Always in free ;) (I did n't know Goxel ...super !

Seems is missing a big one : SketchUp Make for the more easy and some powerful 3D existing (poly) From a simple box to Mars Station!
and last "Animator" plugin for SketchUp by Fredo is now some mature! A French guy ;) (don't know if final version will be free)
https://www.youtube.com/user/Fredosix

TopMop for hallucinated 3D Geometry (poly)
Sculptris for the easy organic 3D (poly)

and Verve for pleasure of painting 2D!

So here : SketchUp + Verve! I don't know more fun speed and easy! :)


So Goxel + SketchUp :)



Can be cool : with Goxel you can code your own generation of objects!