A workaround for GPL software that wants to use the Steamworks SDK.

A fast entity component system (ECS) for C & C++

Descent 3 by Outrage Entertainment

A command-line tool for managing PAK and WAD files from QuakeI/II & Hexen II

legacy sound blaster emulation for DOS

UMAPINFO Specification & Documentation

Official development repository for the successor to Sonic Worlds Delta

RAMP Assembler for Rapid Tessellation

Simple Directmedia Layer

Doom-related tools for Java. Home of DECOHack and lots of other utilities. Build WAD projects (and soon, other kinds) with ease!

Simulates a monitor (vsyncs and timing) so you can test various game loop timings to see how many missed or double frames your timing control method has

Sample code for frame timing control

Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies

Chip's Challenge 2 emulator that runs in a browser

Zrax's fork of tworld2, mostly for Qt5 support and modernization

ACS/ACS95/BCS compiler

The Reconstruction of ZZT

The Eternity Engine

A modern implementation of the classic game SkyRoads. Supports all of the original data-files (art, music, levels), and tries to remain faithful to the original. It is written in TypeScript, and us…

Lose/Lose is a video-game with real-life consequences.

javascript doom map editor

ZDRay baking utility for GZDoom

Bitmap & tilemap generation from a single example with the help of ideas from quantum mechanics

A batch file wrapper for PowerShell scripts.

Vigil, the eternal morally vigilant programming language

Miscellaneous libraries for GZDoom's ZScript scripting language

Powerslave EX is a unofficial recreation of Lobotomy Software’s obscured FPS game, Powerslave (also known as Exhumed in the UK)