Valve is done teasing. Today, Valve has revealed SteamOS, its own operating system based on Linux, designed for living room gaming PCs. It's the first step towards Valve's Steam Box, its vision for an open video game console. It combines Steam's preeminent video game digital distribution platform with a user interface designed for TVs, all on top of the Linux platform. It will also be free.

"It will be available soon as a free stand-alone operating system for living room machines," according to the company.

Incredibly, Valve says that major game devleopers are already on board with Linux, and will be building triple-A game titles that will run natively on SteamOS in 2014. However, SteamOS boxes will also have a workaround for the huge existing library of Windows games: in-home streaming. Not unlike the Nvidia Shield, it will include a method for wirelessly streaming games from your existing gaming computer to your TV, which Valve says will also come to the regular Steam client at some point in the future.

Also coming to both Steam and SteamOS: streaming video and music services. "We're working with many of the media services you know and love," Valve writes.