Alien Swarm achievements
1,909
(660)

Alien Swarm

3.4 from 65 votes

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

2,213 tracked gamers have this game, 50 have completed it (2.26%)

Achievement Details

Zero Mortality in Alien Swarm

Zero Mortality14

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

  • Unlocked by 1,136 tracked gamers (51% - TSA Ratio = 1.39) 2,213  
Do you have a question about this achievement? Please post it in the Alien Swarm Forum