From PCGamingWiki, the wiki about fixing PC games
Doom cover
id Software
Mac OS Lion Entertainment, Inc.
Linux Dave Taylor
GT Interactive
id Software
id Tech 1
Release dates
DOS December 10, 1993
Mac OS December 10, 1993
Linux 1994
Windows August 20, 1996
Doom 1993
Doom II: Hell on Earth 1994
Final Doom 1996
Doom 3 2004
Doom 64 EX 2011
Doom 3: BFG Edition 2012
Doom (2016) 2016

This page is for the original game. For the 2016 game, see Doom (2016).

Key points

Runs on very low-end hardware.
The Doom engine was made open source in 1997, making the game very mod-friendly.

General information

Doom Wiki
Doomworld — A major fansite for the series Community Discussions for game series Support Page
Steam Community Discussions
Steam Users' Forums for game series


Source DRM Notes Keys OS
Retail DOS
GamersGate The Ultimate Doom (base game plus Episode IV: Thy Flesh Consumed).
Humble Store
Steam The Ultimate Doom (base game plus Episode IV: Thy Flesh Consumed). Can be played without Steam.
A shareware episode is also available (comes with the first episode, "Knee-Deep in the Dead").
The shareware IWAD can be downloaded separately from the main release (to be used with source ports).

Version differences[edit]

Alpha and Beta releases[edit]

A list of all alpha, beta, and shareware versions of the game can be found at Doomworld Shareware section. Details about each alpha and beta release can be found both on The Page of Doom and the Doom Wiki. Note that the .WAD files available in the alphas and beta are not compatible with any Doom source port.

Essential improvements[edit]

Source ports[edit]

Since the release of the source code, several modified engines have emerged.

You can view a more exhaustive list on Wikipedia or a set of comparison tables on The history of various source ports is examined on Doomworld.


A freely redistributable replacement of DOOM-like assets is available at Freedoom, forming a completely free and open source game. Art assets from the original game such as the levels, sounds, textures, etc., remain under copyright. They can be purchased from Steam or copied from an original game disk.

Game data[edit]

Configuration file and save game data location[edit]

System Location
DOS <path-to-game>\DOOMDATA\
Windows <path-to-game>\Utimate Doom for Windows 95\
Steam <Steam-folder>\SteamApps\Common\Ultimate Doom\base\
Mac OS
C:\DOOMDATA is used if running v1.1 or from CD; C:\DOOM_SE is used if The Ultimate Doom is installed from CD.

Save game cloud syncing[edit]

System Native Notes
Steam Cloud

Video settings[edit]

In-game options menu.
In-game options menu.
Graphics option Option WSGF Notes
Widescreen resolution
A source port is required. See Source ports.
When using the GZDoom port. See Multi-monitor.
Field of view (FOV)
See Field of view (FOV).
Toggle with Alt+ Enter in DOSBox or its source ports, if supported.
Borderless fullscreen windowed
Anisotropic filtering (AF)
A source port is required. See Source ports.
Anti-aliasing (AA)
A source port is required. See Source ports.
Vertical sync (Vsync)
A source port is required. See Source ports.
60 FPS
Capped at 35 FPS;[1] for 60+ FPS see Source ports.
120+ FPS


ZDoom seeks to support multiple monitors out of the box since version 2.5.0. Widescreen Gaming Forum discusses multimonitor set ups with GZDoom.

Field of view (FOV)[edit]

Depending on your choice of engine, you can usually change the field of view with a console command, or even in the options. Try fov <1-179> or gr_fov <1-179>.

Input settings[edit]

Keyboard and mouse Native Notes
Keys can be remapped for the DOS version with the SETUP.EXE program. A source port offers broader support for key remapping.
Mouse acceleration
A source port is required. See Source ports.
Mouse sensitivity
Mouse sensitivity in the DOS version in the in-game options menu. Source ports also provides mouse sensitivity options.
Mouse input in menus
A source port is required. See Source ports.
Mouse Y-axis inversion
A source port is required. See Source ports.
Controller support
Full controller support
Controller remapping
A source port is required. See Source ports.
Controller sensitivity
Controller Y-axis inversion
A source port is required. See Source ports.
Additional information
Button prompts Input settings icon - Generic Controller.svg
Controller hotplugging
Haptic feedback

Audio settings[edit]

Audio options Native Notes
Separate volume controls
Sound Effects, Music
Surround sound
A source port is required. See Source ports.
No spoken dialogue.
Closed captions
Only pickups sounds have linked messages.
Mute on focus lost
A source port is required. See Source ports.
EAX support
A3D 3.0 and EAX 2.0 can be used in the jDoom port[2][3] (A3D support discontinued since version 1.7.0)[4]
A3D can be hacked in the WinDoom port through IAS[5]


Language UI Audio CC Notes


Multiplayer types

Type Native Players Notes
Local play
Use Doom Legacy.
LAN play
4 Co-op, Versus
Online play
4 Co-op, Versus
A source port is recommended for online play as it adds modern networking support and simplifies the process of finding games. Most major source ports (like Zandronum) also increase the max player limit (for Zandronum, the limit is 64)

Connection types

Type Native Notes
Requires source port.
Direct IP
Possible in source ports.

Issues fixed[edit]

Game does not run in DOSBox (Steam)[edit]

Set up compatibility settingsref [6]
  1. Right click on the DOOM.exe file (located at <path-to-game>\base) and select "Properties".
  2. Go to the "Compatibility" tab and enable Compatibility Mode (set it to "Windows 95").
  3. Open the ultimate.conf file with Notepad or similar text editor.
  4. Set fullscreen to false, fulldouble to false, and waitonerror to false.
  5. Save the changes made to the file.
  6. Repeat Steps 3-5 for the ultimatem.conf file.
  7. Open the dosbox.conf file with Notepad or similar text editor.
  8. Set waitonerror to false and save the changes.
  9. Launch the game.

Doom95 doesn't start on Windows 7[edit]

Apply necessary fixes
  1. Apply a palette fix (see Rainbow color problems in older games).
  2. Right click the DOOM95.exe and go to Compatibility Tab.
  3. Set Windows 95 compatibility+Run the program as administrator
  4. Now download the MouseFix and extract it to Doom95 folder.
  5. Run the program:at the end of the page,click the install button.
  6. Use the Configure button to enable Vertical Axis,smooth the mouse and add parameters.
  7. Now run DOOM95.exe and set the maximum resolution (Advanced/Screen Resolution).
  1. Go to %WINDIR%\SysWOW64
  2. Copy dplayx.dll and paste it into the game installation folder.
  3. Rename the copied file to dplay.dll

Other information[edit]


Technical specs Supported Notes
Direct3D Various A source port is required. See Source ports.
DirectDraw 2 Doom 95 only.
OpenGL Various A source port is required. See Source ports.
Software renderer
DOS video modes VGA
64-bit executable
A source port is required. See Source ports.

System requirements[edit]

Minimum Recommended
Operating system (OS) MS-DOS 6.2
Processor (CPU) Intel 386 Processor Intel 486 Processor
System memory (RAM) 4 MB 8 MB
Hard disk drive (HDD) 100 MB
Video card (GPU) VGA graphics card


  1. VOGONS • View topic - Doom in DOS: Original vs Source Ports
  2. JDoom + SBLive! + a3dapi.dll support file = INCREDIBLE! - New Doom Forums
  3. About: The Doomsday Engine - Doomsday HQ (retrieved)
  4. Doomsday Version History - Doomsday HQ (retrieved)
  5. IAS Doom Port - Extreme Audio Reality