Java game engine for shoot 'em ups, using Java2D.
A game engine in java for 2D strategy games
Framework for a graphical point and click adventure game in Java
Java Game Engine 2D
SDL game engine made for Ludum Dare 24
RPG Games without coding!
Demonstrating the features of jMonkeyEngine 3.
Pig2D is a game engine for Java that uses a sprite-based interface.
Java OpenGL game engine demo.
Cross-platform 2D game engine
A cross platform 3d c++ game engine
Reference implementation for the Doom game engine.
Free MMORPG Engine. Develop and host graphical browser-based games.
Gomoku Game: Playing with Computer