Theme Park (original version) no freemium model. As expensive as "Game dev Story" No timed constructions (like facebook games and tiny tower) 2D graphics. The same stuff essencially. If Game Dev Story and all the follow ups show that you can success with that "old model" why not duplicate it for a theme park game. I know there are a lot of sims about theme parks however all of them are about doing stuff and checking them during the day, what happen to those games that progress with the amount of play you dedicated, and that didnt slave you to the game.
