jMonkeyEngine - A complete 3D game development suite written purely in Java.

jMonkeyEngine is a 3D game engine for adventurous Java developers. It’s open-source, cross-platform, and cutting-edge. 3.2.2 is the latest stable version of the jMonkeyEngine 3 SDK, a complete game development suite. The engine is used by several commercial game studios and computer-science courses.