Alien Swarm achievements
1,810
(660)

Alien Swarm

3.3 from 78 votes

There are a maximum of 66 Alien Swarm achievements worth 1,810

2,679 tracked gamers have this game, 75 have completed it (2.80%)

Achievement Details

Seal of Quality in Alien Swarm

Seal of Quality13

Seal a door with the welder.

  • Unlocked by 1,546 tracked gamers (58% - TSA Ratio = 1.31) 2,679  
Do you have a question about this achievement? Please post it in the Alien Swarm Forum