Desktop/Android/HTML5/iOS Java game development framework
Arianne is an engine to develop multiplayer online games like Stendhal
A simple cross-platform game engine for creating old-school 2D games
Java Settlers
8-bit Graphical API for Java
Source code of the chapters of the book 3D Game Development with LWJGL
Example code for creating a 2D platform game in Java.
Build Cross-platform Applications
Toolkit for the easy prototyping of hybrid games for Tabletop Devices
Create your own animated characters for games with ease!
Open Source Virtual World and MMOG Development Platform
The classic intelligent role playing game
AMOS BASIC reimplementation in Java
A cross-platform Java 2D graphics library using OpenGL.