Ranked Heinz and the rest of the development team built the entire game in the Portal 2 Community Edition engine, an officially released off-shoot of Valve's Source engine, which the developer ...

The classic CSGO map Train is finally here for Counter-Strike 2, and it seems Valve has smuggled a reference to classic FPS ...

a huge fan project just got released which connects Portal and Portal 2, originally developed by Valve. In 5 to 7 hours of playtime, Portal: Revolution once again asks you to demonstrate your ...