Black Mesa (previously known as Black Mesa: Source) is a planned third-party total conversion modification for Valve Corporation's Source Engine. The stated goal of the project is to recreate Valve's critically acclaimed 1998 video game Half-Life using the more advanced capabilities of the 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.
Black Mesa requires at least a Radeon X1600 or GeForce 7600 GS to meet recommended requirements running on high graphics setting, with 1080p resolution. This hardware should achieve 60FPS. The RAM requirements are at least a 1 GB memory. Your GPU is expected to be able to deliver DirectX 9. Finally, Black Mesa will need hardware that is a 13 year old PC or younger to run recommended.