Run. Think. Shoot. Live. Source. Black Mesa is the Half-Life 2 total conversion of the original Half-Life game. Utilizing the Source engine and its endless array of possibilities and powers, Black Mesa will throw you into the world that started the Half-Life continuum and introduced Gordon Freeman to the world as a gun-toting, bullet-dodging Ph.D. in Theoretical Physics.
I downloaded this mod just because I wished to re-play Half-Life with the Source engine. The game is basically the same, without too many modifications of the original gamplay and enviroments. Then I realized the development team went beyond rebooting... They took the Source engine where even Half-Life 2 could not do, with a majestic use of light effects and dark areas. Even if I know this game so well, I was amazed and thrilled playing this mod, even more than Half-Life 2 itself.