Alien Swarm achievements

Alien Swarm

3.3 from 76 votes

There are a maximum of 66 Alien Swarm achievements worth 1,822

2,598 tracked gamers have this game, 68 have completed it (2.62%)

Achievement Details

Clear Firing in Alien Swarm

Clear Firing14

Kill 25 drones without friendly fire. Four marines must be present in the mission.

  • Unlocked by 1,285 tracked gamers (49% - TSA Ratio = 1.42) 2,598  
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