Outer Wilds progression is tied to a player profile rather than a conventional numbered save-slot folder. Back up the full LocalLow game directory and verify the active storefront profile before restoring.
For this PC reference, the documented storage is Windows: %USERPROFILE%AppDataLocalLowMobius DigitalOuter Wilds. The known file or folder pattern is profile and expedition/progression records, with storefront-specific profile subfolders. Outer Wilds keeps progression in LocalLow and can separate profile data by storefront/account context. Preserve the whole Mobius Digital game directory before profile migration.
Backup guidance: Close Outer Wilds, let the launcher finish any synchronization, then copy the complete documented save directory to a dated folder outside the live path. Preserve companion files rather than selecting only the newest-looking record. Cloud support differs by storefront; synchronize first and retain an offline profile backup. Launcher and cloud context matters because The active Steam, Epic Games Store installation determines which local profile and cloud copy can overwrite the save. Identify the storefront and account before restoring files.
Compatibility and recovery should stay conservative. Treat saves as version-, storefront-, account-, and mod-sensitive unless the game or a separately verified migration workflow proves otherwise. A similar filename or extension is not evidence that two releases are interchangeable. If the expected progress is not visible, If progress is missing after a restore, confirm the active Windows account, storefront/profile, cloud state, and exact directory first. Restore the untouched backup before experimenting with individual files or older autosaves. SaveEditor.com only labels a game-specific editor as available when a separate linked Tool has a verified operational runtime; this reference page by itself is not an editor claim.