Where Are ONE PIECE: Grand Gourmet Save Files Located?
Grand Gourmet saves under LocalAppData\OPGG\saves\<SteamID>, an abbreviation that has nothing to do with the game's title.
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ONE PIECE: Grand Gourmet uses the folder name OPGG for its save data: %LOCALAPPDATA%\OPGG\saves\<SteamID64>. Searching for One Piece or Grand Gourmet in AppData will not find it. The install directory is closer to the title, but it drops the colon and becomes ONE PIECE Grand Gourmet.
Kairosoft built the game and Bandai Namco published it. The Steam release arrived on October 22, 2026, and the publisher also lists Switch, iOS and Android versions. Steam Cloud is listed, so the per-account save folder should follow you between PCs. Copy the OPGG folder before a reinstall if you want to keep a restaurant layout exactly as it was.
Where ONE PIECE: Grand Gourmet stores this, by platform
%LOCALAPPDATA%\OPGG\saves\<SteamID64>
The Saves folder is inside OPGG, with one subfolder per Steam account. The game does not use a One Piece or Grand Gourmet folder name.
<SteamLibrary>/steamapps/compatdata/3905010/pfx/drive_c/users/steamuser/AppData/Local/OPGG/saves/<SteamID64>
Steam Play prefix for App ID 3905010. The Windows tree is mirrored inside it.
Frequently asked questions
Where are ONE PIECE: Grand Gourmet saves on PC?
In %LOCALAPPDATA%\OPGG\saves\<SteamID64>. The OPGG folder is the only name the PC version uses, so searching for the full title in AppData finds nothing.
What does OPGG stand for?
It is the internal abbreviation for One Piece Grand Gourmet. Kairosoft's folder names often shorten the title, and the store title does not appear anywhere in the save path.
Does ONE PIECE: Grand Gourmet use Steam Cloud?
Yes, the store page lists Steam Cloud. The save folder is per Steam account, so a different account gets a different restaurant and a separate set of recipe progress.
Are mobile saves compatible with the PC version?
The phone versions use their own app containers, not the Windows OPGG folder. There is no documented cross-save between the PC and mobile releases, so treat them as separate restaurants.
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