How do I fix the "World Corrupted" error in multiplayer?

The ''World Corrupted'' error in Valheim multiplayer can be a frustrating issue, but it is often fixable with the right steps. This error typically occurs when the game fails to load a world file due to data corruption, often caused by improper shutdowns, server crashes, or file conflicts. Understanding the game mechanics behind world saves and multiplayer hosting is key to resolving this issue.\n\nFirst, it''s important to know that Valheim worlds are saved locally on the host''s computer, even in multiplayer. The host''s world file is shared with other players when they join the session. If the host''s world file becomes corrupted, all players will encounter the ''World Corrupted'' error when trying to load it. To fix this, the host should locate their world save files, which are stored in the ''worlds'' folder within the Valheim game directory. On Windows, this is typically found in ''C:\Users\[YourUsername]\AppData\LocalLow\IronGate\Valheim\worlds''.\n\nOnce the host has located the world save files, they should look for two files: one with the ''.fwl'' extension and another with the ''.db'' extension. These files represent the world data. If one or both of these files are corrupted, the host can attempt to restore a backup. Valheim automatically creates backups of world files, which are stored in the same directory with the same names but with a ''.old'' extension. Renaming the ''.old'' files to replace the corrupted ones (e.g., renaming ''worldname.fwl.old'' to ''worldname.fwl'') can often restore the world.\n\nIf the backup files are also corrupted or unavailable, the host can try using a third-party tool like the ''Valheim World Modifier'' to repair the world file. This tool allows users to edit and fix corrupted world files, though it requires some technical knowledge. Alternatively, if the host has access to a previous save from another player, they can use that save to replace the corrupted one. This is why it''s a good idea for multiple players to back up their world files regularly.\n\nTo prevent future corruption, ensure that the game is properly shut down and that the server is not interrupted during saves. Avoid using mods that conflict with world data, and always back up your world files after significant progress. If you''re hosting a dedicated server, consider using a server management tool that includes automatic backups and crash recovery features.\n\nFor new players, it''s important to understand that Valheim''s world data is tied to the host. If the host loses their world file, the entire group may lose access to that world. Experienced Vikings should encourage regular backups and consider rotating hosting responsibilities to distribute the risk. By following these steps and precautions, you can minimize the impact of the ''World Corrupted'' error and keep your multiplayer adventures running smoothly.