Alien Swarm achievements
1,853
(660)

Alien Swarm

3.4 from 70 votes

There are a maximum of 66 Alien Swarm achievements worth 1,853

2,350 tracked gamers have this game, 61 have completed it (2.60%)

Achievement Details

Rydberg Reactor Speed Run in Alien Swarm

Rydberg Reactor Speed Run43

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

  • Unlocked by 130 tracked gamers (6% - TSA Ratio = 4.26) 2,350  
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