"Assassin's Creed Odyssey" is an action-adventure game developed by Ubisoft Quebec and published by Ubisoft. It is the twentieth work of the Assassin's Creed series and the eleventh main series of works. The 2017 "Assassin's Creed: Origins" Successor works. The game was launched on October 5, 2018, and will be sold globally on Microsoft Windows, PlayStation 4, Xbox One and Nintendo Switch platforms. The Nintendo Switch version will be played in cloud computing. On November 19, 2019, it was released as the first game on the Google Stadia cloud gaming platform.

Compared with the previous series, "Assassin's Creed: Odyssey" strengthens the role-playing element. The game will include dialogue options, branch missions and multiple endings. Players can choose the male protagonist Alexios or the female protagonist Kassandra. No matter which gender you choose, players can develop romantic relationships with male and female non-player characters. The game has a reward system. Every behavior or decision made by the player in the game will make a certain force dissatisfied, and reward the player, causing them to hire mercenaries to attack the player. As the reward index increases, the number and frequency of mercenaries appear Will also improve.

The protagonist is a descendant of King Leonida I of Sparta, and a mercenary in the game. He/she inherited the King’s Leonidas Broken Spear, and the player has special combat abilities. Specialization system, players can play three different specializations: warrior, assassin, hunter. Each specialization has its own unique skills, such as the fighter's Spartan kick; it also has its own specialization talent skill tree, where players can strengthen passive abilities and unlock new skills. Among the three specializations, "Warrior" improves melee ability, "Assassin" improves stealth ability, and "Hunter" improves archery ability. Replaced with dodge and parry systems to make the game overcome the sense of action. The game is newly added to the equipment system. Each piece of equipment has different data, advantages and disadvantages.

In this game, the elements of naval battles that have been loved by players return. Players can have their own ships to upgrade and recruit new deputy ships to explore the farther waters of the Aegean Sea and deal with more dangerous naval battles. The game also has a clash of forces system. Players can support either Sparta or Athens, and the two sides will conduct a conquest war; as currently known, the influence in this battle system will not have any impact on the story.