Desktop Based: 3D Programs
Blender - Versatile 3D Modelling / Video Program
https://www.blender.org/
Blender 2 For Artists - A New Release 23/04/2020 - A Streamlined Version Of The Main Blender Program
https://www.bforartists.de/
Neobarok - 3D Modelling, Sculpting, Painting, Lighting & Animation Program
https://neobarok.com/
Houdini Apprentice - A Limited Version Of The Procedural VFX Production Program
https://www.sidefx.com/products/houdini-apprentice/
Kerkythea - Kerkythea Is A Full Staging Application For Rendering Your Models
& Supports .3ds Or .obj Models & Includes A Free Exporter For SketchUp
http://www.kerkythea.net/cms/
Pixologic's ZBrush Core - A Free Cut Downdown Version Of Their Flagship Modelling / Sculpting Program ZBrush
https://zbrushcore.com/mini/index.php
AutoDesSys formZ Free - 3D Digital Modeling & 3D Printing Program
http://www.formz.com/fzsite1219/products/formz/formz_free.html
Sculptris - Sculpting & Painting Program
https://pixologic.com/sculptris/
DAZ Studio - 3D Character / Animation / Rendering / Environment Focused Development Program
https://www.daz3d.com/
Make Human - Make Human Is A Program That Allows 3D Modellers To Design Humanoid Characters
http://www.makehumancommunity.org/
Dragonbones - Animation / Character Rigging Program
http://dragonbones.com/en/index.html
Dust3D - Free Multi Function Modelling / Authoring Program
https://dust3d.org/
Wings 3D - 3D Polygon Modelling Program
http://www.wings3d.com/
3D Crafter - 3D Polygon Modelling Program
http://amabilis.com/products/
Tree It - A Great 3D Tree Generator Program With Common File Export Options
http://www.evolved-software.com/treeit/treeit
Meshmixer - A Program From Autodesk For Working With Triangle Meshes
http://www.meshmixer.com/
Particle Editor - A Plugin Utilised By The Mapscape Program And The Advanced Lighting System.
http://www.evolved-software.com/
Mapscape V2 - A Level Editor With Light Mapping & Easy Geometry Manipulation Program
http://www.evolved-software.com/mapscape/mapscapeold
Anima 4D Lite - A New Animated 3D People / Crowd Simulation Program With A Free Version Available
https://secure.axyz-design.com/en/shop/anima-lite
Makers Empire 3D Design - Apparently The Worlds Easiest 3D Program To Learn
https://www.makersempire.com/download/
Sweethome 3D - An Architectural Design Program
http://www.sweethome3d.com/
Commercial & Subscription Based Programs
Maxon Cinema 4D
https://www.maxon.net/
Substance Designer
https://www.substance3d.com/
ZBrush 2020
https://pixologic.com/
Houdini
https://www.sidefx.com/
3D Coat
https://3dcoat.com/