DoomToolbox

Table of Contents

1. About

DoomToolbox is a collection of add-ons for Doom-based game engines which support ZScript, like UZDoom.

The goal of DoomToolbox is to increase replayability of compatible games and mods, make gameplay more enjoyable, and to have fun both while playing and developing this project. The development is done under "Move slow and fix things" flag.

DoomToolbox is free and open source software. Add-ons are mostly licensed under GPLv3. Modules are mostly licensed under BSD-3-Clause. See SPDX-License-Identifier tag in each .org file for details. For third-party resources, such as image and sound files, see REUSE.toml files in their directories for licenses.

Acknowledgments

HTML pages for DoomToolbox should be available here. The source code is available on GitHub and Codeberg.

DoomToolbox has a Doomworld topic and a Mastodon page. Some add-ons and modules also have a ZDoom forums thread.

This project doesn't use any AI tools or resources.

1.1. Add-ons

Add-ons can be included and used in your projects. However, this is not recommended, because when add-ons update, players won't be able to use new versions with your project until you update the included add-on inside your project.

1.2. Modules

Modules are intended to be included as a part of other projects. Some DoomToolbox add-ons include them.

2. Gallery

10.5x:

10.5x.png

FinalCustomDoom:

FinalCustomDoom.png

Gearbox:

Gearbox-wheel.png Gearbox-blocks.png

SoundToScreen:

SoundToScreen.png

Typist.pk3:

Typist.pk3.png

3. Help appreciated

  • playtesting: compatibility with games and mods, multiplayer
  • UX suggestions: visuals, wording, usability
  • code reviews: errors, style, readability
  • code contributions: optimizations, features (try to keep project scope)

4. Build

Build is supported on recent versions of GNU/Linux and Microsoft Windows.

To build:

  1. Install Python, version >= 3.13
  2. Install Emacs, version >= 30.1
  3. Install UZDoom, version >= 4.14.3
  4. Install development tools (probably from a venv): pip install -r tools/requirements-dev.txt
  5. In console in project directory, see what can be built with command: scons --help
  6. Build what you need.

To build an add-on PK3, for example FinalCustomDoom, use this command: scons FinalCustomDoom.pk3. It will create FinalCustomDoom-NNNN.pk3 in directory build.

To build a module so you can use it in your project, for example, StringUtils, use this command: scons StringUtils. It will create directory StringUtils in directory build, which will contain StringUtils.zs, in which you can replace NAMESPACE_ with your unique namespace, and then include in your project.

All commands require that PATH environment variable has Emacs, tests also require UZDoom in PATH. All commands put their results in directory build, and may remove files and directories there.

Tests use internally:

5. Development

Used languages:

  • add-ons, modules: ZScript (main), Emacs Lisp (supporting macros)
  • build: Python (main), Emacs Lisp (helper functions)

Python or Emacs Lisp knowledge is not needed to contribute to add-ons and modules.

prek must be installed in Git repository for pre-commit checks.

Optional: Org mode extension for your preferred text editor, if it's not Emacs. Org mode files can be edited as plain text, but an extension should add convenience features such as syntax highlighting.

Documentation:

Created: 2026-04-14 Tue 16:11