Blender is the free and open-source 3D creation suite. It supports the entirety of the 3D pipeline—modeling, rigging, animation, simulation, rendering, compositing, video editing, and motion tracking.
MakeHuman is an interactive modelling tool for creating realistic 3D human characters. These models can be exported to several computer graphics and animation platforms including Blender, Unity 3D, Unreal Engine, OpenSim and Second Life.
Wings 3D is a subdivision modeler inspired by Nendo and Mirai from Izware.
It is possible to assign materials, vertex color, UV coordinates and textures, but there will be improvements in those features before Wings goes 1.0.
There is no support in Wings for doing animations.
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.
VRoid Studio is a 3D character creation software developed for you to freely express yourself, even without 3D modeling expertise. The software is easy-to-use. Even first-time users can fully enjoy the software by picking preset items and playing around with the parameters’...
K-3D is free-as-in-freedom 3D modeling and animation software. It features a plugin-oriented procedural engine for all of its content, making K-3D a very versatile and powerful package.
According to the official website k-3d.org :The latest "source code" release is from November 2015. And the latest binary executable release is even older. According to its Sourceforge page ( https://sourceforge.net/projects/k3d/files/K-3D Win32 Binaries/ ), latest release is from june 2010.
Art of Illusion is a free, open source 3D modelling and rendering studio. It is written entirely in Java, and should be usable on any Java Virtual Machine which is compatible with Java 5 or later.