The game is a little bit light weight when it comes to features and complexity compared to the games you mentioned. Like Heroes of Might & Magic II however, it is so damn charming with it's visuals and sounds you can easily forgive the fairly shallow and rudimentary gameplay. No, there isn't much of a science to laying out the park and designing the rides but yes it is so rewarding to see the little pixelated children give you thumbs up. Figuring out the formula for a successful park is a path wrought with frustration and confusion but once you start figuring out how to make people happy and the park starts turning a profit it feels quite awesome and rewarding. 6 USD is just the right price for this game. It is entertaining but not something to keep you busy for months.