Super God: Starting from Cold Fusion

Open the technology system, start with the Nantianmen Project, build more advanced technology one by one, and kill all enemies with the power of our country! No matter you are a demon or a glutton, if you dare to attack, you will die! (It's very slow, most of the time in the early stage was spent on tinkering with technology, and it was not until the Tianhe Battle that the technology was roughly laid out.) (I forgot to say that the psychological pressure in the first few dozen chapters was so great that the writing was really a bit bad. If you have patience, please read it later. It's much better later. Thank you!)...