Which Assassin's Creed game features Kassandra as a playable protagonist in ancient Greece?

Assassin's Creed Odyssey features Kassandra as a playable protagonist in ancient Greece.

Odyssey is set during the fifth century BCE, amid the Peloponnesian War between Athens and Sparta. At the beginning of the game, players choose Kassandra or Alexios as the playable character, but the game's canon novel identifies Kassandra as the canonical protagonist. Both characters are descendants of Leonidas I of Sparta within the story.

Kassandra's journey takes her across the Aegean world, including mainland Greece and numerous islands. The game includes historical figures such as Socrates, Pericles, and Alcibiades, while its main family story and mythological encounters are fictionalized.

Origins takes place much later in ancient Egypt, and Valhalla is set in the Viking Age. Syndicate is set in Victorian London, making those games distinct in both time period and geography.