Gearbox has just sent word that their loot-driven co-op FPS Borderlands 2 has now become available on Valve's SteamOS, putting the game's compatibility to four computer operating systems and two consoles since its launch.

It isn't just Borderlands 2 getting SteamOS support however, with Gearbox also noting that the upcoming Australian-made Borderlands: The Pre-Sequel will be heading to Valve's Linux variant. To help celebrate the announcement, Borderlands 2 is now 75% off so go grab it if you haven't already.

Borderlands: The Pre-Sequel will be launching on October 14th for Windows, Linux, Mac OS X, SteamOS, PlayStation 3 and Xbox 360. For a look at what the game has to offer, you can check out the latest series of new Borderlands: The Pre-Sequel gameplay videos here.