Alien Swarm achievements
1,942
(660)

Alien Swarm

3.4 from 62 votes

There are a maximum of 66 Alien Swarm achievements worth 1,942

2,105 tracked gamers have this game, 47 have completed it (2.23%)

Achievement Details

Railgun Specialist in Alien Swarm

Railgun Specialist36

Kill 250 Swarm with a Rail Rifle.

  • Unlocked by 163 tracked gamers (8% - TSA Ratio = 3.59) 2,105  
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