Alien Swarm achievements
1,861
(660)

Alien Swarm

3.4 from 70 votes

There are a maximum of 66 Alien Swarm achievements worth 1,861

2,348 tracked gamers have this game, 64 have completed it (2.73%)

Achievement Details

Seal of Quality in Alien Swarm

Seal of Quality14

Seal a door with the welder.

  • Unlocked by 1,265 tracked gamers (54% - TSA Ratio = 1.36) 2,348  
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