Bob's Track Builder is described as 'allows you to create tracks using simple mouse clicks to form the underlying track mesh ready to be imported into popular car racing games and raced on against your friends' and is an app in the Photos & Graphics category. There are more than 10 alternatives to Bob's Track Builder for a variety of platforms, including Windows, Mac, Linux, iPhone and BSD. The best alternative is Blender, which is both free and Open Source. Other great apps like Bob's Track Builder are SketchUp (Freemium), Autodesk Maya (Paid), Autodesk 3ds Max (Paid) and Rhinoceros (Paid).
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...
Rhino can create, edit, analyze, document, render, animate, and translate NURBS* curves, surfaces, and solids, point clouds, and polygon meshes. There are no limits on complexity, degree, or size beyond those of your hardware.
Silo Professional is the main version of Silo, which gives users access to everything Silo has to offer. This includes Silo's core modeling toolset, as well as advanced features for UV editing, displacement painting, re-topologization, and more.
Gmsh is a 3D finite element grid generator with a build-in CAD engine and post-processor. Its design goal is to provide a fast, light and user-friendly meshing tool with parametric input and advanced visualization capabilities.
ZModeler (or Zanoza Modeler) is a 3D modeling application. It is aimed at modelers who model for computer games such as 18 Wheels of Steel, Grand Theft Auto, Need for Speed, Midtown Madness or similar video games.
Dead Deer is a 3D modeler, 3D game maker, and a 3D demo maker designed to create games. The scripting language allows you to code interactions in pseudo-C with the animation and synthesizes your rendering with your shaders.