Yea I think we have all thought up of a game like that where you can just do what you feel like. Whenever! It's a great proposal, but there would be so much programming involved. You would need so many different things to be involved in the gameplay that it would get so crazy. It would also probably cost around $300.00. So good luck finding a company will to work and publish a game like that.
well that would we a cool game but the big problem would be that a game like take a lot of processing power like maybe 4 server if the graphics are very bad 10 if the graphics are kind of good and 20 if the graphics are drop dead great