The patch contains various bugfixes and game improvements such as widescreen support, and provides some GUI tweaks. It also enables the use of the FMSel fan mission loader frontend with Thief 3 and bundles the most important T3 mods. It works with the GOG and Steam versions of the game.

Original game bugs and issues that have been fixed or improved:

  • New missions and restarted missions will use your chosen difficulty instead of Normal/Easy
  • The City sections are played on your chosen difficulty instead of always being on Normal
  • Frame rate and refresh rate limiting fixes broken lockpicking, ladder climbing and wall flattening
  • Some speed-up of level loading, especially with vsync on
  • Fix for the desktop being visible during level loading on Vista and up
  • The game will no longer crash when binding an analogue controller through the keybinds screen
  • Fix for controller axes sometimes being set up reverted
  • Fix for a crash that could happen when using the game's multisampling option
  • Fix for the mouse freezing or becoming invisible when using large font size settings in Windows
  • Fix for the mouse cursor not being captured on Windows 10
  • Improved compatibility with Windows 10 by installing the d3d8to9 wrapper DLL from ReShade

Game improvements:

  • All resolutions reported by the system, plus an optional custom display mode, are available from the options screen. The aspect ratio is shown as well
  • In widescreen the horizontal view is extended, instead of cropping off the top and bottom
  • The field-of-view can be specified by the user. The setting will work with both the original game and fan missions, with existing savegames and with missions which use scripted FOV changes. FOV adjustment includes the mechanical eye and bow zoom
  • The HUD and menus are shown correctly, regardless of resolution and aspect ratio. In 3-monitor modes, the HUD can be constricted to the center monitor
  • The main menu and loading screens are shown correctly, at 4:3 aspect. The proper movies, which are letterboxed, are allowed to crop to fit the monitor (up to 16:9)
  • Take screenshots with descriptive file names, and automatically with savegames
  • XBox360-type gamepads are working, the triggers are mapped to buttons. Support for up to 16 gamepad buttons using modifiers. Mouse and escape key emulation
  • Run the game on a display other than the primary
  • Multiple quick saves, quick load the most recent save, human-readable savegame folder names

As an FM loader, the emphasis is on ease of use and reliability:

  • Easy to set up – besides this patch there is nothing to install or configure
  • The contents of your game installation folder are never changed. (GarrettLoader has a habit of messing up your installation)
  • Works even if the game is installed in Program Files
  • Automatically installs custom conversations. (Used in the FM All the World's a Stage)
  • Fixes for crash on save and crash on exit in certain FMs, and for the mechanical eye zoom not working in many FMs
  • Fix for the in-game loot list showing wrong values and total in certain FMs
  • The FMSel supplied with the installer is slightly improved over the NewDark version
  • Works with NewDarkLoader and AngelLoader too

Additionally some optional tweaks have been incorporated:

  • Mirror and/or scale down the main HUD
  • Improved loading screen text: Scale it down, improve formatting
  • Minor HUD and GUI tweaks: Remove loading screen tips, mechanical eye overlay, main menu version text, "Nothing" texts, loot percentage, purple fog, 'bouncing arrows', junk item flashing and the lockpicking HUD
  • Always show the healthbar
  • Turn the short intro movies off, or replace them with the game's trailer
  • Alternative background modes for the readable/map and pause screens
  • Better mouse response and removed motion blur, adjust mouse sensitivity
  • More realistic physics, gravity multiplier
  • Scale the difficulty up or down. (Can be set to zero for a 'notarget' cheat)
  • Disable auto-raising of the blackjack and dagger
  • Reduce or remove headbobbing
  • No switch to third person in death
  • Classic speed. (Walk by default, run qualifier) and a speed multiplier
  • Decrease or increase the ambient fog or ambient light in any level
  • Bright mouse cursor
  • Turn down the volume of cutscenes and other videos
  • Borderless windowed mode
  • Sound volume for cutscenes and other videos

All tweaks are disabled by default.

The full edition includes the mods The Minimalist Project, The Collective Texture Pack (a.k.a. John P), "GarrAT" Garrett Animation Tweaks, Thief 3 Gold, Briefing Videos and a small mod providing updated font textures. Please see those threads or the included readme files for more information. The update edition only includes the SU patch and the SneakyTweaker tool. It provides a much smaller download in cases where the mods are unchanged since the last release.


Tester hall of fame: Estel Randir, Adsk1, Acleacius, Abysmal, fortuni, Maruchin, Linda, noblehelm, Cigam, mensch, AluminumHaste, Depili, Kerrle, decayedmatter, DJ Riff, lowenz, Lolwutman, Corsair, bikerdude, Beleg Cúthalion, Child Of Karras, gnartsch, chrish, Pheonix, PsymH, Hiatus, tolsen64, Xarg, Zaratul, voodoo47, Lord Soth, scavvenjahh, scarcow and TreyM.

