Alien Swarm achievements
1,853
(660)

Alien Swarm

3.3 from 71 votes

There are a maximum of 66 Alien Swarm achievements worth 1,853

2,370 tracked gamers have this game, 64 have completed it (2.70%)

Achievement Details

Under the Gun in Alien Swarm

Under the Gun15

Roll under a Swarm Ranger projectile.

  • Unlocked by 1,082 tracked gamers (46% - TSA Ratio = 1.47) 2,370  
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