Black Mesa

Black Mesa (formerly known as Black Mesa: Source) — a remake of the 1998 cult computer game Half-Life on the Source engine. It is a modification for the Half-Life 2 game. The developers intend to recreate the original Half-Life universe using the advanced features of the Source engine, rework all the textures, models and levels, and create a realistic gameplay. There will be no new weapons in the game, however, they decided to add a "sprint" function to the H.E.V hazmat suit. Also, the creators of the modification said that they were going to make a fully synchronous storyline, only changing it a little, without disturbing the balance. Achievements are also planned to be introduced into the game.

Game features:

Modification is absolutely free
Ten hours of single player play, up to the Lambda Core Chapter and Gordon jumping into the portal (to be continued as an expansion pack)
Admire over 2,000 custom models and approximately 5,000 custom textures
Immerse yourself in an all-new soundtrack and over 2,000 animated scenes and over 6,000 lines of dialogue
Over 2300 custom sound effects
Brand new soundtrack
And much more