This patch builds on previous fixes and ideas etc. from the following sources: massimilianogoi, tolsen64, Hadley, NotCarolKaye, daremo, Xiaopang, New Horizon, Pheonix, Kerrle, lolwutman, swaaye and UCyborg... Face-eating warning borrowed from Voodoo47.

A huge thanks goes to le Corbeau for NewDark and FMSel, to John P, New Horizon, Beleg Cúthalion and mensch for permission to include their mods, and to the FMSel translators: gnartsch (German), Briareos H (French), raven4444 (Polish), DonSleza4e and Glypher (Russian). Thanks also to clearing, Lord Soth and Esme for file mirrors.

  • View media
  • View media
  • View media
  • View media
  • View media
  • View media
Post article RSS Articles

1.1.10 is out. The core Sneaky Upgrade has the following changes:

  • New tweak to disable health bar auto-hiding (with a tweak override in the MP)
  • New tweak to improve formatting of the loading quote text (with an override in T3G)
  • New tweak to use a bright mouse cursor
  • The SneakyTweaker tool will now show a message box on start-up, warning about a few things that seem to confuse people the most
  • SneakyTweaker is now aware of AngelLoader use
  • Added an option to install the d3d8to9 wrapper DLL from ReShade
  • 'Direct load' is disabled in fullscreen when a D3D wrapper DLL is in use. (Would cause crashes)
  • Press Shift+Ctrl+Alt+End to end the current mission. (Can be disabled in the tweaker)
  • The game should now start in the desktop resolution for first-time installers (or if you chose to delete the options files while installing)
  • FMSel updated to version 1.1.2, now including Russian translation

A couple of people have installed the SU and then wondered why their existing saves appeared to be missing - and it really wasn't obvious... So the tweak tool will now show a dialogue explaining this, plus a couple of other non-obvious things. The dialogue can be easily disabled.

To improve compatibility with Windows 10, the installer now provides a wrapper DLL to make the game run on Direct3D 9, in the form of the d3d8to9 DLL from ReShade. If you have dgVoodoo or something else installed already, the installer will respect that and not install d3d8to9 by default.

It has often been suggested to copy the skip-the-current-mission function from Thief 1-2. This is now in place, with a couple of limitations: City sections can't be skipped but must be played through normally. This is the only caveat for Thief 3 Gold. The original (non-T3G) missions can only be ended from one of the half-maps and, worse, ending the Pagan and Kurshok missions will not cause the objectives to be ticked off, so it may not be possible to continue. (This has been fixed in Thief 3 Gold.)

New stuff in the mods:

Minimalist Project:

  • Fixed a bug where picking up loot would trigger a video if loot glint was disabled
  • Restored speed settings from the original MP, creep is now non-silent again
  • Optional arrow trails. (Gameplay part)
  • The classic health bar and classic-ish lightgem/compass are now optional. (GUI part)
  • Fixes for original bugs causing extra playstyle objectives and restrictions to not show up
  • Removed redundant 'do not kill non-combatants' restriction on Ghost
  • Smaller and more evenly sized text on maps, especially with the Fonts mod enabled
  • Various fixes, mostly to make the separation of the gameplay and GUI parts more consistent

Here's an example of the new map text compared to the original MP - notice the partially missing text on the upper left in the original. (GIF, should animate.)

MP map text improvement

Note that because of gamesys changes the savegame version for Minimalist has been bumped - so anybody wanting to use MP savegames from previous stable releases should not update.

The Fonts mod:

  • Added 'gold' symbol to all fonts (replacing yen)
  • Fixed an issue with disappearing map text - in English, at least. In other locales there may still be a few cases

Here's an example of the currency symbol in use:

'Gold' currency symbol

Thief 3 Gold:

  • Removed overriding .sch files to better accommodate unofficial translations
  • Changed a couple of scripts to make it possible to skip through the Pagan and Kurshok missions

One of the removed .sch files was there to improve the formatting of loading quotes - that's now done by overriding a general tweak setting. The other one would slightly rename savegames so that original and T3G saves could be told apart - an artifact from early T3G versions, really. For a long time T3G saves have been kept separate and they contain a file specifying which version of T3G they're for, so the .sch file has been removed.

Here's a video showing some of the above: Bright cursor, custom resolution set to follow the desktop, nicer loading screen quotes, skipping missions. Minimalist playstyle restrictions shown in the briefing, non-silent creep, classic HUD with original health bar / lightgem, arrow trails:

Thanks to everyone who tested the betas, especially Estel Randir for lots of MP feedback and suggestions. Also thanks to Glypher and DonSleza4e for the Russian FMSel translation.

