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Revision as of 08:30, 7 October 2022 by Dashodanger (talk | contribs) (Added note about Haiku OS support and CLI-only builds)

Obsidian title gfx big.png
Initial Release March 2021
License GPL
Repository GitHub
Status Active

OBSIDIAN is a procedural map generator developed as a community effort.[1] It is a fork of the final version of OBLIGE that has two prominent differences: a new GUI for changing the tool's many settings and full incorporation of the former ObAddon project, which provided a large addition of visual assets and Lua code.

First released in March 2021, OBSIDIAN currently has two versions: a stable beta and a rolling preview build of the next beta. The project builds successfully on Linux, BSD, Haiku and Windows platforms; pre-compiled Windows releases are provided on the team's Github repository.


Notable differences from OBLIGE include:

  • Customizable GUI with more granularity for important settings like map size and monster density
  • More prefabs[2] and shape grammars[3]
  • Vanilla Doom support, via the bundled SLUMP generator[4]
  • Unified 64-bit random number generation for both OBSIDIAN and SLUMP using fastPRNG[5]
  • Ability to use arbitrary-length strings as RNG seeds
  • UDMF output, with the ability to convert existing binary-formatted prefabs at runtime
  • ZDBSP as the internal node builder, providing compressed, extended, and UDMF-compatible nodes for engines that support them
  • Optional PK3/ZIP output
  • Ability to save an animated GIF of the map-building process
  • "Surprise Me" total randomization of settings
  • Compile-time option to create CLI-only builds, for systems without a graphical environment or that do not support Obsidian's FLTK GUI toolkit

External links


  1. List of contributors
  2. Prefabs info
  3. Shape Grammar info
  4. Vanilla support info
  5. fastPRNG info