Which Assassin's Creed game stars Bayek as its main protagonist?

Assassin's Creed Origins stars Bayek as its main protagonist.

Bayek of Siwa is a Medjay, a protector and law enforcer in ancient Egypt. After a personal tragedy, he investigates a conspiracy that eventually leads to the formation of the Hidden Ones, the organization that becomes the Assassin Brotherhood. Aya, Bayek's wife, is also a major character and political actor in the story.

Released in 2017, Origins moved the series toward role-playing-game systems, including experience levels, loot, ability trees, and dialogue choices. Its world spans Egypt under Ptolemy XIII, with Alexandria, Memphis, Giza, and the Nile Valley among its major areas. Bayek is not the protagonist of Odyssey or Valhalla: those games follow Kassandra or Alexios, and Eivor, respectively.