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Brad Harding edited this page Nov 19, 2016 · 5 revisions

DOOM Retro is the classic, refined DOOM source port. It represents what I want DOOM to be today, in all its dark, gritty, unapologetically pixelated glory. I’ve strived to implement a set of features and a certain level of attention to detail and restraint while still upholding a deference for that classic, nostalgic DOOM experience we all hold dear.

DOOM Retro is under constant development. Its source code is forked from Chocolate DOOM and includes enhancements from other DOOM source ports, as well as many original ideas.

DOOM Retro is deliberately minimalist by design, and does a few things differently when compared with other source ports. It supports vanilla, limit removing and BOOM-compatible maps. Please note that in order to freely implement certain features, and due to the nature of DOOM demos, DOOM Retro does not support demo recording and playback.

DOOM Retro is singleplayer only, and runs in Windows XP and above. Its C source code is maintained using Github Desktop and compiled using Microsoft Visual Studio Community 2017 RC. Although unsupported, DOOM Retro can also be compiled under Linux and OS X.

The latest version of DOOM Retro may be downloaded here.


  • A simple and convenient built-in WAD launcher.
  • Uses version 2.0.5 of the SDL (Simple DirectMedia Layer) library.
  • A resolution of 640×400 (twice that of the original DOOM), accommodating for any screen size while maintaining the correct 4:3 aspect ratio.
  • A 256-color software renderer, scaled up onto the screen using hardware acceleration with the OpenGL or Direct3D APIs.
  • A 16:10 widescreen mode with a choice of two different heads-up displays.
  • Windowed and fullscreen modes, switchable at any time using ALT + ENTER.
  • A powerful console is available where all additional settings can be changed, keeping the options menu uncluttered and consistent with the original DOOM.
  • The framerate is uncapped.
  • Motion blur can be applied when the player turns around quickly.
  • MIDI, MP3 and Ogg music lumps are supported.
  • There are several alpha, additive and per-pixel translucency effects.
  • More blood is produced when shooting monsters.
  • All blood spilt leaves splats on the floor.
  • Cacodemons have blue blood, Hell Knights and Barons of Hell have green blood, Spectres have “fuzzy” blood, and Lost Souls have no blood.
  • Dynamic shadows are cast by monsters.
  • Liquid sectors bob up and down.
  • Objects are partially submerged, and bob up and down, and the player’s view lowered, when in liquid.
  • Brightmaps have been applied to certain wall textures.
  • Corpses are randomly mirrored.
  • Corpses react to splash damage from rockets and barrel explosions, and smear blood on the ground as they slide about.
  • The screen shakes when the player is injured.
  • There are 10 darker gamma correction levels to accommodate for today’s brighter LCD screens (with gamma correction level 0.75 set as the default).
  • The limits of the original DOOM are either raised or removed completely.
  • There is support for DeHackEd files and lumps, including those with BOOM extensions.
  • There is specific support for the BFG Editions of DOOM and DOOM II, which includes Nerve Software’s No Rest For The Living expansion.
  • There is also specific support for:
  • Alun “Viggles” Bestor’s Cacoward 2015 winner Breach is bundled.
  • There are various rendering improvements, which include:
    • The removal of many “firelines” and “slime trails”,
    • The removal of “sparkles” along the bottom edge of doors,
    • Better drawn floors and ceilings,
    • Changes in height are drawn more accurately,
    • Smoother lighting,
    • A better and more consistent “fuzz” effect for Spectres and the partial invisibility power-up.
  • A majority of the known “bugs” from the original DOOM have been fixed.
  • Keyboard support is improved:
    • The W / A / S / D keys are set by default,
    • The CAPSLOCK key can be used to “always run”,
    • The WINDOWS key is disabled.
  • Support has been added for DirectInput and XInput gamepads:
    • XInput gamepads vibrate when the player is injured or fires a weapon,
    • Gamepads can be connected in the middle of a game.
  • There is improved mouse support:
    • A higher mouse sensitivity is allowed,
    • Vertical mouse movement is disabled by default,
    • The mouse wheel can be used to change weapons.
  • Over 750 level-specific fixes for the original DOOM IWADs have been implemented, which include:
    • Missing textures that cause floors and ceilings to “bleed”,
    • Incorrect textures,
    • Misaligned textures,
    • Monsters that are stuck in walls or each other.
  • Extensive player statistics.
  • Significant changes have been made to the automap:
    • The automap updates dynamically as the player moves around the map,
    • The automap may be shown on an external display,
    • A rotate mode can be toggled on/off using the R key,
    • Thing triangles are scaled based on the sizes of the things they represent,
    • Solid walls are twice as wide and are drawn over other walls,
    • Secrets are drawn correctly as they are discovered by the player,
    • The path the player takes around a map can be displayed.
  • Several improvements have been made to the menu and message systems.
  • Screenshots have been enhanced:
    • Screenshots are saved as PNGs instead of the now obsolete PCX format,
    • Screenshots are the same size as the screen,
    • There is no limit to the number of screenshots that can be taken.
  • Several improvements have been made to monster animations.