Full featured MUD server with all the trimmings.
scriptable game engine with built-in support for 2D graphics and sound
A 3D game engine in java.
An advanced flexible game engine for Java.
An online multiplayer turn based strategy game and board game engine.
Java decentralized cross-platform network multiplayer game engine
Built to be ease of use, with no programming knowledge, Multi-platform
TR Game Engine allows you to develop your game quickly and easily.
A multiplatform game engine for interactive fiction experiences
Role Playing Game Engine
UtiliGame is a light-weight game engine written in Java.
Little game background framework in java.
A game engine in java for 2D strategy games
Free MMORPG Engine. Develop and host graphical browser-based games.
Gomoku Game: Playing with Computer