Browse free open source Game Development Frameworks and projects for Mac and Linux below. Use the toggles on the left to filter open source Game Development Frameworks by OS, license, language, programming language, and project status.
Godot is a powerful cross-platform game engine
A simple and easy-to-use library to enjoy videogames programming
Desktop/Android/HTML5/iOS Java game development framework
One framework for creating powerful cross-platform games
A real-time game development platform
Enables Roblox developers to use professional software tools
The game engine for everyone
Real Time Strategy game engine supporting early Westwood classics
Fast and lightweight JavaScript game engine built on WebGL and glTF
Arianne is an engine to develop multiplayer online games like Stendhal
Open Source MMORPG Framework
CTFs as you need them
Open source HTML5 game framework that offers WebGL and Canvas
All-In-One program that combines multiple Fortnite Dev Account tools.
Spring is a free RTS engine developed for Windows, Linux and Mac OS X.
ThinkPHP Framework
Game engine supporting many 3D/2D formats and graphic effects
Unity3D Client And C# Server Framework
Event driven concurrent framework for Python
lua dev plugin for unreal engine 4 or 5
Orx: Portable Game Engine
INSTEAD - Simple Text Adventure Interpreter.
Make games with Lego-like building blocks
Java Settlers