Assassin's Creed Odyssey is an action role-playing video game played from a third-person perspective. At the beginning of the game, the player can select to play as either Alexios or Kassandra,[1] Greek mercenaries and descendants of the Spartan king Leonidas I. In addition to completing the story campaign, players can freely explore a large open world set in Greece on foot or on horseback.[2] As the player explores the world, they will encounter various non-playable characters (NPCs) who give players side missions to complete.[3] They also discover locations of interests, clear out fortresses and camps, explore tombs and shipwrecks, and collect hidden treasures.[4][5] Synchronization points in various landmarks in Greece, which serve as fast travel points, can also be unlocked.[6] Players can also collect special collectibles and various crafting resources, such as iron ore, wood, leather, metal, and precious gems, through exploration and hunting wildlife.[7] Other side activities players can undertake include competing in a gladiatorial arena and completing time-limited bounties and contracts.[8][9] Unlike the previous games in the series, Odyssey offers two modes of gameplay: Guided mode shows the player the locations of their objects immediately using waypoints, while Exploration mode tasks players to find out the locations themselves after being given brief clues from other NPCs.[10][11]