Crispy Doom

About

Doom is id Software's 1993 first-person shooter; per Crispy Doom's own credits section, its copyright is held by id Software, Inc. (1993-1996). Crispy Doom is a limit-removing, enhanced-resolution Doom source port forked from Chocolate Doom, aiming to stay demo-, savegame-, netplay-, and config-compatible with vanilla Doom while adding a higher 640x400 internal resolution (with the original 320x200 still selectable), widescreen support up to 24:9, uncapped framerate with interpolation, and removal of most of the engine's static limits. It runs on Linux, Windows, and macOS, is actively maintained, and supports the Doom Classic WADs from the BFG Edition as well as John Romero's Sigil episode for Ultimate Doom.

How it differs from the original

Crispy Doom deliberately does not support Boom or ZDoom map features (no generalized linedef/sector types, DECORATE, or MAPINFO), though it does support several specific advanced lumps such as ANIMATED, SWITCHES, MBF sky transfers, SMMU swirling flats, and MUSINFO. Most of its enhancements over vanilla Doom — jumping, free look, a crosshair, translucency, a minimal HUD — are optional and off by default, to preserve demo and netplay compatibility with vanilla Doom and Chocolate Doom.

Getting started

Prebuilt binaries are available for Windows, via MacPorts or Homebrew on macOS, or via apt on Ubuntu/Debian. Players need Doom's IWAD data separately, either from an owned copy, the free Doom shareware episode, or the free Freedoom project's IWADs. Building from source requires cloning the GitHub repository, with platform-specific build guides included in the project's wiki.

History

Crispy Doom was created by Fabian Greffrath as a fork of Chocolate Doom, motivated by Brad Harding's Doom Retro (though no code was taken from it); its renderer work drew on studying Lee Killough's MBF source port via Team Eternity's WinMBF. Its name refers to its "crisp" higher-resolution rendering, with what the README calls "a slight reference to its origin."

Media

Additional notes

Mod compatibility

Its DEHACKED/BEX support lets it run certain fan-made "enhancer" mods built for MBF-derived ports, such as Black Ops' smooth weapon animations and Smooth Doom's monster animations.