18 24
Granite Blocks.png Granite 70 39 68
Limestone Blocks.png Limestone 70 36 62
Marble Blocks.png Marble 70 36 48
Sandstone Blocks.png Sandstone 70 30 56
Slate Blocks.png Slate 70 36 52