(to prevent Steam Cloud from overriding), launch the game, load the backup. If it works, save again, re-enable internet, and let it sync.
A player reached 50 million subscribers. Their cat jumped on the keyboard during an auto-save, corrupting the file. No manual backup. 200 hours lost. save data youtuber life 2
A: Yes. Mods that change UI or economy can break saves. Always backup before installing mods. (to prevent Steam Cloud from overriding), launch the