What is the title of the 2017 Assassin's Creed game starring the Medjay Bayek of Siwa?

The 2017 Assassin's Creed game starring the Medjay Bayek of Siwa is Assassin's Creed Origins.

Bayek is a Medjay, a traditional protector and lawkeeper, living in Ptolemaic Egypt. After a personal tragedy, he and his wife Aya investigate a hidden organization that threatens Egypt's political order. Their actions help establish the historical roots of the Assassin Brotherhood.

Origins is set primarily during the first century BCE, when Egypt is ruled by the Ptolemaic dynasty. The game includes Alexandria, Memphis, Cyrene, and the Great Pyramids, and its story intersects with Cleopatra, Julius Caesar, and Ptolemy XIII. It presents a fictionalized version of the period rather than a documentary reconstruction.

The title marks the series' move toward a larger role-playing structure, including experience levels, equipment rarity, and a broad open world. It is distinct from Odyssey, which is set earlier in ancient Greece, and Valhalla, which focuses on Viking-era England.