Alien Swarm achievements
1,833
(660)

Alien Swarm

3.4 from 75 votes

There are a maximum of 66 Alien Swarm achievements worth 1,833

2,549 tracked gamers have this game, 65 have completed it (2.55%)

Achievement Details

Under the Gun in Alien Swarm

Under the Gun14

Roll under a Swarm Ranger projectile.

  • Unlocked by 1,263 tracked gamers (50% - TSA Ratio = 1.41) 2,549  
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