Late on Friday, December 13, Valve released the first public version of SteamOS. As you would expect, SteamOS is currently very rough around the edges -- it is essentially just a version of Debian 7.1 (Wheezy) that has Steam pre-installed. If you're interested in Valve's latest machination, though, and toying with what might be the future of gaming, it's well worth installing SteamOS in VirtualBox. Here's guide on how to do just that.