Which Assassin's Creed game features Kassandra as the canon protagonist?

Assassin's Creed Odyssey features Kassandra as the canon protagonist.

Odyssey, released in 2018, lets players choose between Kassandra and her brother Alexios as the playable character. Ubisoft later identified Kassandra as the canonical protagonist for the game's story, although the player can still experience the campaign as Alexios.

The game is set in ancient Greece during the Peloponnesian War, beginning in 431 BCE. Kassandra is a mercenary who becomes involved in family conflicts, political struggles, and the activities of the Cult of Kosmos. Her journey spans mainland Greece and numerous Aegean islands.

Kassandra is not an Assassin in the traditional Brotherhood sense, and Odyssey takes place centuries before the Hidden Ones of Origins. That timeline often causes confusion. The game instead connects to the wider series through the Isu, ancient artifacts, and the modern-day character Layla Hassan.