This is a successor of prboom+ with extra tooling for demo recording and playback, with a focus on speedrunning and quality of life.

QuakeSpasm -- A modern, cross-platform Quake game engine based on FitzQuake.

NZ:P Team's fork of the FTEQW project.

Esoterica Engine

The public CGAL repository, see the README below

A Super Mario 64 decompilation, brought to you by a bunch of clever folks.

DOOM Open Source Release

BLOPS Open Source Reimplementation

Call of Duty: Black Ops 2 Zombies - Reimagined

awesome game security [Welcome to PR]

Quantum Computing API for Java

The source release of the Quake tools and utilities

Quake III Arena GPL Source Release

Quake 2 GPL Source Release

Quake GPL Source Release

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

Arma: Cold War Assault Remastered Source Code Repository.

a multiplayer survival game of parenting and civilization building

A collection of tools and algorithms for developing traditional roguelikes. Such as field-of-view, pathfinding, and a tile-based terminal emulator.

stb single-file public domain libraries for C/C++

The compiler is available for download. Get it!

Box2D is a 2D physics engine for games

Box3D is a 3D physics engine for games

Repository for summer research im doing

A simple and easy-to-use library to enjoy videogames programming