Assassin's Creed Origins is a 2017 action-role-playing video game developed by Ubisoft Montreal and published by Ubisoft. It is the tenth major installment in the Assassin's Creed series. The player takes on the role of a Medjay named Bayek of Siwa and his wife Aya, as they work to protect the people of Ptolemaic Egypt during a time of widespread upheaval. The Pharaoh, Ptolemy XIII, struggles to maintain his rule while harboring ambitions of expanding his kingdom. His sister, the recently deposed Cleopatra, begins marshaling loyalist forces to launch a counter-coup against Ptolemy. Additionally, incursions into the Kingdom by the Roman Republic under the command of Julius Caesar lead to fears of an imminent invasion. Bayek's role as a Medjay brings him and Aya into contact with the secretive forces manipulating these events and into forming the Hidden Ones, the precursor organization to the Assassin Brotherhood.