Which Assassin’s Creed game introduced the Spartan mercenary Kassandra?

Assassin’s Creed Odyssey introduced the Spartan mercenary Kassandra.

Released in 2018, Odyssey is set in ancient Greece during the Peloponnesian War. Players choose between Kassandra and Alexios as the playable character, but Ubisoft’s later canonical material identifies Kassandra as the protagonist of the game’s official continuity.

Kassandra is presented as a descendant of Leonidas I and a mercenary who becomes entangled in conflicts involving Athens, Sparta, the Cult of Kosmos, and the First Civilization. The game emphasizes dialogue choices, branching quests, naval travel, and role-playing systems.

Odyssey follows Assassin’s Creed Origins chronologically in the broader ancient-world storyline, although Origins focuses on Bayek of Siwa and the formation of the Hidden Ones. Valhalla instead moves forward to ninth-century England and features Eivor.