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 set on the planet of Pandora. Lured by its apparent vast deposits of minerals, several colonization ships sponsored by the Dahl Corporation (one of several diversified mega-corporations that appear to control and govern entire planets) journey to the planet and build settlements there. The mining operations are cost-effectively manned by large amounts of convict labor brought to the planet by Dahl.
A sequel, Borderlands 2, was announced on August 2, 2011 for the PlayStation 3, Xbox 360, and Microsoft Windows platforms. The game is developed by Gearbox Software and distributed by Take-Two Interactive, and was released on September 18, 2012. The game features many technical improvements and follows four new characters on Pandora as they battle Handsome Jack and the Hyperion Corporation.
Source: Wikipedia, "Borderlands (video game)", available under the CC-BY-SA License.