The October 2009 release of 3D Rad adds a 'Buoy' object you can use to create realistic boats by simply combining its elements visually.
This rich update also comes with several new features to improve ease of use further for non-coders.
3D Rad is a freeware, user-friendly 3d editor with a straightforward developing workflow and ready-to-use physics simulation. You can use it to create any sort of stand-alone, interactive 3d project for Windows Vista/XP.
Ideal for CG artists and non-coders, but flexible enough to meet the needs of expert developers as well.