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

Black Mesa

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Black Mesa
Coldvira

Coldvira

181
12
07 Apr 17
60h 52m
24%
Coldvira

Gray Matter Propulsion achievement in Black Mesa

Gray Matter Propulsion

Headshot 20 enemies with the .357 magnum.

Gray Matter Propulsion0
08 April 2017
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