Assassin's Creed IV: Black Flag is a 2013 historical action-adventure open world video game developed by Ubisoft Montreal and published by Ubisoft. It was released worldwide for the PlayStation 3 and Xbox 360 on October 29, 2013; for the Wii U on October 29, 2013 in North America, on November 21, 2013 in Australia, on November 22, 2013 in Europe, and on November 28, 2013 in Japan; for the PlayStation 4 on November 15, 2013 in North America, on November 22, 2013 in Europe, and on November 29, 2013 in Australia; for Microsoft Windows on November 19, 2013 in North America, on November 21, 2013 in Australia, and on November 22, 2013 in Europe; and for the Xbox One on November 22, 2013.
