Alien Swarm achievements
1,832
(660)

Alien Swarm

3.4 from 76 votes

There are a maximum of 66 Alien Swarm achievements worth 1,832

2,478 tracked gamers have this game, 60 have completed it (2.42%)

Achievement Details

Railgun Specialist in Alien Swarm

Railgun Specialist34

Kill 250 Swarm with a Rail Rifle.

  • Unlocked by 216 tracked gamers (9% - TSA Ratio = 3.37) 2,478  
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