Octopath Traveler II looks similar to the first game at a glance, but its Steam directory adds an explicit Steam branch and current transfer reports call out SystemData.sav alongside SaveData slot files. That makes whole-folder backup more important than copying a single large slot. SaveEditor records the current Microsoft Store WGS path separately and avoids claiming that a Game Pass blob can simply be renamed into a Steam SaveData file without the system-data context.
Identify the exact save you intend to edit
The researched Octopath Traveler II PC save location is Windows: Steam: %USERPROFILE%DocumentsMy GamesOctopath_Traveler2Steam<user-id>SaveGames ; Microsoft Store: %LOCALAPPDATA%Packages39EA002F.OCTOPATHTRAVELER2_n746a19ndrrjgSystemAppDatawgs. Known file/folder pattern: SaveData*.sav plus SystemData.sav on current Steam builds.. Storefront context: Steam, Microsoft Store. Steam and Game Pass storage differ. Current community migration notes identify both slot-sized files and separate system data in WGS. Do not edit a similarly named file from a different profile, edition, or cloud cache.
Make an untouched backup first
Copy the whole SaveGames directory on Steam, including SystemData.sav. For Microsoft Store, preserve all WGS containers before identifying slot and system payloads. Keep that copy outside the live save directory and do not overwrite it with later experiments. Cloud context: Steam Cloud and Xbox Cloud are documented. If a launcher can synchronize the save, prevent it from silently replacing either the original or edited copy while testing.
Understand the format boundary
The sequel uses a Steam-specific Documents branch and separates slot saves from system data. Microsoft Store uses WGS. SystemData should be backed up with the slots because it can contain state not represented by one SaveData file. File-extension context: .sav Compatibility note: Do not restore only one SaveData slot if you are trying to reproduce the complete profile state. Cross-store migration may need both slot and system payload handling. These facts help identify the save but do not automatically reveal every field, checksum, encryption rule, or version-specific structure inside it.
Use only a Tool whose claim matches the file
Generic viewers and diff tools can inspect bytes without claiming game-specific semantics. A game-specific editor should be used only when its Tool page explicitly lists Octopath Traveler II, a matching supported version/container, and a Verified operational runtime. A planned URL or Game Hub is not evidence that an editor exists.
Test the edited copy safely
Write to a new output file when the Tool supports it, keep the original backup, restore the edited copy into the correct profile/storefront location, and launch the game only after the file operation finishes. If the game rejects it, If an imported slot seems blank or incomplete, check whether SystemData came from the same snapshot and whether Steam Cloud restored the previous directory. Return to the untouched backup before trying another change.
Verification context: Reviewed against current PCGamingWiki Octopath Traveler II save path and 2026 community notes describing SystemData during WGS-to-Steam transfers.