Full featured MUD server with all the trimmings.
A game engine for console based text games
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
TurboSphere is an easy to learn and powerful JS based game engine.
Free Android 2D OpenGL Game Engine
A multiplatform game engine for interactive fiction experiences
Role Playing Game Engine
Little game background framework in java.
UtiliGame is a light-weight game engine written 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