Ultima Underworld: The Stygian Abyss

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Ultima Underworld: The Stygian Abyss
Ultima Underworld: The Stygian Abyss cover
Blue Sky Productions
Origin Systems
Underworld engine
Release dates
DOS March 1992
Windows (DOSBox) June 2, 2011[1]
macOS (OS X) (DOSBox) October 18, 2012[2]
Ultima Underworld: The Stygian Abyss on HowLongToBeat
Ultima Underworld: The Stygian Abyss on IGDB
Ultima Underworld: The Stygian Abyss guide on StrategyWiki
Ultima Underworld: The Stygian Abyss on MobyGames
Ultima Underworld: The Stygian Abyss on Wikipedia
Ultima II: The Revenge of the Enchantress 1982
Ultima III: Exodus 1983
Ultima IV: Quest of the Avatar 1985
Ultima I: The First Age of Darkness 1987
Ultima V: Warriors of Destiny 1988
Ultima VI: The False Prophet 1990
Worlds of Ultima: The Savage Empire 1990
Ultima Worlds of Adventure 2: Martian Dreams 1991
Ultima VII: The Black Gate 1992
Ultima Underworld: The Stygian Abyss 1992
Ultima Underworld II: Labyrinth of Worlds 1993
Ultima VII Part Two: Serpent Isle 1993
Ultima VIII: Pagan 1994
Ultima Online 1997
Akalabeth: World of Doom 1998
Ultima IX: Ascension 1999

General information

GOG.com Community Discussions for game series
GOG.com Support Page


Source DRM Notes Keys OS
Floppies or CD-ROM; see run in DOSBox (retail).
Pre-packaged with DOSBox.[3] Includes Ultima Underworld II: Labyrinth of Worlds.
macOS (OS X)
Icon overlay.png
Not available in some regions.

Essential improvements[edit]


The Ultima Underworld 1 Patch is needed for floppy disk versions. The CD-ROM and GOG.com versions are already fully patched. An unofficial General MIDI patch is available here as well.

Run in DOSBox (retail)[edit]

To run correctly in DOSBox change cycles=auto to cycles=max.

Underworld Exporter[edit]

Use Underworld Exporter to play in higher resolutions, add mouse look, listen to higher quality/custom music, etc.
Some bugs still remain.
Can also be used to play Ultima Underworld II: Labyrinth of Worlds, but it is only partially supported at the moment.
Set up Underworld Exporter (Windows)[citation needed]
  1. Download and install the latest Github release.
  2. Find config and open it with your text editor of choice.
  3. Find Path_UW1= and place the path to your Ultima Underworld installation folder after the “=”.
    • That is, the folder with CRIT, CUTS, DATA, etc.
    • Note: All paths must end with a trailing slash \. Ex. C:\path\to\folder\
  4. To add music, download Music.Packs from the same location as the releases and extract. Afterwards, go into config, find UW1_Soundbank=, and then place the path to the folder containing your music of choice after the “=” .
    • The music pack gives one the choice between MIDI, Soundblaster, and PSX (PlayStation 1) versions of the OST.
    • One can use their own music files if they are in .ogg format.
  5. To use with the GOG.com version of the game, one must extract the files from game.gog; the folder UW is all one needs.
    • One method is to rename the file from game.gog to game.iso and then extracting the files using WinRAR or 7-zip.

Game data[edit]

Save game data location[edit]

System Location
DOS <path-to-game>\SAVE*\
Windows <path-to-game> (mounted in DOSBox)[Note 1]
macOS (OS X) ~/Library/Application Support/Boxer/Gamebox States/com.gog.ultima-underworld-1+2/Current.boxerstate/C Ultima Underworld 1 and 2.harddisk/UNDEROM1
The SAVE1, SAVE2, SAVE3 and SAVE4 folders are save slots I-IV. SAVE0 is temporary storage, not a save.
In-game settings are stored in each save rather than shared.

Save game cloud syncing[edit]

System Native Notes
GOG Galaxy


General settings.
General settings.

Graphics feature State Notes
Widescreen resolution
320x200 only.
4K Ultra HD
Field of view (FOV)
Set in Graphic Mode Setup (GOG.com) or toggle with Alt+ Enter.
Borderless fullscreen windowed
Anisotropic filtering (AF)
Anti-aliasing (AA)
Vertical sync (Vsync)
For DOSBox use an unofficial build (see the glossary page for other workarounds).
60 FPS
120+ FPS
An alternate shades.dat is available here which will increase the overall brightness of the game without destroying it's atmosphere. Use it if you feel the game is too dark.


Keyboard and mouse State Notes
For DOSBox use the DOSBox Mapper (see the glossary page for other workarounds).
Mouse acceleration
Mouse sensitivity
For DOSBox set in the DOSBox configuration file.
Mouse input in menus
To avoid mouse lag, set "sensitivity=200"
Mouse Y-axis inversion
Controller support
For DOSBox use the DOSBox Mapper (see the glossary page for other workarounds).


