Yes, that Black Mesa. If you dont know what it is, it's basically a remake of HL1 for the Source engine, that was supposed to be a better remake than Valve's own HL:Source, that had almost zero graphical improvement that it could have had with the Source engine. It went through ridiculous delays, and eventually becoming kinda like vaporware Г  la Duke Nukem Forever.

They say they are going to release it (for free, you only need Source SDK Base 2007) on September 14. Hopefully this date is permanent, and Black Mesa will be released for real.

If you want to help the mod to gain some Steam on Steam Greenlight, go to http://bit.ly/SiEHZo, or just search "Black Mesa" on Greenlight, and give a Yes for it.

OMG i waited for this!