Write a Treatment: Take the description you wrote in Exercise 6.7 and expand it into a three- to five-page treatment for your game idea. A treatment does not go into great detail about every aspect or level of the game; however, it will address these top-level questions about the idea.
Who is the game for?
What will make it appealing to that market?
What is the formal structure?
The dramatic structure?
Remember that this is just a draft. When you go on to the prototyping stage, you will address these questions again in more detail.