Alien Swarm achievements
1,909
(660)

Alien Swarm

3.4 from 65 votes

There are a maximum of 66 Alien Swarm achievements worth 1,909

2,215 tracked gamers have this game, 51 have completed it (2.30%)

Achievement Details

Pistols Expert in Alien Swarm

Pistols Expert31

Kill 250 Swarm with Twin Pistols.

  • Unlocked by 237 tracked gamers (11% - TSA Ratio = 3.06) 2,215  
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