Alien Swarm achievements
1,858
(660)

Alien Swarm

3.3 from 72 votes

There are a maximum of 66 Alien Swarm achievements worth 1,858

2,417 tracked gamers have this game, 61 have completed it (2.52%)

Achievement Details

Railgun Specialist in Alien Swarm

Railgun Specialist34

Kill 250 Swarm with a Rail Rifle.

  • Unlocked by 202 tracked gamers (8% - TSA Ratio = 3.44) 2,417  
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