2K Games has announced that Borderlands, the world’s first official role-playing shooter (RPS), will arrive in retail stores on October 20, 2009. Coming to the PS3, Xbox 360 and PC, the game will blend first-person shooter combat with co-operative gameplay and character progression to deliver a unique player experience. Players will be able to freely join or leave each other’s games at any time for collaborative mayhem and have the freedom to choose to play in full single player mode to experience the world on their own. This title is not yet rated by the ESRB, but given the age gate on their site, I’m thinking “M”.