Alien Swarm achievements
1,776
(660)

Alien Swarm

3.3 from 86 votes

There are a maximum of 66 Alien Swarm achievements worth 1,776

3,067 tracked gamers have this game, 92 have completed it (3.00%)

Achievement Details

Zero Mortality in Alien Swarm

Zero Mortality13

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

  • Unlocked by 1,691 tracked gamers (55% - TSA Ratio = 1.34) 3,080  
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