You experienced a "save bricking" glitch or a power outage while playing. 3. How to Restore Your Backup
The .bak file is an automatic backup created by the game or mod. You should use it if: Your game says Your characters have disappeared from the load screen. ER0000.co2.bak
: Inside, you'll see a folder named with a long string of numbers (your Steam ID). Open it. You experienced a "save bricking" glitch or a
the backup file by removing the .bak extension. It should change from ER0000.co2.bak to exactly ER0000.co2 . You should use it if: Your game says
If you’ve been adventuring through the Lands Between with friends using the , you might have noticed a mysterious file in your save folder: ER0000.co2.bak .
Restoring your progress is a simple matter of "swapping" the files. Delete (or move) the corrupted ER0000.co2 file.