Alien Swarm achievements
1,778
(660)

Alien Swarm

3.4 from 81 votes

There are a maximum of 66 Alien Swarm achievements worth 1,778

2,799 tracked gamers have this game, 88 have completed it (3.14%)

Achievement Details

Zero Mortality in Alien Swarm

Zero Mortality14

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

  • Unlocked by 1,495 tracked gamers (53% - TSA Ratio = 1.36) 2,807  
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