After you get the 16 monuments the game ends.
I personally adore this game as it is unique. If you like strategy games like settlers or Age of empires you'll like this game.
But if your unique and like the look of the game youll love this game. Its also very fun flying with Jashin especially to make the people work. The only other problem is that when your huge your feet can crush a monument which you need to complete the game.