Alien Swarm achievements
1,893
(660)

Alien Swarm

3.4 from 67 votes

There are a maximum of 66 Alien Swarm achievements worth 1,893

2,226 tracked gamers have this game, 53 have completed it (2.38%)

Achievement Details

Armory Access in Alien Swarm

Armory Access23

Unlock all the available weapons.

  • Unlocked by 414 tracked gamers (19% - TSA Ratio = 2.31) 2,226  
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