FreeDO - 3DO emulator.

KexLIB is a set of utilities, wrappers, render classes and more for the Kex engine

Original source of the ACS scripts for Hexen, DoomED source map files for Hexen and development tools such as HereticEd used for development of Hexen

Doom 64 port for Sega Dreamcast / KallistiOS

a continuation of the original Doom Builder 64, picking up where Kaiser left off.

Legacy GZDoom fork, now forked under a

Cross Platform Doom64 EX branch

This is a fork version of Doom Builder 64, with updated source code and added new features and support for all Doom 64 engines.

UZDoom is a feature centric port for all Doom engine games, based on GZDoom, adding an advanced renderer and powerful scripting capabilities

SlaveDriver Engine for Sega Saturn GPL Source Code

This is a custom fork of the EX+ engine with news customs contents, news customs options, news customs features, and possibly more in the future.

Fork of D64BSP with new features.

Modern microcode for N64 romhacks. Will make you want to finally ditch HLE.

Makefiles for building the Doom64 Dreamcast port from scratch

BD64-Veteran of Hell (v2.666) gameplay mod

RT64 is an N64 graphics renderer for playing with enhancements in emulators and native ports.

an enhanced port of nuquake for dreamcast

Materialize is a program for converting images to materials for use in video games and whatnot

Source port of FreeDoom to the Nintendo 64

Doom II RPG Reverse Engineering By [GEC]

Doom RPG Reverse Engineering By [GEC]

Tool for Hexen N64

Open source library for N64 development.

MVP.css — Minimalist classless CSS stylesheet for HTML elements

Tool for Doom 64 N64

A community continuation of the OBLIGE Level Maker, originally by Andrew Apted, combined with ObAddon.

A simple general-purpose game engine for the N64

This is fork of Doom 64 RE, aimed at testing and adding new features.

A Launcher for DOOM64 that is actually good

A Launcher for the EX+ source port that rocks