Alien Swarm achievements
1,942
(660)

Alien Swarm

3.4 from 62 votes

There are a maximum of 66 Alien Swarm achievements worth 1,942

2,112 tracked gamers have this game, 47 have completed it (2.23%)

Achievement Details

Clear Firing in Alien Swarm

Clear Firing15

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

  • Unlocked by 958 tracked gamers (45% - TSA Ratio = 1.48) 2,112  
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