Though it's fun to use, GameStudio is no toy. And it's not only for computer games. You can use it to produce arbitrary interactive applications, presentations, virtual exhibitions, or 2D applications from card games to drum sequencers. The engine handles 3D as well as 2D objects, and you can easily design any user interface of your imagination.
Game authoring systems are the future of games programming - not only for professionals. Even with no programming knowlegdge at all, following the step-by-step tutorial you'll create your first 3D action game in one afternoon!