Alien Swarm achievements
1,945
(660)

Alien Swarm

3.4 from 59 votes

There are a maximum of 66 Alien Swarm achievements worth 1,945

1,944 tracked gamers have this game, 40 have completed it (2.06%)

Achievement Details

Pistols Expert in Alien Swarm

Pistols Expert31

Kill 250 Swarm with Twin Pistols.

  • Unlocked by 203 tracked gamers (10% - TSA Ratio = 3.09) 1,944  
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