After a week of exciting announcements from Valve revealing SteamOS, Steam Machines and the Steam Controller, gamers couldn’t help but be a little disappointed that the next iteration of the Half-Life franchise was once again missing in action. As it turns out, Valve quietly filed a trademark on Sunday for Half-Life 3 with the Office for Harmonization in the Internal Market, the trademarks registry in the European Union. Thanks to the sleuths at NeoGAF, we now have undeniable proof that the long-delayed Half-Life 3 is a real product that does or will exist. Of course, Valve has yet to respond to the discovery, and there’s no evidence that the game is in an even remotely playable state, but this is the first significant sign in months that the franchise is still alive.