Alien Swarm achievements
1,853
(660)

Alien Swarm

3.4 from 70 votes

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

2,349 tracked gamers have this game, 61 have completed it (2.60%)

Achievement Details

Pistols Expert in Alien Swarm

Pistols Expert30

Kill 250 Swarm with Twin Pistols.

  • Unlocked by 256 tracked gamers (11% - TSA Ratio = 3.02) 2,349  
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