The game features the ability to explore the in-game world, and complete both main missions and optional side quests, either in single-player or online cooperative gameplay, with the latter providing additional options for duels and competitive PVP matches in designated areas. The game's story focuses on a group of four 'Vault Hunters', who travel to the distant planet Pandora to hunt down an alien vault, rumored to contain advanced alien technology, finding themselves battling the local wildlife and bandit population, but ultimately attempting to stop the head of a private corporation army from reaching the vault first.
The game was released worldwide in October 2009, with the Mac OS X version being released on Decemby Feral Interactive. It is the first game in the Borderlands series, developed by Gearbox Software, and published by 2K Games for PlayStation 3, Xbox 360, Microsoft Windows, Mac OS X and Shield Android TV. Borderlands is a 2009 open world action role-playing first-person shooter video game.