Where Are Thief Deadly Shadows Save Files Located?
Thief: Deadly Shadows keeps saves in the install tree, with Sneaky Upgrade mod files in ProgramData.
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Thief: Deadly Shadows stores saves in save\SaveGames inside the install folder, with options in save\SaveGames\User Options and defaults in System\Default.ini. Steam Cloud and GOG Galaxy both sync the tree, so installs stay covered.
The Sneaky Upgrade changes the picture. Mods and fan missions live in ProgramData\Thief 3 Sneaky Upgrade, and the T3 Gold variant keeps incompatible saves separate by design. Linux runs through Proton under app ID 6980. Back up the install save tree with the game closed.
Where Thief: Deadly Shadows stores this, by platform
<install>\Thief Deadly Shadows\save\SaveGames
SaveGames plus User Options in the install tree, synced by Steam Cloud and GOG Galaxy. Sneaky Upgrade mods live in ProgramData. T3 Gold saves stay separate; disabling Gold restores originals.
~/.steam/steam/steamapps/common/Thief Deadly Shadows/save/SaveGames
Same install-relative save tree in the native Linux library for app 6980. Sneaky Upgrade installs through Proton with the same layout.
Frequently asked questions
Should I install Sneaky Upgrade?
Install Sneaky Upgrade first; it is the de facto patch. It fixes widescreen, load times and modern Windows issues, and its tweaker exposes options the stock game never had.
My saves vanished after enabling Thief 3 Gold. Why?
T3 Gold keeps its own save set apart from the base game. Disabling Gold in the installer restores the original saves to the menu. Never mix the two sets by hand.
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