n³ The unorthodox terminal file manager

Quake GPL Source Release

Lightweight and customizable notification daemon

Box64 - Linux Userspace x86_64 Emulator with a twist, targeted at ARM64 Linux devices

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

Free and Open Source API and drivers for immersive technology.

A Beautiful Gemini Client

Improved Quake III Arena engine

An open-source, instant-replay solution for Linux

Multi-player spaceship bridge simulator game. Captain your starship through adventures with your friends. See https://smcameron.github.io/space-nerds-in-space

Open re-implementation of Medal of Honor: Allied Assault

Handheld RISC-V Mini Game Console with OLED Display

Clean-room reimplementation of Half-Life: Deathmatch and Half-Life (Experimental) in QuakeC.

Quetoo ("Q2") is a free first person shooter based on id Tech2. GPL v2 license.

Clean-room Counter-Strike 1.5 in QuakeC, using Nuclide SDK. Previously known as OpenCS! (2016)

Forsaken game engine

This is the official GitHub mirror for the FTEQW project.

Software Development Kit for id Tech

C++ game engine coded on top of SDL from scratch. There will be dragons and undocumented stuff in here.

A small tool to extract pak files

KTX: a QuakeWorld server modification

A Total-conversion-mod for the DarkPlaces engine all about mecha combat. See website for more info:

RatArena - RatMod - mod for OpenArena

TR-595 Tricorder

Netrek Server

Netrek Client (C and X11)

Improved Elite Force multiplayer client and server based on ioEF

Lilium Arena Classic - Compatible with Quake 3 Arena 1.16n based on ioquake3.