Alien Swarm achievements

Alien Swarm

3.4 from 67 votes

There are a maximum of 66 Alien Swarm achievements worth 1,883

2,288 tracked gamers have this game, 57 have completed it (2.49%)

Achievement Details

Outstanding Execution in Alien Swarm

Outstanding Execution46

Complete a campaign on Normal difficulty or harder without any marines dying.

  • Unlocked by 105 tracked gamers (5% - TSA Ratio = 4.64) 2,288  
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