Alien Swarm achievements

Alien Swarm

3.3 from 83 votes

There are a maximum of 66 Alien Swarm achievements worth 1,797

3,011 tracked gamers have this game, 92 have completed it (3.06%)

Achievement Details

Outstanding Execution in Alien Swarm

Outstanding Execution45

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

  • Unlocked by 153 tracked gamers (5% - TSA Ratio = 4.46) 3,053  
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