Assassin’s Creed Syndicate is an action-adventure video game developed by Ubisoft Quebec and published by Ubisoft. It was released on October 23, 2015, for PlayStation 4 and Xbox One, and on November 19, 2015, for Microsoft Windows. It is the ninth major installment in the Assassin’s Creed series, and the successor to 2014’s Assassin’s Creed Unity.