Alien Swarm achievements
1,858
(660)

Alien Swarm

3.3 from 72 votes

There are a maximum of 66 Alien Swarm achievements worth 1,858

2,406 tracked gamers have this game, 61 have completed it (2.54%)

Achievement Details

Electro-Stunned in Alien Swarm

Electro-Stunned21

Stun 6 Swarm with a single Stun Grenade.

  • Unlocked by 525 tracked gamers (22% - TSA Ratio = 2.13) 2,406  
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