And while they've twiddled their thumbs, running in circles of perfectionism, video games have become the most profitable form of media. Yeah they're making a killing on Steam, but they could make a second killing on a new real game. GTA V has made $billions.

The one rational explanation I can come up with is that they're afraid of releasing a buggy stinker of a game as "Half-Life 3" and then the negative reputation of that game might make a dent in the market dominance of the Steam platform. To that I'd say: just playtest the thing. I really think it's perfectionism. They wanted Episode 3 to be a big bang and it never came out. There is something pathological going on in the leadership of Valve's game division. Or maybe Gabe ate them all.