Alien Swarm achievements
1,945
(660)

Alien Swarm

3.4 from 59 votes

There are a maximum of 66 Alien Swarm achievements worth 1,945

1,955 tracked gamers have this game, 40 have completed it (2.05%)

Achievement Details

Under the Gun in Alien Swarm

Under the Gun15

Roll under a Swarm Ranger projectile.

  • Unlocked by 871 tracked gamers (45% - TSA Ratio = 1.49) 1,955  
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