Alien Swarm achievements
1,833
(660)

Alien Swarm

3.3 from 76 votes

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

2,552 tracked gamers have this game, 65 have completed it (2.55%)

Achievement Details

Pistols Expert in Alien Swarm

Pistols Expert30

Kill 250 Swarm with Twin Pistols.

  • Unlocked by 285 tracked gamers (11% - TSA Ratio = 2.98) 2,552  
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