Clones of Fusion

Wanted: Fusion clone2 days on the list, still without a clone

What it must meet

Name Fusion.
Declare to be its clone or replacement.
Open its files (.f3d).
Look and feel like Fusion when in use.

From the same maker, already have a clone

AutoCAD, 2 clones

Other 3D & CAD apps

3ds Max AutoCAD Cinema 4D Civil 3D Inventor Maya Revit Rhino SketchUp SolidWorks Substance 3D Painter ZBrush