The damage type is sharp melee, which strikes mainly on the head and torso and usually causes bleeding. The base damage varies according to the material it was built from. Multiple traps can fall most creatures short of thrumbos and mechanoids. You can help RimWorld Wiki by expanding it.Ī single trap can be fatal to humans or large animals, if it is made of good materials. The 'auto rearm' option, enabled by default, produces a blueprint to replace the trap. Once a spike trap is triggered, it is destroyed. The damage listed is the average sum of the damage inflicted, the AP is incorrectly calculated as if this damage is all dealt at once. Note that both the damage and AP of the attack in the info screen are misleading. AP is the armor penetration of each attack.The armor penetration of the attack is determined by the following equation: This random factor is rolled once only and then applied to all attacks, it is not rolled for each attack. rand(0.8,1.2) is a random factor between 0.8 and 1.2.Material Sharp Damage Multiplier is a material dependent factor.Trap Melee Damage is 100 for spike traps.A spike trap performs 5 of these attacks when triggered. Damage per Attack is the damage each attack does to the target.The amount of damage dealt by each attack is determined by the following equation:ĭamage Per Attack = Trap Melee Damage * Material Sharp Damage Multiplier * rand(0.8, 1.2)/5 When triggered, the spike trap makes five attacks against the pawn that triggered it. In all instances, the nimble trait multiplies the trigger chance for that pawn by 10%, that is, a 10% chance for enemies and 0.04% chance for friendly pawns. Friendly visitors will never trigger a trap. However, colonists and non-manhunting animals are aware of the location of traps, and will avoid pathing over them if reasonably possible. Non-manhunting wild animals have a 25% chance to trigger the trap, and colonists and tame animals have 0.4% (one in 250) to trigger the trap. The base trigger chance is 100% for enemies, including animals affected by the manhunter mental state. Spike traps are single use traps that may be triggered when a pawn of any kind walks over it. Spike traps cannot be placed or constructed directly next to each other nor next to any other kind of trap. Spike traps require 45 Stuff ( Metallic/ Woody/ Stony), 3,200 ticks ( 53.33 secs) of work, and a Construction skill of 3.

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