Building the Great Wall of China - Level 1 ~ 10

I've seen and played bunch of similar games before... I hope this game will be at least challenging. If you've ever played Roads of Rome, this won't be that hard to get used to. Camp should be upgraded first in almost all levels. Be careful in few exceptional levels though... If there are enough food sources,(bush), build sawmill or stone mine first. If not, build farmhouse first. Don't forget upgradeing camps. When a green dragon appears, click shoot utton rapidly to drive it away. (This is not applied to red dragons! They're inevitable, like lightning strikes.) These levels are not that hard to get 3 stars. Upgrade camp, build everything you need then collect resources. I can't find Level 10 in anywhere! Is it a... minigame?