Seraf, True to the word WOWEngine was released today. It is still a work in progress but it is the first 3d physics engine out of the gate. It is built with many open source kits that are emerging. It can use any of the 3 major flash 3d engines (pv3d, sandy, away3d) and it is built on APE AS3 2d physics engine. . . ... http://drawlogic.com/2008/01/22/as3-first-open-source-3d-flash-physics-engine-released-wowengine/