Assassin's Creed Odyssey
Is an action role-playing video game developed by Ubisoft Quebec and published by Ubisoft. It is the eleventh major installment in the Assassin's Creed series and the successor to 2017's Assassin's Creed Origins. It was released worldwide for Microsoft Windows, PlayStation 4, Xbox One, and Nintendo Switch on October 5, 2018, with a Stadia version launching alongside the service in 2019. Like its predecessor, the game features a large open world, and adopts elements from the role-playing genre, putting more emphasis on combat and exploration than stealth.

The plot is set in a fictional history of real-world events, but unlike other games in the series, it doesn't focus on the conflict between the Assassin Brotherhood and the Templar Order.[c] The main narrative is set in the years 431–422 BC and tells a mythological history of the Peloponnesian War between Athens and Sparta. Players control a male or female mercenary (Ancient Greek: μίσθιος misthios) who fights on both sides of the conflict as they attempt to find their family. The modern-day portion of the story is set in the 21st century and continues from the events of Origins, as Layla Hassan, now an Assassin agent, searches for Atlantis and a powerful artifact it houses.

The game received generally positive reviews from critics, with praise for its gameplay, graphics, story, characters, and world design, while being criticised for feeling too ambitious. It was also a favorable commercial success, selling over 10 million copies worldwide by March 2020. It was followed in November 2020 by Assassin's Creed Valhalla, which takes place in medieval England and Norway during the Viking expansion across Europe