Alien Swarm achievements
1,853
(660)

Alien Swarm

3.3 from 71 votes

There are a maximum of 66 Alien Swarm achievements worth 1,853

2,361 tracked gamers have this game, 63 have completed it (2.67%)

Achievement Details

Armory Access in Alien Swarm

Armory Access23

Unlock all the available weapons.

  • Unlocked by 441 tracked gamers (19% - TSA Ratio = 2.31) 2,361  
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