Alien Swarm achievements
1,763
(660)

Alien Swarm

3.3 from 84 votes

There are a maximum of 66 Alien Swarm achievements worth 1,763

3,008 tracked gamers have this game, 92 have completed it (3.06%)

Achievement Details

Railgun Specialist in Alien Swarm

Railgun Specialist33

Kill 250 Swarm with a Rail Rifle.

  • Unlocked by 279 tracked gamers (9% - TSA Ratio = 3.29) 3,016  
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