How do I fix the "World Corrupted" error in Valheim 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 unexpected crashes, improper shutdowns, or syncing issues between the host and players. Understanding the game''s save mechanics is crucial: Valheim saves world data locally on the host''s machine, while player data is stored individually. If the world file becomes corrupted, it can prevent the host or other players from accessing the world.\n\nTo fix the ''World Corrupted'' error, start by locating your world save files. On Windows, these are usually found in the AppData folder under LocalLow\IronGate\Valheim\worlds. Look for files with the same name as your world, which will have extensions like .fwl (world metadata) and .db (world data). If you have a backup of your world files, replace the corrupted files with the backup. Valheim automatically creates backups named with a .old extension, so check for files like ''YourWorldName.db.old'' and rename them to ''YourWorldName.db'' to restore the backup.\n\nIf no backups are available, you can try using a third-party tool like Valheim World Modifier to repair the corrupted file. These tools can sometimes recover lost data or fix minor corruption issues. However, this method is not guaranteed to work, so always back up your world files regularly to avoid losing progress. To create manual backups, simply copy the .fwl and .db files to a separate folder on your computer or an external drive.\n\nAnother common cause of the ''World Corrupted'' error is mismatched mods between the host and players. If you are using mods, ensure that all players have the same mods installed and that they are up to date. Mismatched or outdated mods can cause conflicts that lead to corruption. Disable mods temporarily to see if the issue persists, and re-enable them one by one to identify the problematic mod.\n\nFor players experiencing this error when joining a server, the issue might be related to syncing problems. Ask the host to restart the server and ensure that all players have a stable internet connection. If the problem persists, the host should verify the integrity of the game files through Steam. To do this, right-click Valheim in your Steam library, select Properties, go to the Local Files tab, and click ''Verify Integrity of Game Files.'' This process can fix missing or corrupted game files that might be causing the issue.\n\nIn some cases, the ''World Corrupted'' error can be caused by hardware issues, such as a failing hard drive. If you suspect this might be the case, run a diagnostic tool to check your hard drive''s health. Moving Valheim to a different drive or upgrading to an SSD can also improve performance and reduce the risk of corruption.\n\nFinally, if all else fails, you may need to start a new world. While this can be disappointing, it is an opportunity to apply the lessons learned from your previous playthrough. Use this chance to explore new biomes like the Mistlands or Plains, experiment with different building styles, or focus on crafting high-tier items like the Draugr Fang bow or padded armor. Remember to back up your new world files regularly to avoid future issues.\n\nTo prevent the ''World Corrupted'' error in the future, always exit the game properly by using the in-game menu to save and quit. Avoid force-closing the game or shutting down your computer while Valheim is running. Additionally, consider using a dedicated server instead of hosting locally, as dedicated servers are less prone to corruption and provide a more stable multiplayer experience. By following these steps and tips, you can minimize the risk of encountering this error and enjoy a smoother Valheim multiplayer experience.