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.
The design of the the game is great, in exception to the crouch jumping but other than that, FLAWLESS! I had CHILLS when playing through the intense and epic battles with tanks and manta ray ships, its a high dose of awesomeness that is of much delight. This is a new reinvention of the classic game perfects the elements that were not achieved by the original due to technological and design limitations. If it were complete, I think that it would make a wonderful replacement or be interchangeable game for the original Half-Life to make a seamless experience for the Half-Life series.