There are a lot of articles about games. Most of these are about particular aspects of a game like rendering or physics. All engines, however, have a binding structure that ties all aspects of the game together. Usually there is a base class (Object, Actor or Entity are common names) that all objects in the game derive from, but very little is written on the subject. Only very recently a couple of talks on game|tech have briefly touched on the subject. Still, choosing a structure to build your game on is very important. The end user might not “see” the difference between a good and a bad structure, but this choice will affect many aspects of the development process. A good structure will reduce risk and increase the efficiency of the team.