3D Rad v7.12 which, compared to the previous public version 6.50, adds stable support for NVidia PhysX and important features for almost all object types, becomes free to use for everybody today.
For donors only, version 7.19 of 3D Rad was also released today, which improves the NVidia PhysX based car simulation further and adds stability to the whole package with important bug fixing.
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 7/Vista/XP.
Ideal for CG artists and non-coders, but flexible enough to meet the needs of expert developers as well.