Clones of Cinema 4D

Wanted: Cinema 4D clone2 days on the list, still without a clone

What it must meet

Name Cinema 4D.
Declare to be its clone or replacement.
Open its files (.c4d).
Look and feel like Cinema 4D when in use.

Other 3D & CAD apps

3ds Max AutoCAD Civil 3D Fusion Inventor Maya Revit Rhino SketchUp SolidWorks Substance 3D Painter ZBrush