The best free alternative to ZBrush is Blender, which is also Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to ZBrush and many of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to ZBrush are Bforartists, Armory 3D, SculptGL and meshmixer.
A comprehensive open-source 3D software suite for modeling, UV unwrapping, texturing, rigging, and animating. It supports renderings, simulations including fluid and cloth dynamics, complex compositing, video editing, and Python scripting, running across all major operating systems.
Bforartists is a complete 3D suite to create 3D content. It offers you the full 3D art pipeline to create game graphics, prerendered movies and stills.
Armory is an open-source 3D game engine with full Blender integration, turning it into a complete game development tool. The result is a unified workflow from start to finish, making you work faster. No more jumping between different applications.
meshmixer is an experimental 3D modeling tool for making 3D mashups without too much hassle.
Clavicula is a free 3D modeling software aimed at artists and users of all levels. It allows you to quickly give shape to your artistic, design, or engineering ideas, to create highly complex objects using a relatively simple toolkit.
MeshMolder is a digital sculpting software that works like a clay, adding and removing parts where desired by controlling the thickness and radius of coverage and thus creating the final form. The software is completely in beta, functional and free (freeware) can be used as a...
Sculpt+ is a digital sculpting and painting app, designed to bring the sculpting experience to your smartphone or tablet.
Free for a limited time!
With Autodesk® 123D™ Sculpt you can sculpt and paint interesting and realistic 3D shapes.
It’s easy to get started. Choose a shape from the library of creatures, humans, vehicles, and more. Then push, pull and paint to make the sculpture your own.
Polybrush is a new 3D editor created specifically for artists. It very useful for 3D concept art, fast modeling and sculpting. The main difference in approach to the creation of 3D models as a drawing. It was created by artist for artists.
Artist3D is an extraordinarily easy-to-use 3D polygon modeling tool. It works completely without forms, pull-down menus, pop-up menus and text input. Only one modeling window covers each operation function. Less than 30 operation elements control the active interaction options.
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it's free , more simple and has many other uses but it may not be as powerful as ZBrush in terms of performance or sculpting