LUX - Source Shader Project

A collection of games that have been uncopylocked.

libmodplug GitHub repository

D3ModdingKit swiss army kit for modding Doom 3

MPU-401 MIDI playback support for the original open source release of Wolfenstein 3D.

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

An attempt to port Half-Life 2 to the cstrike15_src leak

Doom 3 BFG Edition source port with updated DX12 / Vulkan renderer and modern game engine features

High-performance QuakeSpasm fork

A port of the Quake III strafe jumping mechanics to Unity

The ioquake3 community effort to continue supporting/developing id's Quake III Arena

The 2013 edition of the Source SDK modified for Entropy : Zero.

Software Automatic Mouth - Tiny Speech Synthesizer

RenderMan for Blender render addon

Super Mario 64 in Tomb Raider

People Playground Map Creator (reworked for 1.24+ versions)

Lambda Fortress: HL2 cooperative mod with TF2 classes.

Mario 64 as a library for use in external game engines

A recreation of Portal 2 on the Alien Swarm branch of Source 1.

Notepad++ plugin for GLua scripting capabilities

A port of https://www.github.com/n64decomp/sm64 for modern devices.

Repository for the Source engine modification G String

Engine originally used on Mind Games mod

SilverSrc - GoldSrc engine with Source engine abilities.

This is Mapbase's public GitHub repo. It contains all of the code, but not the assets.