Clones of Civil 3D

Wanted: Civil 3D clone2 days on the list, still without a clone

What it must meet

Name Civil 3D.
Declare to be its clone or replacement.
Open its files (.dwg).
Look and feel like Civil 3D when in use.

From the same maker, already have a clone

AutoCAD, 2 clones

Other 3D & CAD apps

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