Game Open Source Projects

:iphone: Collaborative List of Open-Source iOS Apps

The HTML5 Creation Engine: Create beautiful digital content with the fastest, most flexible 2D WebGL renderer.

The automation tower defense RTS

Experimental Nintendo Switch Emulator written in C#

Desktop/Android/HTML5/iOS Java game development framework

🎮 Open-source, cross-platform 2D/3D/multiplayer game engine designed for everyone.

Archived — A list of games, add-ons, maps, etc. hosted on GitHub. Any genre. Any platform. Any engine.

Python programs, usually short, of considerable difficulty, to perfect particular skills.

CSS is powerful, you can do a lot of things without JS.

List of projects that provide terminal user interfaces

🎮 A step-by-step guide to implementing SSAO, depth of field, lighting, normal mapping, and more for your 3D game.

Cocos2d-x is a suite of open-source, cross-platform, game-development tools utilized by millions of developers across the globe. Its core has evolved to serve as the foundation for Cocos Creator 1.x & 2.x.

rhythm is just a *click* away!

A Study Path for Game Programmer

♞ lichess.org: the forever free, adless and open source chess server ♞

💿 Free software that works great, and also happens to be open-source Python.

🕹 Retro video game emulation for macOS

A retro game engine for Python

Cross-platform, graphics API agnostic, "Bring Your Own Engine/Framework" style rendering library.

Open Source real-time strategy game engine for early Westwood games such as Command & Conquer: Red Alert written in C# using SDL and OpenGL. Runs on Windows, Linux, *BSD and Mac OS X.

:video_game: :pencil: A list of Game Development resources to make magic happen.

Powerful web graphics runtime built on WebGL, WebGPU, WebXR and glTF

Mini projects built with HTML5, CSS & JavaScript. No frameworks or libraries

An open source re-implementation of RollerCoaster Tycoon 2 🎢

A modern Wine wrapper for macOS built with SwiftUI

Clone of the Age of Empires II engine 🚀

A lightweight online game framework

A habit tracker app which treats your goals like a Role Playing Game.

Video game library manager with support for wide range of 3rd party libraries and game emulation support, providing one unified interface for your games.

A dead simple 2D game engine for Go

Minetest is an open source voxel game engine with easy modding and game creation

Hazel Engine

Scalable open-source game backend server: multiplayer, matchmaking, leaderboards, chat, and social features for games.

Flexible level editor

Cataclysm - Dark Days Ahead. A turn-based survival game set in a post-apocalyptic world.

State Management and Multiplayer Networking for Turn-Based Games

An open source re-implementation of Diablo 2

A simple Minecraft clone written in C using modern OpenGL (shaders).

Open-source Android/Desktop remake of Civ V

A Flutter based game engine.

Fast PlayStation 1 emulator for x86-64/AArch32/AArch64/RV64

A curated list of free/libre plugins, scripts and add-ons for Godot

🎮 Chinese DOS games collections.

Lutris desktop client

Unity3D Client And C# Server Framework

Diablo build for modern operating systems

UI Automation Framework for Games and Apps

A quick and easy to use drag and drop retro game creator for your favourite handheld video game system

Pterodactyl® is a free, open-source game server management panel built with PHP, React, and Go. Designed with security in mind, Pterodactyl runs all game servers in isolated Docker containers while exposing a beautiful and intuitive UI to end users.

Diablo devolved - magic behind the 1996 computer game

Complete Open Source and Modular solution for MMO

A Curated List of Game Network Programming Resources

Game for learning how to code.

StarCraft II Learning Environment

Reduce the space taken up by games and programs on disk by using native Windows APIs

Transportation planning and traffic simulation software for creating cities friendlier to walking, biking, and public transit

A work-in-progress, open-source, multi-player city simulation game.

OpenTTD is an open source simulation game based upon Transport Tycoon Deluxe

Data-oriented and data-driven game engine written in Rust

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