We found some inspiration in this “pre-alpha” program simply entitled “Game about vehicles“. (Think of it as Bad Piggies on steroids.) It includes a variety of basic building components, broadly aimed at land, air and sea environments. The physics are good too, otherwise it wouldn’t be much use to us. Other parts: joints, wheels, rockets, wing, props, balloons, gun, lights…
There are bugs, but we’re just happy to find a simulation environment that also includes a gyroscope component with controls that let it operate as a virtual CMG!
If we were able to adjust amount of angular momentum, that’d make it even better… New features are in development and yet to be released, but it’s a project worth following!