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

2,354 tracked gamers have this game, 62 have completed it (2.63%)

Achievement Details

Sharpshooter in Alien Swarm

Sharpshooter15

Complete a mission with better than 90% accuracy.

  • Unlocked by 980 tracked gamers (42% - TSA Ratio = 1.54) 2,354  
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