From Press Release:
Get ready to explore Ancient Egypt and the beginning of the Assassin Brotherhood. Assassin’s Creed Origins launches October 27th.
Assassin’s Creed Origins will be available on October 27, 2017 for the Xbox One video game and entertainment system from Microsoft, PlayStation®4 Pro computer entertainment system, PlayStation®4 computer entertainment system and Windows PC. It will be available for Xbox One X on November 7, 2017.