Alien Swarm achievements
1,767
(660)

Alien Swarm

3.4 from 82 votes

There are a maximum of 66 Alien Swarm achievements worth 1,767

2,854 tracked gamers have this game, 92 have completed it (3.22%)

Achievement Details

Rydberg Reactor Speed Run in Alien Swarm

Rydberg Reactor Speed Run40

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

  • Unlocked by 189 tracked gamers (6% - TSA Ratio = 3.95) 2,944  
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