📱 Collaborative List of Open-Source iOS Apps

• UpdatedFeb 20, 2026

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

• UpdatedFeb 13, 2026
• TypeScript

The automation tower defense RTS

• UpdatedFeb 20, 2026
• Java

Desktop/Android/HTML5/iOS Java game development framework

• UpdatedFeb 19, 2026
• Java

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

• UpdatedSep 13, 2025

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

• UpdatedFeb 20, 2026
• JavaScript

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

• UpdatedDec 4, 2025
• HTML

rhythm is just a *click* away!

• UpdatedFeb 20, 2026
• C#

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

• UpdatedFeb 20, 2026
• Scala

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

• UpdatedApr 25, 2025
• Jupyter Notebook

A retro game engine for Python

• UpdatedFeb 20, 2026
• Rust

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.

• UpdatedFeb 17, 2026
• C#

An open source re-implementation of RollerCoaster Tycoon 2 🎢

• UpdatedFeb 20, 2026
• C++

A modern Wine wrapper for macOS built with SwiftUI

• UpdatedMay 11, 2025
• Swift

Clone of the Age of Empires II engine 🚀

• UpdatedJun 14, 2025
• Python

The source code for 2048

• UpdatedOct 24, 2024
• JavaScript

A dead simple 2D game engine for Go

• UpdatedFeb 15, 2026
• Go

Flexible level editor

• UpdatedFeb 20, 2026
• C++

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

• UpdatedFeb 20, 2026
• C++

An open source re-implementation of Diablo 2

• UpdatedOct 21, 2021
• Go