It's here, it's finally here! After years and years of being stuck in development hell, Black Mesa Source is available for download. Black Mesa Source is really just Half-Life, redone on the Source engine with some incredibly upgraded graphics.
Black Mesa Source features all-new music, voice acting, choreography, and added dialogue, making the game much more immersive. Best of all, Black Mesa Source is completely free! Yes, FREE!
There are plenty of download mirrors to choose from, and you can read more about it, as well as download Black Mesa Source, right here.