Silo is an affordably priced 3d package with a focus on modeling which allows it to have a free, uncluttered feeling. This sets it apart from larger complex applications. It's maker Nevercenter says it benefits professionals who are coming to Silo to escape slower, more complex software. It also benefits hobbyists and students, who are able to learn everything they need without having to deal with anything they don't need.
Here is a clip made in Silo, the 3d kicks in about half way through...
DEMO VERSION
Silo is available for a 30 day non commercial trial. Download it here.
OFFICIAL INFORMATION
Silo 2 is a focused 3D modeling application with the ability to effortlessly switch between organically sculpting high-polygon models and precisely controlling hard-edged surfaces. It can be used for anything from creating 3D characters for video games and movies to quickly exploring 3D architectural ideas.
Silo is currently being used at top studios worldwide as both a stand-alone design tool and as a versatile element of a multi-software 3D graphics workflow. It is available for both Windows and Mac OS.