Borderlands is an action role-playing first-person shooter video game that was developed by Gearbox Software for PlayStation 3, Xbox 360, Microsoft Windows and Mac OS X. It is the first game in the Borderlands series. The console versions of the game were released in North America on October 20, 2009, in PAL countries on October 23 and in Japanese on February 25, 2010. The Windows version was released on October 26 for North America and then on October 29 internationally. The Mac OS X version of the game was released on December 3, 2010 by Feral Interactive.
A sequel, Borderlands 2, was released worldwide in September 2012.