http://www.pcgamer.com/gabe-newell-valve-is-using-source-2-for-unannounced-products/
During his Reddit AMA today, Valve president Gabe Newell stated that Valve is—drum roll—developing new videogames. When it came to the inevitable question about Half-Life 3, Newell joked that “the number 3 must not be said,” but also…
Gabe Newell: Valve is working on singleplayer games, open to revisiting Half-Life universe