A complete 3-D game development suite written in Java
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
An easy to use 2D HTML5 game engine written in TypeScript
Magic Another Game Engine
Full featured MUD server with all the trimmings.
An advanced flexible game engine for Java.
An online multiplayer turn based strategy game and board game engine.
2D physics engine for games
Visual Novel engine, editor and game development.
A multiplatform game engine for interactive fiction experiences
Free Android 2D OpenGL Game Engine
Role Playing Game Engine
Java Client + JS/Canvas Server-Side System, with maintained Objects
Java game engine for shoot 'em ups, using Java2D.
A game engine in java for 2D strategy games
Demonstrating the features of jMonkeyEngine 3.