Okay, I'm back after a week. Holy heck, the last are so difficult if being played in hard difficulty, I really feel that I've to be lucky just to advance to the next stage of buildings in that area. Took me hours and I finally gave up and decided to go with easy mode. Well, at least I finally completed the game. Overall it was a very good game. A little expansion on the mission and things you can build would be a great addition. Also adding a more detailed explanation of the game mechanics would help new player a lot on how to play this game. That's all, I rate it 5/5.