The wildest game rumor in history might actually be turning into a game. Let’s cut the chase: for decades, Half-Life 3  has been the ultimate gaming unicorn, talked about on forums, whispered in basements, and turned into jokes about Valve not knowing how to count to three. GameStop even made a promo out of it. Yeah. It’s been that long. Tom's Hardware But guess what? The rumor mill is firing up again , and this time it’s louder than a headcrab screaming at a barnacle. Buckle