Valve quietly releases Source 2 engine, Source 2 version of Dota 2, and new Hammer map editor In true Valve fashion, Gaben & Co. have just launched the long-awaited Source 2 engine... as part of the ...

GameSpot may get a commission from retail offers. Via NeoGAF. Valve completely redesigned its map editor. Posts on NeoGAF and Reddit have compiled the evidence found in the game's files, and general ...