Alien Swarm achievements
1,861
(660)

Alien Swarm

3.4 from 70 votes

There are a maximum of 66 Alien Swarm achievements worth 1,861

2,348 tracked gamers have this game, 64 have completed it (2.73%)

Achievement Details

Electro-Stunned in Alien Swarm

Electro-Stunned21

Stun 6 Swarm with a single Stun Grenade.

  • Unlocked by 516 tracked gamers (22% - TSA Ratio = 2.13) 2,348  
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