Which civilization provides the primary historical setting for Assassin's Creed Odyssey?

Ancient Greece provides the primary historical setting for Assassin's Creed Odyssey.

The game takes place during the Peloponnesian War in the fifth century BCE. Players explore a large version of the Aegean world, including Athens, Sparta, Macedonia, and numerous islands. The campaign combines fictional characters with historical figures and events from classical Greek history.

Assassin's Creed Odyssey was released in 2018. Players choose either Kassandra or Alexios as the main playable character, although the selected character is a descendant of Leonidas I of Sparta. The game emphasizes role-playing systems, dialogue choices, branching quests, and naval exploration.

Odyssey is sometimes confused with Origins because both feature ancient settings. Origins takes place in Ptolemaic Egypt, while Odyssey moves earlier in history to Greece during the conflict between Athens and Sparta. The game is also set before the formal Assassin Brotherhood exists.