Audio feature State Notes
Separate volume controls
On/off only.
Surround sound
Everything is text-only after the opening cutscene.
Closed captions
Mute on focus lost


Chinese, Korean and Polish retail versions only have the manuals translated; the game itself is still in English.
Language UI Audio Sub Notes
Fan translation, download.

Issues fixed[edit]

Piano footstep sounds[edit]

The GOG.com version's sound is incorrectly configured by default to use the Roland MT-32. As the Roland MT-32 predated General MIDI, the sound effects will not match with what's normally expected.[4]

If you have issues with audio coming from one speaker or headphone, replace 2 7 220 1 sound with 4 -1 -1 -1 sound
Manually change audio settings (Windows)[4]
  1. Go to DATA in the installation folder.
  2. Edit UW.CFG
  3. Replace 6 -1 -1 -1 sound with 2 7 220 1 sound
  4. Save your changes.


This fix will also change the music's quality.
You can also adjust these settings using INSTALL.EXE or UWSOUND.EXE if they are present.
Manually change audio settings (OS X)[4]
  1. Go to Finder, Applications, Ultima Underworld 1+2.
  2. Right click Ultima Underworld 1 and choose Show Package Contents.
  3. Open Contents
  4. Open Resources
  5. Right click Ultima Underworld 1.boxer and choose Show Package Contents.
  6. Open C Ultima Underworld 1 and 2.harddisk
  7. Open UNDEROM1
  8. Open DATA
  9. Edit UW.CFG with TextEdit (right click, Open With)
  10. Replace 6 -1 -1 -1 sound with 2 7 220 1 sound
  11. Save your changes.
Configure DOSBox MIDI to use Munt[5]
  1. Download and Install Munt.
  2. In DOSBox command prompt, type mixer /listmidi to view the devices.
  3. In the configuration file, under section [midi], change midiconfig=0 to match the associated listed midi id (usually 1).


Munt requires the Roland MT-32 ROM which is not distributed in the same package. As an alternative, it may also be possible to try an alternate Software MIDI with a soundfont similar to the Roland MT-32.
The Roland MT-32 has support for reprogramming sounds. Therefore installing a soundfont-based MIDI and using an equivalent soundfont may not be an ideal solution in the general case.

Sluggish and/or jumpy mouse controls[edit]

The cursor may jump around in-game or mouse control may feel sluggish (especially on menu screens). To fix the first issue, disable joystick functionality; to fix the second, increase mouse sensitivity.
Fix jumpy mouse cursor (Windows)[6]
  1. Go to the installation folder.
  2. Edit dosboxULTIMA1.conf
  3. Set joysticktype to none
  4. Save your changes.
Fix sluggish mouse (Windows)[7]
  1. Go to the installation folder.
  2. Edit dosboxULTIMA1.conf
  3. Change sensitivity from 100 to 200. Experiment with this figure until your mouse feels right.
  4. Save your changes.

Windowboxing/black borders on all sides[edit]

By default, DOSbox does not scale to fullscreen vertical resolution, leaving black borders around the entire view area. This fix removes the black borders on the top and bottom, leaving only black borders on the left and right due to the original 8:5 aspect ratio
Fix fullscreen windowboxing[8]
  1. Go to the installation folder.
  2. Edit dosboxULTIMA1.conf
  3. Under [sdl], set output to ddraw and fullresolution to 0x0.
  4. Save your changes.

Other information[edit]


Technical specs Supported Notes
DOS video modes
Executable 32-bit 64-bit Notes
macOS (OS X)


Middleware Notes
Audio Audio Interface Library [9]

System requirements[edit]

Operating system (OS) DOS
Processor (CPU) IBM or 100% compatible 386SX, 386 or 486
System memory (RAM) 2 MB with Expanded Memory (EMS)
Hard disk drive (HDD) 11 MB
Video card (GPU) 256-color VGA graphics
Minimum Recommended
Operating system (OS) XP, Vista
Processor (CPU) 1.8 GHz
System memory (RAM) 512 MB
Hard disk drive (HDD) 48 MB
Video card (GPU) DirectX 7 compatible
macOS (OS X)
Operating system (OS) 10.6.8 (Snow Leopard) or later
Processor (CPU) Intel Core Duo 2 GHz+
System memory (RAM) 1 GB
Hard disk drive (HDD) 45 MB
Video card (GPU) 64 MB of VRAM


  1. File/folder structure within the installation folder reflects the path(s) listed for DOS and/or PC booter game data. For the GOG.com release, file changes in DOSBox are redirected to <path-to-game>/cloud_saves/ even if GOG Galaxy is not used (this folder contains all redirected files, so some files in the cloud_saves folder might be temporary files or other files that do not contain saves or settings).