There are no changes to the mod content, so the Update Edition can be used for beta installs. If upgrading from use the Full Edition and make sure to install the new versions of the MP, T3G and Fonts mods.

Get it from the files section.

Sneaky Upgrade released, fixing one bug

Sneaky Upgrade released, fixing one bug


Fix for a bug in the tweaker's Minimalist Project playstyles option

Sneaky Upgrade Editor Edition 1.1.9 released

Sneaky Upgrade Editor Edition 1.1.9 released

News 1 comment

Many changes, including one that makes very large maps possible!

Sneaky Upgrade 1.1.9 released

Sneaky Upgrade 1.1.9 released

News 4 comments

Improved configurability for the Minimalist Project, fix for multi-monitor cursor issues, new Fonts mod.

Sneaky Upgrade Beta

Sneaky Upgrade Beta


A Beta with multi-monitor fixes, Minimalist improvements and new font textures.

RSS Files
Sneaky Upgrade Full Edition

Sneaky Upgrade Full Edition

Patch 56 comments

Unofficial patch for Thief 3: Bugfixes, widescreen support, GUI tweaks, FM loading. This version includes the mods The Collective Texture Pack, Garrett...

Sneaky Upgrade Update Edition

Sneaky Upgrade Update Edition

Patch 2 comments

Unofficial patch for Thief 3: Bugfixes, widescreen support, GUI tweaks, FM loading. Much smaller download for when there's no changes to the bundled mods...

Sneaky Upgrade Editor Edition

Sneaky Upgrade Editor Edition


Unofficial patches for the Thief 3 Editor: Have multiple independent editor installs, launch the patched game exe through "Send to Xbox", generate IBT...

Sneaky Upgrade Beta

Sneaky Upgrade Beta

Patch 35 comments

This beta is obsolete - get the 1.1.10 Full Edition instead.

Thief 3 Loot Hunter

Thief 3 Loot Hunter

Other 6 comments

Crude tool for locating loot, keys and arrows in Thief 3 and (primarily) its fan missions. Be sure to read the readme!

Comments  (0 - 10 of 120)

Is there a way to play with Steam Overlay / Steam Controller support?

Reply Good karma Bad karma+1 vote
snobel Creator

You need to add Thief3.exe as a non-Steam game.

Reply Good karma+1 vote

I tried and it doesn't work. The game starts as a normal game. I managed this by creating a script that runs the Thief3.exe file. In Steam I added this script as a non-Steam game.

Reply Good karma Bad karma+1 vote
snobel Creator

Weird - just adding Thief3.exe still works for me. At least the overlay, I don't have a controller.

Reply Good karma+1 vote

This comment is currently awaiting admin approval, join now to view.


I actually have a similar question as to the last post. I'm on the "into the pagan sanctuary" and the youtube walkthroughs have 100% loot whereas I only have 99%. Is there an extra bit of loot somewhere that was added?

And is there any other missions like this where the loot is different than the vanilla game?

Reply Good karma Bad karma+1 vote
snobel Creator

AFAIK, there's no change in loot in the Pagan map. Do you have the exact same items as the walkthrough, but still only 99%?
To my knowledge the only loot changes in T3G is in the Inn and Seaside Mansion maps, and for the latter it's optional and must be enabled before you start the map.

Reply Good karma+1 vote

Yes, I get the same items. It's actually the first 2 bits of loot you can get in the mission. In the walkthrough, he gets 6% loot and I get 5% with the exact same items. Then the stats at the end of the mission say I missed $25.

Reply Good karma Bad karma+1 vote
snobel Creator

Can you provide a link to that walkthrough?

Reply Good karma+1 vote

The first pick up is 3:34 and the 2nd is 3:58. The loot total is the same ($150) but the % is different and then the stats screen at the end says 99% and missing $25.

Reply Good karma Bad karma+1 vote
snobel Creator

The first piece of loot is right at the start (1:52). Counting that, it adds up OK.

Reply Good karma+1 vote

LOL, Yes, I did miss that one I skipped the talk scene on the video! Sorry for the trouble.

Thanks for your help!

Reply Good karma Bad karma+1 vote
Post a comment
Sign in or join with:

Only registered members can share their thoughts. So come on! Join the community today (totally free - or sign in with your social account on the right) and join in the conversation.

Follow Report Profile
Thief: Deadly Shadows
Send Message
Release date
Mod watch
Community Rating



14 votes submitted.

You Say


Ratings closed.

Single Player
Embed Buttons
Link to Thief 3 Sneaky Upgrade by selecting a button and using the embed code provided more...
Thief 3 Sneaky Upgrade
Last Update
162 members