SonarSource Static Analyzer for Java Code Quality and Security
Open QR Code is an open-source, cross-platform app
Desktop/Android/HTML5/iOS Java game development framework
Plugin for IntelliJ IDEA that gives special support for Minecraft mods
One framework for creating powerful cross-platform games
Java/JavaFX/Kotlin Game Library (Engine)
Free, open source game engine online
Modern, lightweight and efficient 2D level editor
Memory Efficient Serialization Library
Pymunk is a easy-to-use pythonic 2d physics library
An easy to use 2D HTML5 game engine written in TypeScript
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Gideros Release version
Just another ComputerCraft fork
OpenSoldat is a unique 2D (side-view) multiplayer action game
Native Android app for Habitica
A pure Go game engine
Ct.js is a desktop game engine that makes learning programming fun
The Tiny JavaScript Game Engine That Can!
A layer built on top of the Insight Toolkit (ITK)
Gameboy emulator in Java 8
A promising chess program
Game engine supporting many 3D/2D formats and graphic effects
Europa Universalis 4 save game editor