Thief: Deadly Shadows

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Thief: Deadly Shadows
Thief Deadly Shadows cover.jpg
Release dates
May 25, 2004
Thief: Deadly Shadows at WineHQ
Thief: Deadly Shadows at Steam Charts
Thief: Deadly Shadows at SteamDB
 Thief: Deadly Shadows at Wikipedia
Thief: The Dark Project 1998
Thief Gold 1999
Thief II: The Metal Age 2000
Thief: Deadly Shadows 2004
The Dark Mod (unofficial spin-off) 2009
Thief (2014) 2014

Key points

Advantage The Sneaky Upgrade adds widescreen/multi-monitor support and fixes various issues.
Advantage The Thief Deadly Shadows Gold Mod removes loading zones, fixes enemy AI and fixes mission bugs.

General information

More information Community Discussions for game series
More information Support Page
More information Steam Community Discussions
More information Steam Users' Forums for game series


Source DRM Notes Keys DRM details are not known DRM-free
Steam Availability Table Icons - Steam.svg
Retail Disc check DRM: SecuROM disc check.

Essential improvements[edit]

v1.1 Patch (retail)[edit]

The latest retail patch is Patch v1.1. Digital distribution versions already include this patch.

Skip intro videos[edit]

Fix Change ShowIntroMovies in DEFAULT.INI

  1. Go to the installation folder.
  2. Go to the System folder and open DEFAULT.INI.
  3. Go to the [PCStartup] section.
  4. Change ShowIntroMovies=True to ShowIntroMovies=False
  5. Save your changes.


Information A detailed forum thread for mods and enhancements is available on the Steam Users' Forums

Sneaky Upgrade[edit]

Advantage Adds native widescreen/multi-monitor support and fixes compatibility issues.
Advantage Aims to provide an experience more like Thief: The Dark Project and Thief II.
Advantage Make the game more challenging in general.
Advantage Gets rid of most of the loading-zones in the levels.
Advantage Fixes mission bugs.
Advantage Expands some maps.
Information Includes both "The Minimalist Project" and "Thief Gold" mods.
Information Also includes John P.'s texture pack.
Information If you have used T3FovPatch, run it again and select 4:3 otherwise the Sneaky Upgrade's changes will be incorrect.[1]

Game data[edit]

Configuration file(s) location[edit]

Windows <path-to-game>\System\Default.ini

Save game data location[edit]

Windows <path-to-game>\save\SaveGames

Save game cloud syncing[edit]

System Native Notes
Steam Cloud Impossible
GameSave Manager Native

Video settings[edit]

Video settings.
Graphics option Option WSGF Notes
Widescreen resolution Hackable WSGF WS Bronze.svg Install the Sneaky Upgrade to unlock all resolutions in-game.
Multi-monitor Hackable WSGF MM Bronze.svg Install the Sneaky Upgrade to unlock all resolutions in-game.
Field of view (FOV) Hackable See Field of view (FOV).
Windowed Native Toggle with Alt+ Enter.
Borderless fullscreen windowed Impossible
Anisotropic filtering (AF) Impossible
Anti-aliasing (AA) Native Called MultiSampling; also see Use MultiSampling and Bloom together.
Vertical sync (Vsync) Native Disabling can cause lock picking and ladder issues.
High frame rate Impossible Refresh rates above 60Hz cause lock picking and ladder issues.

Field of view (FOV)[edit]

Fix Set Sneaky Upgrade VerticalFOV

  1. Install the Sneaky Upgrade.
  2. Run the game and set your resolution.
  3. Go to the SAVES\SaveGames\User Options folder in the installation folder.
  4. Open SneakyOptions.ini.
  5. Change VerticalFOV to the vertical FOV you want and save your changes.
Information FOV is calculated vertically; use the Battlefield: BC2 FOV Calculator to convert horizontal values.

Input settings[edit]

Keyboard and mouse Native Notes
Remapping Native
Mouse acceleration Impossible No mouse speed option in-game. Mouse speed seems to be also dependent on FPS.
Mouse input in menus Native
Mouse Y-axis inversion Native Set in Options, Control.
Controller support Impossible If plugged in, a controller can occasionally cause auto-walking.

Audio settings[edit]

Audio settings.
Audio options Native Notes
Separate volume controls Native Sound Effects and Music
Surround sound Native
Subtitles Native Subtitles for all speech (disabled by default).
Closed captions Impossible
Mute on focus lost Native
EAX support Native EAX 3,[2] EAX 4[3]

Issues fixed[edit]

Information A detailed forum thread for technical difficulties is available on the Through The Looking Glass forum.
Information TweakGuides has created a comprehensive guide for fixing issues in this game. It can be found here.

Intro movie keeps repeating[edit]

Information This problem occurs on multi-core systems and is fixed by the Sneaky Upgrade.

Fix Use Sneaky Upgrade

Install the Sneaky Upgrade.

Garrett gets stuck when lock picking or using ladders[edit]

Information This is caused by high frame rates; enable Vsync and use a refresh rate no higher than 60 Hz.

Fix Enable Vsync[4]

  1. Enable Vsync in-game.
  2. Ensure your in-game resolution has a refresh rate no higher than 60Hz.
  3. If problems persist disable Vsync in-game and force in the graphics card control panel instead.[5]

Game freezes or crashes when trying to load a save file[edit]

Fix Lower the resolution

  • Lowering the game's resolution is reported to have solved this issue for some users.

Temporary switch to desktop or black screen when loading[edit]

Fix Use Sneaky Upgrade

  1. Run the Sneaky Upgrade installer.
  2. When shown the installation options, enable the desktop effects fix.
  3. Continue installing normally. The game will now load without interruption.
Information A black screen may be seen momentarily at the start of loading a save when switching resolution.

Use MultiSampling and Bloom together[edit]

Information Deadly Shadows doesn't allow you to set both MultiSampling and Bloom in-game; enabling either will disable the other one.

Fix Enable both settings

  1. Enable Bloom in-game (leaving MultiSampling disabled).
  2. Force anti-aliasing through your graphics card's control panel.
  3. Both effects will now display together.

System requirements[edit]

Minimum Recommended
Operating system (OS)
2000, XP
Processor (CPU) Intel Pentium IV 1.5 GHz or AMD Athlon XP equivalent Intel Pentium IV 2.0 GHz or AMD Athlon XP equivalent
System memory (RAM) 256 MB 512 MB
Hard disk drive (HDD)
3 GB
Video card (GPU) 64 MB of VRAM
DirectX 9.0 compatible
Shader model 1.1 support
128 MB of VRAM
DirectX 9.0 compatible
Shader model 1.1 support


  1. Sneaky Upgrade: Unofficial patch for Thief 3 (widescreen, FM loading and tweaks)
  2. GameSpy: Thief: Deadly Shadows - Volume I
  3. Discovering EAX® 4.0 ADVANCED HD™ in Thief: Deadly Shadows™ -
  4. *BUG* Ladder/Lockpicking - Square Enix Forums