Gamestudio is the world's easiest authoring system for 2D and 3D computer applications. It combines the lite-C script language with a 2D and 3D rendering engine, a physics engine, level, terrain and model editors, a template system for creating computer games without programming, and huge libraries of 3D objects, artwork and ready-assembled games. A detailed description can be found at http://www.3dgamestudio.com
Gamestudio is available in the Extra, Commercial and Pro Edition. The Extra Edition is the basic development system. The Commercial Edition adds network and shader features. The Pro Edition includes a file packer/encrypter and 12 months email support. The differences between the editions are listed at http://www.3dgamestudio.com/order8.php
The software contains Gamestudio/A8 plus a free upgrade to the upcoming Gamestudio/A8.