Bayek of Siwa is the playable Medjay protagonist of Assassin’s Creed Origins.
Bayek is a Medjay from the Siwa Oasis in Ptolemaic Egypt. Medjay were historically associated with Nubian and Egyptian desert communities, but Origins uses the title for a protector serving local people. The game follows Bayek and his wife Aya as they investigate the forces responsible for a personal tragedy and become involved in the beginnings of the Hidden Ones.
Origins is set in the first century BCE, during the reign of Ptolemy XIII. Its story depicts political tension involving the Ptolemaic kingdom, Cleopatra, and Julius Caesar. The game presents the Hidden Ones as the organization that later develops into the Assassin Brotherhood, making it a foundational story within the series’ fictional history.
Aya is an important playable character in selected sequences, but Bayek is the principal protagonist. Senu, Bayek’s eagle, is an animal companion used for reconnaissance rather than the human hero. The title Origins refers to the creation of the Hidden Ones and the roots of the later Assassin tradition.