sfcrazy writes: Valve Software, the makers of Halflife and Left4Dead, have announced that Steam OS will be available for public download on December 13. That’s the day when the company will start shipping the Steam Machines and Steam Controllers to the 300 selected beta participants. The company said, "SteamOS will be made available when the prototype hardware ships. It will be downloadable by individual users and commercial OEMs. (But unless you’re an intrepid Linux hacker already, we’re going to recommend that you wait until later in 2014 to try it out.) We’ll post info soon about that. Oh, and stay tuned for the in-home streaming beta to begin soon, too!"