Which Assassin's Creed game is set mainly in 9th-century Baghdad?

Assassin's Creed Mirage is set mainly in 9th-century Baghdad.

The game depicts Baghdad during the Abbasid era, with the city serving as the central environment for Basim Ibn Ishaq's transformation from a thief into a Hidden One. Its historical setting is more concentrated than those of several recent entries, allowing the districts, markets, monuments, and institutions of Baghdad to shape the campaign directly.

Mirage was released in 2023 and was designed as a smaller, more stealth-focused experience inspired by the structure of earlier Assassin's Creed games. Its story takes place before the events involving Basim in Assassin's Creed Valhalla, making it a character-focused prequel.

Other entries use similarly distinctive historical settings but belong to different centuries and regions. Origins is set in Ptolemaic Egypt, Unity in Revolutionary France, and Revelations mainly in Constantinople during the early 16th century. Baghdad in the Abbasid period therefore identifies Mirage.