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

2,213 tracked gamers have this game, 50 have completed it (2.26%)

Achievement Details

Seal of Quality in Alien Swarm

Seal of Quality14

Seal a door with the welder.

  • Unlocked by 1,173 tracked gamers (53% - TSA Ratio = 1.37) 2,213  
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