Desktop/Android/HTML5/iOS Java game development framework
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
Multi-threaded game engine for Android
MultiLingual Interactive Fiction
Open Source Virtual World and MMOG Development Platform
The classic intelligent role playing game
AMOS BASIC reimplementation in Java
android walker touchscreen
The next generation mud is an open-source extensible, programmable mud