A portable, enhanced source port of Doom, Heretic and Hexen.

AI system to simulate combat behaviors in a FPS game using Behavior Trees (UE4)

Sauerbraten for the web in a single Docker image.

Repository for the Open Tournament Project

CatacombGL is a source port with OpenGL graphics for Catacomb 3D (1991), The Catacomb Abyss (1992), The Catacomb Armageddon (1992) and The Catacomb Apocalypse (1993).

AssaultCube Reloaded (first-person-shooter game)

Port of the original 1996 game from Ambrosia Software.

Open source game engine version developed by Croteam for Serious Sam Classic (Windows, Linux, FreeBSD, OpenBSD, NetBSD, macOS, Raspberry Pi OS). Based on https://github.com/Croteam-official/Serious-Engine and linux port https://github.com/icculus/Serious-Engine

Open source game engine version developed by Croteam for Serious Sam Classic with Vulkan support (Windows, Linux, FreeBSD, OpenBSD, macOS, Raspberry Pi OS). Based on https://github.com/sultim-t/Serious-Engine-Vk and linux port https://github.com/icculus/Serious-Engine

First person shooter with Unity terrain and AI pathfinding (http://gdev.tv/cudgithub)

Official Smokin' Guns team engine repository, master branch was directly imported from SourceForge Subversion repository, pull requests will be reviewed and integrated in future Smokin' Guns releases.

A simple FPS game with BabylonJS engine following Clean Code principles

Classic Arena First-Person-Shooter Mechanics for Unreal Engine 4.

Main repository for Valhalla, a first-person shooter game project inspired by old school and modern titles.

Source port of Doom, Heretic, Hexen and Strife developed in Delphi

KTX: a QuakeWorld server modification

A source-like movement controller for Godot

reimplementation of the 1994 FPS Nitemare 3D

nQuake (QuakeWorld) server for Linux

Source port of the game Doom developed in FPC/Lazarus