The playability of Black Mesa (and in Half-Life, the original) is truly amazing. Gordon Freeman won't have any choice but to fight against every obstacle that gets in his way to stay alive in one of the most exciting adventures in the history of videogames. Things really go awry when added to the alien problem is that of the government, who, once they find out what is going on, sends special forces troops to silence everything that could be going on-aliens and scientists included. What happens is during a failed experiment, a portal to another dimension opens in the laboratory, allowing a race of aliens with very evil intentions to enter. In Black Mesa you will once again play as Gordon Freeman, the distinguished theoretical physicist in the underground Research Laboratory of Black Mesa, who becomes a hero thanks to a stroke of bad luck.

Black Mesa is a modification of Half-Life, the game that made Valve famous and got it to be the giant that it currently is, and basically recreates the original game with modern graphics.

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