Desktop/Android/HTML5/iOS Java game development framework
Gideros Release version
One framework for creating powerful cross-platform games
Game engine supporting many 3D/2D formats and graphic effects
Amateur 3D Game Engine
Vivid3D is an open-source 3D engine with powerful 2D UI.
Java Settlers
Spring is a free RTS engine developed for Windows, Linux and Mac OS X.
Modern 3D engine and IDE written using C# and C++.
8-bit Graphical API for Java
Source code of the chapters of the book 3D Game Development with LWJGL
CSG for jMonkey
Example code for creating a 2D platform game in Java.
3D .NET engine for Windows, Linux, Mac
Open Game Bootstrap
An advanced flexible game engine for Java.
Cross-platform C framework very compact libraries and tools.
Create your own animated characters for games with ease!
Open Source Virtual World and MMOG Development Platform
An extensible development framework for roleplay games.
SDK for Resident Evil Games