Risk of Rain 2 is useful for backups because the profile files are visible XML, but that does not make arbitrary edits safe. Copy the LocalLow folder first and use only version-aware tooling for changes.
For this PC reference, the documented storage is Windows: %USERPROFILE%AppDataLocalLowHopoo Games, LLCRisk of Rain 2. The known file or folder pattern is profile .xml files and related preference/progression data. Risk of Rain 2 stores player progression in XML profile data under LocalLow. XML readability does not imply every field is safe to edit; preserve schema/version and a clean backup.
Backup guidance: Close Risk of Rain 2, 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. Steam Cloud can synchronize profile XML; a cloud conflict can revert unlock/progression changes. Launcher and cloud context matters because The active Steam 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.