Where Are Metal Gear Solid Delta Save Files Located?
Metal Gear Solid Delta keeps PC saves in AppData Local under MGSDelta Saved SaveGames, inside a folder named for your Steam user ID.
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The PC build is Unreal Engine 5, so it follows the engine convention: a MGSDelta folder in your local AppData, with saves nested two levels down. Inside SaveGames you will find one folder per Steam account, named with the numeric Steam user ID.
Back up the whole MGSDelta folder rather than single files. That catches the account folder plus the Config folder next to it, and it restores cleanly if you paste it back before launching the game.
Where Metal Gear Solid Delta: Snake Eater stores this, by platform
%LOCALAPPDATA%\MGSDelta\Saved\SaveGames
Each Steam account on the PC gets its own numbered subfolder. The .sav files inside are the campaign progress. Config sits in MGSDelta Saved Config Windows next to it.
<SteamLibrary>/steamapps/compatdata/2417610/pfx/
Proton prefix for app ID 2417610. The Windows MGSDelta path is mirrored inside the prefix drive, so look there when a save is missing on Deck or desktop Linux.
Frequently asked questions
How do I back up Metal Gear Solid Delta saves on PC?
Copy the whole MGSDelta folder elsewhere before a reinstall or a driver update. Paste it back to the same AppData path and Steam Cloud will accept it as current.
Can I copy this PC save to a PlayStation or Xbox?
No. The console builds keep saves in system storage managed by the console itself. Copy them with the console backup tool or the platform cloud sync instead.
Why is there a numbered folder inside SaveGames?
That subfolder is your Steam account ID. If you share the PC, each account gets its own folder, so only back up the one that matches your profile.
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