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

1,941 tracked gamers have this game, 40 have completed it (2.06%)

Achievement Details

Railgun Specialist in Alien Swarm

Railgun Specialist36

Kill 250 Swarm with a Rail Rifle.

  • Unlocked by 152 tracked gamers (8% - TSA Ratio = 3.56) 1,941  
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