A simple cross-platform game engine for creating old-school 2D games
8-bit Graphical API for Java
CSG for jMonkey
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
Little game background framework in java.
An extensible development framework for roleplay games.
DiaT is a Textadventure
AMOS BASIC reimplementation in Java
A cross-platform Java 2D graphics library using OpenGL.