Atlantia.tv is described as 'imation software which allows untrained users to quickly create 3D animated movies' and is an website in the Photos & Graphics category. There are more than 10 alternatives to Atlantia.tv, not only websites but also apps for a variety of platforms, including Windows, Mac, Linux, Android and iPhone. The best alternative is Blender, which is both free and Open Source. Other great sites and apps similar to Atlantia.tv are MakeHuman (Free, Open Source), Autodesk Maya (Paid), Autodesk 3ds Max (Paid) and Cinema 4D (Paid).
3DSimED is a Windows DirectX application allowing the creation and visualization of models from many racing sim formats. Models can be exported to Assetto Corsa, Automobilista, rFactor 2 (and 1), GTR2, Race 07, GTL, N2003 and many other games.