Valhalla Companion is a free Android app developed by Sebastian Kruse, which provides an unofficial offline map for Assassin's Creed Valhalla. This app is a utility tool that helps players to locate various in-game items, such as Ability, Altar, Animus Anomaly, Bureau, Cairn, Cargo, Cursed Symbol, Daughter of Lerion, Fly Agaric, Flying Paper, Flyting, Gear, Harbor, Highpoint, Ingot, Legendary Animal, Lost Drengr, Opal, Rigsogur Fragment, Roman Artifact, Standing Stones, Treasure Hoard Map, Treasures of Britain, and World Event.

The map is detailed and interactive, and tapping on the icons provides a detailed description of the location. Players can filter the map based on the type, location, and status of the item. Additionally, checklists can be used to track already completed actions or collected items. Users can also place their own markers with descriptions. To backup data or share it with multiple devices, iCloud sync is available.

It is important to note that Valhalla Companion is a third-party app, and the developer is not affiliated with Ubisoft Entertainment in any way. However, the app is permitted until withdrawal from Ubisoft Entertainment.