Alien Swarm achievements
1,810
(660)

Alien Swarm

3.3 from 78 votes

There are a maximum of 66 Alien Swarm achievements worth 1,810

2,671 tracked gamers have this game, 74 have completed it (2.77%)

Achievement Details

Under the Gun in Alien Swarm

Under the Gun14

Roll under a Swarm Ranger projectile.

  • Unlocked by 1,309 tracked gamers (49% - TSA Ratio = 1.42) 2,671  
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