Which Assassin's Creed game is set mainly in ancient Egypt during the Ptolemaic period?

Assassin's Creed Origins is the Assassin's Creed game set mainly in ancient Egypt during the Ptolemaic period.

The game takes place primarily in the first century BC, when Egypt is ruled by the Ptolemaic dynasty and political tensions are intensified by Roman involvement. Its open world includes locations such as Alexandria, Memphis, Cyrene and the Giza plateau. These settings let the story connect real historical figures and events with the series' fictional conflict.

Origins is also significant because it serves as an origin story for the Hidden Ones. Bayek and Aya establish the organization after confronting a secretive group known as the Order of the Ancients. The title can be confused with Assassin's Creed Odyssey, which is set earlier in ancient Greece, but Origins is the entry specifically associated with Ptolemaic Egypt.