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

Chocolate Doom is a Doom source port that is minimalist and historically accurate.

Compatible client of Ace of Spades 0.75

An FPS/RTS hybrid game powered by the Daemon engine (a combination of ioq3 and XreaL)

🎮 A multiplayer first person shooter game based on Unity Game Engine

Simple C++ FPS Template for Unreal Engine

ET: Legacy is an open source project based on the code of Wolfenstein: Enemy Territory which was released in 2010 under the terms of the GPLv3 license.

Archived repository. For current repo, see: https://github.com/etlegacy/etlegacy

A Python high-performance screen capture library for Windows using Desktop Duplication API

Mirror of https://gitlab.com/xonotic - Xonotic (superproject containing build scripts and tools to download other repositories and assets)

SpatialOS GDK for Unity FPS Starter Project

#Cub3D: This project is a 3D game created from scratch written in C using an old graphic library mini-libx, presented with an old technology raycasting to make the 3D feeling looks pretty good

CF 火线娱乐辅助

Repository for the Open Tournament Project

Official mirror of the online SCI-FI action game that simulates spaceships in 3D. Built from the ground up to support decentralized game-servers and communities with extensive modding support. Will ship with a core feature set of Role-Playing-Game elements..

Team-Capture - A multiplayer FPS game, inspired by games like Quake and TF2. Done in Unity

A libre multiplayer FPS game created in Godot Engine

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

FPS Game built from scratch using C++ and OpenGL.