Poison Spit is an ability used by Thin Men in XCOM: Enemy Unknown.

Spits a cloud of poison at long range, causing a noxious cloud to remain briefly on the battlefield.

– In-Game Description, XCOM: Enemy Unknown


Poison Spit does not inflict base damage on impact, but rather it poisons units, reducing their health by one point each turn for the next 3 turns (3-5 in EW). In addition, poisoned units suffer -20 Aim and -3 Mobility penalties. Poison Spit leaves a 3x3 (target and adjacent tiles) cloud of poison that lingers for three turns, which can affect both soldiers and most alien units that pass through it.

Thin Men are more likely to use Poison Spit when XCOM soldiers are clustered to maximize the number of units they poison.


Aliens: Thin Men, Chryssalids, Zombies, and all Robotic units (Cyberdiscs, Drones, Mechtoids, Sectopods, and Seekers) are immune.

Humans: A Medikit confers immunity to the soldier carrying it, and can be used to cure others of poison. Titan Armor also grants immunity, and all varieties of S.H.I.V.s are immune. In XCOM: Enemy Within, the effects of Poison Spit can also be negated if a soldier is equipped with Archangel Armor, Ghost Armor, MEC suit, or a Respirator Implant.


Poison Spit is actually a useful ability but less for its normal use and more for its exploits. One is the ability to shoot through walls and roofs if a Thin Man has line of sight. Another one is that the poison counter never goes down so affected units are poisoned indefinitely unless healed with a Medikit.

See AlsoEdit

  • Gas Grenade – XCOM-issued hand-thrown ordnance designed to mimic the effect of Poison Spit.
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