Assassin's Creed IV: Black Flag is an upcoming historical action-adventure open world video game being developed by Ubisoft Montreal and published by Ubisoft. It is the sixth major installment in the Assassin's Creed series, a sequel to 2012's Assassin's Creed III modern story and a prequel to its ancestral storyline.
It is scheduled for an October 29, 2013 release in North America, an October 31, 2013 release for Australia, a European release on November 1, 2013 and a Japanese release on November 28, 2013. It will be available for PlayStation 3, Wii U, and the Xbox 360. PlayStation 4 and Xbox One versions are also in development, and the game has been announced as a launch title for both consoles. A Microsoft Windows version was announced for release on October 29, 2013 but has since been delayed "a few weeks".