Arianne is an engine to develop multiplayer online games like Stendhal
8-bit Graphical API for Java
Source code of the chapters of the book 3D Game Development with LWJGL
Build Cross-platform Applications
An advanced flexible game engine for Java.
Java decentralized cross-platform network multiplayer game engine
Free strategy browsergame engine.
Educational framework for OpenGLES, OpenCL and OpenAL
Take the chess graphism, and use it with a chess engine.
A multiplatform game engine for interactive fiction experiences
UtiliGame is a light-weight game engine written in Java.
C-Lesh is a game programming language for 2D games.
An extensible development framework for roleplay games.
Java game engine for shoot 'em ups, using Java2D.
A game engine in java for 2D strategy games
AMOS BASIC reimplementation in Java