SteamOS

Sony is eying SteamOS too.

Microsoft is keeping a very close eye on this possible Windows 8 / Xbox One competitor.

Here's the final piece to the Steam (Box) Machines puzzle.

Nvidia helped Valve Software port its library of games over to SteamOS, reduce controller latency and more.

A supposed Valve employee spills the beans on what to expect this week, and it sounds legit.

Valve Software has developed its own operating system.