Blender - Blender is the open source, cross platform suite of tools for 3D creation.
CityEngine - CityEngine is a 3D modeling software application that uses the method of procedural generation to facilitate urban modeling and design on a massive scale.
ZBrush - ZBrush is a digital sculpting and painting software solution.
Suicidator City Generator - Suicidator City Generator (SCG) is a Blender3D script.
Aartform Curvy 3D - Aartform Curvy 3D is an easy and fast sculpting program for Windows.
3D Cityplanner - Urban and real estate development at your fingertips. With the 3D Cityplanner it’s possible to create, visualize, analyze and share 3d plans online.