SonarSource Static Analyzer for Java Code Quality and Security
Barcode scanning library for Java, Android
Desktop/Android/HTML5/iOS Java game development framework
A J2ME emulator for Android
Engo is an open-source 2D game engine written in Go
One framework for creating powerful cross-platform games
An easy to use 2D HTML5 game engine written in TypeScript
Java/JavaFX/Kotlin Game Library (Engine)
The Tiny JavaScript Game Engine That Can!
Memory Efficient Serialization Library
A layer built on top of the Insight Toolkit (ITK)
Ct.js is a desktop game engine that makes learning programming fun
Free, open source game engine online
Modern, lightweight and efficient 2D level editor
Plugin for IntelliJ IDEA that gives special support for Minecraft mods
Gideros Release version
Pymunk is a easy-to-use pythonic 2d physics library
OpenSoldat is a unique 2D (side-view) multiplayer action game
Godot Kotlin JVM Module
Native Android app for Habitica
Gameboy emulator in Java 8
A pure Go game engine
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Just another ComputerCraft fork
Orx: Portable Game Engine