Assassin's Creed Odyssey is a 2018 open-world action RPG set in ancient Greece during the Peloponnesian War, allowing players to choose between male (Alexios) or female (Kassandra) protagonists. It features a massive, explorable map, RPG elements like skill trees and branching dialogue, and a focus on naval combat and mythology, making it a significant departure from earlier Assassin's Creed games, with some fans loving its scale and others finding it too vast and repetitive.