Sculptris!

SketchUp (formerly Google Sketchup) is a 3D modeling computer program for a wide range of drawing applications such as architectural, interior design, civil and mechanical engineering, film, and video game design—and available in a freeware version, SketchUp Make, and a paid version with additional functionality, SketchUp Pro.

Wings 3D is a subdivision modeler inspired by Nendo and Mirai from Izware.

ZBrush Overview

3D-Coat is a commercial digital sculpting program from Pilgway designed to create free-form organic and hard surfaced 3D models from scratch, with tools which enable users to sculpt, add polygonal topology (automatically or manually), create UV maps (automatically or manually), texture the resulting models with natural painting tools, and render static images or animated "turntable" movies.

CINEMA 4D is a commercial, cross-platform, high-end 3-D graphics application, produced by MAXON Computer GmbH of Friedrichsdorf, Germany. Noted for its flexible interface and ease of use, it is capable of procedural and polygonal/subd modelling, animating, lighting, texturing and rendering.

SculptGL is a small sculpting application powered by JavaScript and webGL.

Free for a limited time!

Rhinoceros (Rhino) is a stand-alone, commercial NURBS-based 3-D modeling tool, developed by Robert McNeel & Associates. The software is commonly used for industrial design, architecture, marine design, jewelry design, automotive design, CAD / CAM, rapid prototyping, reverse engineering as well as the multimedia and graphic design industries.

CrackArt is a free open source 3D paint and texturing application that includes Texture Painting, Texture Baking, Procedural Materials and Textures, and much more.

3D Model Maker lets you create virtual 3D models in your computer. You can create anything your imagination can think of. (Not limited to simple cubes or blocks like some apps!) It uses meshes of polygons just like they used in Toy Story.It uses the 3DS file format which is compatible with lots of professional software like Autodesk 3D Studio, Maya, AutoCAD and Blender. This means you can create your models on the move on your tablet or PC and import them later into the 3D package of your choice.Use tools like "extrude", "subdivide", "smooth", "pull" and many more to create your 3D objects. Move the individual vertices around or move select multiple vertices with the box select tool.Paint the faces different colors. Rotate the 3D shapes at any angle or choose from a list of views. »

Model a virtual clay ball by pushing or pulling it with your fingers.

ShapeShop is a new 3D modeling and design tool with a fun, easy-to-learn interface. Sketch-based shape creation and editing tools make it simple to quickly translate your ideas into a 3D shape, and drag-and-drop decal compositing makes texturing simple. Best of all, ShapeShop is free!

DeleD is a 3D modeler and level-editor combined into one. It focuses at game development and is specifically designed to create static objects/worlds. Other areas in which you can put DeleD to good use are, for example, educational services, webdesign, prototyping and image creation.