Kephallonia is the Greek island that serves as the protagonist's childhood home in Assassin's Creed Odyssey.
The game begins on Kephallonia, where the player character lives as a mercenary before the main journey expands across the Aegean world. The island provides the opening region, introductory quests, and early context for the protagonist's family history. Its landscapes include coastal settlements, mountainous terrain, and the village of Kausos.
Odyssey is set in 431 BCE, during the Peloponnesian War. Players can choose to control Kassandra or Alexios, so the protagonist's name is not a single fixed answer across every playthrough. The island, however, remains the starting home associated with both choices. Kephallonia should not be confused with Crete or Rhodes, which are separate Greek locations represented elsewhere in the game's large map. The historical setting combines real places with mythological and fictional story elements.