Genghis Khan on the NES was the first strategy game I really got into as a teenager. Years later, I taught my 11 year old son and 9 year old daughter to play. Our problem is that the game map is too small, and the population/item/food/gold being capped out at 999 is too restrictive. Is there a way the map can be expanded a bit and these caps increased? I'm a total caveman when it comes to electronics, but my son is pretty computer savvy. Any advice would be greatly appreciated!

EDIT: I should add we have been playing in a browser-based version of the game, don't know if that matters.