I finally decide replace the original idea of Harry Adventure, about him takes adventure in the futuristic lost land.
The reason to change the theme since the brand new idea could define the challenge better.
The new story tells in the future, human beings abuse the artificial power, they have to stay in the sky for living, the process the resources from the space to supply the human society.
Here is the first WIP update, pretty rough, some blocks need to refine.
The processing unit on the cargo space ship.