VTSystem is a 3D (Action) Adventure engine where each character can go about his(her) own affairs independent of your actions, where you can experience 'real world' environments! Uses the Nebula Device. For more information, take a look at the homepage
CarDriver is an educational Virtual Environment for safer driving. It is a game written in Python and Panda3D where you are the driver of a car and have to care about the traffic rules. It uses the Open Dynamics Engine (ODE) for the physical simulation.