Borderlands 2 is a 2012 action role-playing first-person shooter video game developed by Gearbox Software and published by 2K. Taking place five years following the events of Borderlands (2009), the game is again set on the planet of Pandora. The story follows a new group of Vault Hunters who must ally with the Crimson Raiders, a resistance group made up of civilian survivors and guerrilla fighters, to defeat the tyrannical Handsome Jack before he can unlock the power of a new Vault. The game features the ability to explore the in-game world and complete main missions and optional side quests, either in offline splitscreen, single-player or online cooperative gameplay. Like its predecessor, the game features a procedurally generated loot system which is capable of generating numerous combinations of weapons and other gear.

Gearbox Software is an American video game development company based in Frisco, Texas. It was established as a limited liability company in February 1999 by five developers formerly of Rebel Boat Rocker. Randy Pitchford, one of the founders, serves as president and chief executive officer. Gearbox initially created expansions for the Valve game Half-Life, then ported that game and others to console platforms. In 2005, Gearbox launched its first independent set of games, Brothers in Arms, on console and mobile devices. It became their flagship franchise and spun off a comic book series, television documentary, books, and action figures. Their second original game series, Borderlands, commenced in 2009, and by 2015 had sold over 26 million copies. The company also owns the intellectual property of Duke Nukem and Homeworld.