Alien Swarm achievements
1,883
(660)

Alien Swarm

3.4 from 67 votes

There are a maximum of 66 Alien Swarm achievements worth 1,883

2,297 tracked gamers have this game, 57 have completed it (2.48%)

Achievement Details

Railgun Specialist in Alien Swarm

Railgun Specialist35

Kill 250 Swarm with a Rail Rifle.

  • Unlocked by 188 tracked gamers (8% - TSA Ratio = 3.49) 2,297  
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