2K Games and Gearbox Software announced today that Borderlands 2, the sequel to the multi-million unit selling breakout hit, Borderlands, will be available on the Xbox 360, PlayStation 3  and Windows-based PC in North America on September 18, 2012 and internationally on September 21, 2012. Currently in development by Gearbox Software, Borderlands 2 is the sequel to the critically acclaimed ... more.