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

2,421 tracked gamers have this game, 52 have completed it (2.15%)

Achievement Details

Armory Access in Alien Swarm

Armory Access23

Unlock all the available weapons.

  • Unlocked by 449 tracked gamers (19% - TSA Ratio = 2.31) 2,421  
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