If you already own Assassin’s Creed Valhalla, you’ll get Discovery Tour: Viking Age absolutely free. If Valhalla never captivated you enough to purchase the game, but Discovery Tour: Viking Age does look interesting, you can still get this expansion for € 19.99. Note: this currently only applies to PC; the standalone version of the expansion will not be released for consoles until 2022.
The release of the expansion is about a month away from us. Ubisoft plans to share more details about the contents of this expansion soon.