Alien Swarm achievements

Alien Swarm

3.4 from 66 votes

There are a maximum of 66 Alien Swarm achievements worth 1,909

2,218 tracked gamers have this game, 51 have completed it (2.30%)

Achievement Details

Outstanding Execution in Alien Swarm

Outstanding Execution47

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

  • Unlocked by 101 tracked gamers (5% - TSA Ratio = 4.69) 2,218  
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