Baghdad is Basim Ibn Ishaq's main setting in Assassin's Creed Mirage.
Mirage is set in ninth-century Baghdad during the Islamic Golden Age. Basim begins as a street thief before joining the Hidden Ones and developing into a trained Assassin. The city provides the central environment for his investigation, contracts, and movement through historical districts.
The game emphasizes stealth, parkour, investigation, and targeted assassinations. Its structure and design deliberately echo elements of earlier Assassin's Creed titles, making the urban setting especially important to the experience.
Damascus is a major setting in the first Assassin's Creed, Alexandria is prominent in Origins, and Constantinople is central to Revelations. Those cities belong to other protagonists and periods, while Mirage focuses on Basim's Baghdad.