1.- Sculptris.

Sculptris is free professional 3d modelling software developed by Pixologic, a company of 3D modeling experts.

You can use it to make your own version of a fantasy character, such as a troll or a rank or human model.

If you are not an expert in polygons and geometry do not worry because in Sculptris you can find ready-made models to use as a starting point for your work.

2. SketchUp Make.

One of the most popular 3d modelling software is SketchUp Make, a complete system for making graphic designs on a computer.

From the official site you can download a huge amount of content made content, which you can use as a basis for more advanced design.

3. DraftSight.

DraftSight is a free 2d CAD drawing software used in professional and school environments thanks to its ability to save files in native DWG format.

This means that projects made with DraftSight can also be used in AutoCAD.

It comes with a good set of features that allow you to make professional-grade projects in no time.

4. FreeCAD.

This software is not only a free CAD but it is 100% OpenSource and the community that develops and supports it is made up of engineers and advanced users but also of designers and designers who freely release their 3d models.

Thanks to the open source license, FreeCAD is so advanced that it is considered on a par with other CAD programs thanks to its ability to create real 3D solids, support for networks, 2D drawing, and many other features.

5.- OpenSCAD.

For those who want to work on specs rather than direct modelling, OpenSCAD is the ideal 3D modelling platform.

It does not have interactive modelling, but bases the generation of objects on the specifications defined in the scripts.

So if you are an engineer and want to build parts of a machine rather than create an animated character,  OpenSCAD is the free CAD software for you.