Top Definition
1. An awesome remake of the original Half-Life 1.
2. The facility in which Half-Life 1 takes place in.
1. Dude, you should play Black Mesa, it's new and improved from Half-Life 1!
2. Gordon Freeman works at Black Mesa.
#half-life #bms #facility #gordon #freeman
by Osd1000 October 03, 2013
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