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
Enables Roblox developers to use professional software tools
Desktop/Android/HTML5/iOS Java game development framework
A real-time game development platform
One framework for creating powerful cross-platform games
The game engine for everyone
Fast and lightweight JavaScript game engine built on WebGL and glTF
Arianne is an engine to develop multiplayer online games like Stendhal
Real Time Strategy game engine supporting early Westwood classics
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.
Open Source MMORPG Framework
Game engine supporting many 3D/2D formats and graphic effects
Open source HTML5 game framework that offers WebGL and Canvas
INSTEAD - Simple Text Adventure Interpreter.
CTFs as you need them
Gideros Release version
ThinkPHP Framework
Make games with Lego-like building blocks
Orx: Portable Game Engine
Cross-platform 2D and 3D game engine