What is the title of the 2007 video game that began the Assassin’s Creed series?

The 2007 video game that began the Assassin’s Creed series is Assassin’s Creed.

Ubisoft released the game in November 2007 for PlayStation 3 and Xbox 360, with a Windows version following in 2008. It introduced the series’ central conflict between the Assassins and the Templars, presented through a science-fiction framing device involving genetic memories.

The game’s primary historical protagonist is Altaïr Ibn-La’Ahad, an Assassin operating in the Holy Land during the Third Crusade. Players visit cities including Masyaf, Jerusalem, Acre, and Damascus. A modern character, Desmond Miles, experiences Altaïr’s memories through the Animus.

The title is sometimes confused with Assassin’s Creed II, which is a sequel rather than the series debut. Later games expanded the formula with larger open worlds, naval travel, role-playing systems, and different historical periods.