0.221.13|May 6, 2026
View on Steam↗Patch 0.221.13 (Public Test)
2/5 Minor
PTCValheim introduces a new chunk-based world save system to significantly increase save speeds and prevent file corruption.
Key Changes
- 1New chunk-based world save system for improved performance
- 2Faster saving times by only writing modified data chunks
- 3Reduced risk of save corruption through post-save validation checks
- 4World data is now stored in folders with split files instead of single .db/.fwl files
- 5Automatic backup creation when migrating older world files to the new system
All Changes
⚙️Technical Systems(10)
- newworld saves: Introducing a new world save system
- changeworld saves: The new save system only affects world saves
- changecharacter saves: Character saves remain the same
- fixworld saves: When saving, only the chunks that have been modified are saved to improve performance
- changeworld saves: World saves are now stored in folders instead of .db and .fwl files
- changeworld saves: The world (.db) file is now split up into multiple files (chunks)
- changeBackups: Backups are stored in separate folders
- changeworld saves: When loading a world that is not chunked, a backup is made first to prevent data loss
- fixworld saves: The save system performs extra checks after saving to reduce the risk of a corrupt save
- changecloud storage: New limitation in cloud storage regarding the number of files saved due to the chunked system
Summary
World Save System Overhaul
This update introduces a fundamental change to how Valheim handles world data on the Public Test branch. By moving to a chunk-based system, the game now only writes modified data during saves, leading to faster performance and significantly reduced risks of file corruption. While character saves remain unchanged, world files are now stored in dedicated folders with split data chunks rather than monolithic .db and .fwl files.