The original Assassin's Creed was released in 2007.
Developed by Ubisoft Montreal and published by Ubisoft, the game introduced players to Altaïr Ibn-La'Ahad, an Assassin operating during the Third Crusade. Its historical settings include cities such as Jerusalem, Acre, and Damascus, connected by the fictional region of the Kingdom.
The title began as a planned Prince of Persia spin-off before becoming a new intellectual property. Its central gameplay combined free-running, stealth, investigation, and targeted assassinations in large historical environments.
The first release arrived for PlayStation 3 and Xbox 360 in November 2007, followed by a Windows version in 2008. Later entries expanded the series with different protagonists and periods, but the 2007 game established its recurring conflict between Assassins and Templars.