Valve lets out info about Half-Life 3

VR, yes, but they may very well wait for a new engine. It doesn’t make much sense to work on a game for your old engine when you’re also working on a new one.

Founded in 2004, Leakfree.org became one of the first online communities dedicated to Valve’s Source engine development. It is more famously known for the formation of Black Mesa: Source under the 'Leakfree Modification Team' handle in September 2004.