Hungry Hero is an open source Flash game built on Starling Framework.
An extensible development framework for roleplay games.
Open Source Virtual World and MMOG Development Platform
cross-platform 2d game engine
A game engine in java for 2D strategy games
Java game engine for shoot 'em ups, using Java2D.
Cross-platform 2D game engine
AMOS BASIC reimplementation in Java
This game is a 2d arcade game. You can move, jump, kill monster.
A cross-platform Java 2D graphics library using OpenGL.
MOVED: http://github.com/wilkystyle/java2dphysicsengine