wikipedia - a third-party total remake of Half-Life, Valve Corporation's critically acclaimed debut title, on Valve's Source engine. The 40-person volunteer development team says they hope to create a more engrossing in-game world with more varied, complex environments; and more challenging, realistic gameplay.[

IGN - a Half-Life 2 total conversion remaking VALVe Software's award-winning PC game, Half-Life. Utilizing the Source engine, Black Mesa will reintroduce the player as Doctor Gordon Freeman, along with the original cast of memorable characters and environments seen in Half-Life. Black Mesa was founded to fully reconstruct the Half-Life universe utilizing Source to its fullest potential in terms of art detail, level sizes and code features. This total conversion will not require Half-Life: Source to play - only legitimate copies of Half-Life 2 and Counter-Strike: Source on Steam.

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