The Mechanical Empire of the End of the World

After the nuclear war, civilization was wiped out and the world was covered in ice and snow. Li Meng, who died in the nuclear war, unexpectedly inherited the mantle of the ancient interstellar civilization. The revival of the human race on Earth began in the Ice Age... With resources, you can exchange everything, including androids, constructs, imperial spearmen, imperial archers, imperial guards, black cavalry, technology, space battleships...