Assassin's Creed Mirage is a 2023 action-adventure game developed by Ubisoft Bordeaux and published by Ubisoft. The game is the thirteenth major installment in the Assassin's Creed series and the successor to 2020's Assassin's Creed Valhalla. While its historical timeframe precedes that of Valhalla, its modern-day framing story succeeds Valhalla's own. Set in 9th-century Baghdad during the Islamic Golden Age—in particular during the Anarchy at Samarra—the story follows Basim Ibn Ishaq (a character first introduced in Valhalla), a street thief who joins the Hidden Ones to fight for peace and liberty, against the Order of the Ancients,[b] who desire peace through control. The main narrative focuses on Basim's internal struggle between his duties as a Hidden One and his desire to uncover his mysterious past. Originally envisioned as an expansion for Valhalla, the game was reworked into a standalone title to expand its scope. The design philosophy behind Mirage—the first game to be developed primarily by Ubisoft Bordeaux, previously just a support studio—was to return to the series' roots by focusing on stealth, parkour, and assassinations over the role-playing elements featured heavily in recent installments. As a result, the game is much smaller in scale than its predecessors and combines elements introduced in them with those found in earlier installments of the franchise. Mirage was released for PlayStation 4, PlayStation 5, Windows, Xbox One, and Xbox Series X/S on October 5, 2023. A mobile version is also scheduled to release for iOS on iPhone 15 Pro models in early 2024. Upon release, the game received generally positive reviews from critics, who praised its world design, focus on stealth and return to form of the franchise, though some criticized the characters and the story's reliance on previous installments in the series.