Alien Swarm achievements
1,833
(660)

Alien Swarm

3.4 from 75 votes

There are a maximum of 66 Alien Swarm achievements worth 1,833

2,539 tracked gamers have this game, 64 have completed it (2.52%)

Achievement Details

Zero Mortality in Alien Swarm

Zero Mortality13

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

  • Unlocked by 1,395 tracked gamers (55% - TSA Ratio = 1.34) 2,539  
Do you have a question about this achievement? Please post it in the Alien Swarm Forum