This is a great game. But it takes way too long to move to another age. Ive been playing this game for about 2 months, but Ive only made it to iron age. And it takes way too many supplies to research. And the buildings are too expensive. So I would rate this a full 5 star rating if you would shorten the researches and shorten the cost of the buildings and shorten the cost of the supplies for the research.