It is the twelfth major installment in the Assassin's Creed series, and the successor to 2018's Assassin's Creed Odyssey. Principally set in the years 872–878 AD, the game recounts a fictional story during the Viking expansions into the British Isles. Players control Eivor Varinsdottir, a Viking raider who, while attempting to establish a new Viking clan in England, becomes embroiled in the centuries-old conflict between the Assassin Brotherhood, who fight for peace and liberty, and the Templar Order, who desire peace through control. Numerous people involved in the development of past Assassin's Creed games returned for Valhalla, including Ashraf Ismail, who served as the creative director for Assassin's Creed IV: Black Flag and Origins; Darby McDevitt, the lead writer for Black Flag and Assassin's Creed: Revelations and co-writer of Assassin's Creed Unity ; and composers Jesper Kyd and Sarah Schachner, who composed the game's soundtrack alongside musician Einar Selvik. Similarly to Origins and Odyssey, the team conducted extensive research into the time period to make the game world as historically accurate as possible, and drew inspiration from Norse mythology for certain narrative elements. The game had the biggest launch in the Assassin's Creed series to date, selling the most copies within its first week and becoming the second most profitable Ubisoft title of all time. Ubisoft supported Valhalla extensively with two years of additional content, including free questlines, events, and game modes, as well as three paid story expansions—Wrath of the Druids, The Siege of Paris, and Dawn of Ragnarök. The player has the choice of playing Eivor as either female or male , or letting the game alternate between the two at key moments in the story . The variety of weapons available to the player has been expanded to include weapons such as flails and greatswords. The player's companion animal is a raven named Sýnin who can be used to scout the nearby areas, much like previous avian companions had done in Assassin's Creed Origins and Odyssey, and other parts of the game world from afar before Eivor engages in combat.
