Black Masa Source (Early Access):
Download:
http://www.uloz.to/xfBKsfiW/black-mesa-early-access-v0-1-0-7z-001
http://www.uloz.to/xcrYyXxY/black-mesa-early-access-v0-1-0-7z-002
http://www.uloz.to/xNAyGcbD/black-mesa-early-access-v0-1-0-7z-003
http://www.uloz.to/xpJNzfiW/black-mesa-early-access-v0-1-0-7z-004
http://www.uloz.to/xjeqdXxY/black-mesa-early-access-v0-1-0-7z-005
http://www.uloz.to/xLhnJcbD/black-mesa-early-access-v0-1-0-7z-006
http://www.uloz.to/xg79XDfV/black-mesa-early-access-v0-1-0-7z-007
Update:
http://www.uloz.to/xEnSu9Ms/bm-upd4-0-1-1-rar

Installation:
1. Use HLSPLIT to join the files with extension .001 to .007
You can download the app from here: http://www.hjsplit.org/windows/
2. Extract Black Mesa (Early Access v0.1.0).7z
3. (optional) Extract BM Upd4 (0.1.1).rar to game's installation folder
4. Start the game from SmartSteamLoader.exe