9. A strong personal vision.
A game that in some way demonstrates the values or ideas of an individual or group of people who are collaborating, in a way that indicates some style or aesthetic that is clearly their own. A writer such as Hemingway or Faulkner falls into this category and people can have a lot of fun trying to recreate or satirize their world view.
In a future post, I will go over some examples I found of these (most of these) in recent games.