It is possible to try to create a shooter with strategy elements — a mixture of FPS and RTS. Although there have been such attempts and the results are quite interesting, but it has not been developed. Perhaps it is very difficult to balance.
Also, it is possible to create an emulator of life and go live in it. It looks like someone did something similar once. Except he didn't want to live in it. Or do you mean by "make absolutely everything," but within the extremely limited primitive technology of Earth's modern humans?