Assassin's Creed Valhalla is an action role-playing game set in the Viking Age. The player takes on the role of a Norse warrior named Eivor and embarks on a journey to settle in a new land, England. It is set in the 9th century. Eivor is a member of the Raven Clan who lead their people to settle in a new land, England. The story is centered around Eivor's pursuit of a better life for their people and their struggle to establish their place in a foreign land filled with danger and political intrigue.

The gameplay focuses on both exploration and combat, with players able to roam the open world and engage in a variety of activities such as raiding, hunting, and trading. It features an upgradeable skill tree, allowing players to tailor Eivor's abilities to their playstyle. Combat emphasizes a mix of stealth and brute force, with players able to perform a variety of combos and special moves.

It also introduces a new settlement system, where players can build and manage their own Viking settlement. The game features a dynamic weather system, with changes in weather affecting gameplay and the environment. Additionally, the game features a branching dialogue system, allowing players to make choices that impact the story and their relationships with NPCs. Overall, Assassin's Creed Valhalla offers a mix of action, exploration, and RPG elements.

Throughout the game, Eivor encounters various historical figures such as King Alfred of Wessex, as well as members of the Order of the Ancients, a precursor to the Templars, who seek to control the fate of England. Eivor's actions shape the political landscape of England, and players have the opportunity to make choices that impact the story and the relationships they have with characters in the game.

The story explores themes of identity, power, and the struggle for control, as Eivor navigates the complex world of medieval England and the conflicting interests of various factions. It weaves together historical events with a tale of a warrior seeking to forge a new life for their people.