Alien Swarm achievements
1,833
(660)

Alien Swarm

3.4 from 75 votes

There are a maximum of 66 Alien Swarm achievements worth 1,833

2,539 tracked gamers have this game, 64 have completed it (2.52%)

Achievement Details

Armory Access in Alien Swarm

Armory Access22

Unlock all the available weapons.

  • Unlocked by 513 tracked gamers (20% - TSA Ratio = 2.22) 2,539  
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