Gas Grenade.png

The Gas Grenade is a new item introduced in XCOM: Enemy Within.

In-Game Description[]

Our advanced research in alien physiology has allowed us to synthesize a modified version of the poison projected by the Thin Man, and containerize it in grenade form.

– Engineering description, XCOM: Enemy Within

Production Specifications[]

Prerequisites: Thin Man Autopsy (Research)

Production Time: Immediate

Production Cost:

Tactical Info[]

  • Creates a poison gas cloud at impact site
  • Affects all targets in blast radius
  • Poison lasts 1-3 turns, doing damage each turn


  • A Gas Grenade can be quite useful to reliably whittle down enemies' health to 1 HP for capture with an Arc Thrower, without the risk of accidental death with a weapon.
  • EXALT members will run right into the poisonous cloud if a Gas Grenade is tossed near the encoder on Covert Data Recovery missions.