Which Assassin's Creed game was the first to feature a fully navigable version of ancient Egypt?

Assassin's Creed Origins was the first Assassin's Creed game to feature a fully navigable version of ancient Egypt.

Released in 2017, Origins places Bayek of Siwa across a large open world containing deserts, oases, villages, cities, temples, tombs, and the Nile region. Players can travel through locations including Siwa, Alexandria, Memphis, and Cyrene. The setting supports the game's shift toward role-playing systems, exploration, equipment levels, and character progression.

The story takes place during the first century BCE, when Cleopatra VII contests control of Egypt and Roman power expands under Julius Caesar. Bayek's investigation introduces the Hidden Ones, the organization portrayed as the predecessor of the later Assassin Brotherhood.

Odyssey followed in 2018 and explored the Greek world, while Valhalla followed in 2020 with ninth-century England and Norway. Those games also offer large historical worlds, but Origins is the title that introduced the series' fully explorable ancient Egyptian setting.