Alien Swarm achievements
1,773
(660)

Alien Swarm

3.3 from 87 votes

There are a maximum of 66 Alien Swarm achievements worth 1,773

3,085 tracked gamers have this game, 94 have completed it (3.05%)

Achievement Details

Rydberg Reactor Speed Run in Alien Swarm

Rydberg Reactor Speed Run41

Complete Rydberg Reactor within 3:10 on Normal difficulty or harder without any marines dying.

  • Unlocked by 188 tracked gamers (6% - TSA Ratio = 4.05) 3,087  
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