In Assassin's Creed Odyssey, Kephallonia is the starting home of Kassandra and Alexios.
The game opens on Kephallonia, where the player character lives as a mercenary before beginning a journey through the Greek world. The player chooses either Kassandra or Alexios as the protagonist, while the other becomes an important character in the family story.
Kephallonia is based on the real Ionian island of Kefalonia, though the game uses the spelling Kephallonia. Odyssey later expands across mainland Greece and many islands during the Peloponnesian War. The game was released in 2018 and is set in the fifth century BCE.