1. Black Mesa Achievements
  2. Gray Matter Propulsion achievement
Black Mesa

Black Mesa

1,077
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4.42
Game action
Black Mesa
samcday

samcday

432
25
01 Apr 17
11h 41m
50%
samcday

Gray Matter Propulsion achievement in Black Mesa

Gray Matter Propulsion

Headshot 20 enemies with the .357 magnum.

Gray Matter Propulsion0
06 April 2017
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