The End of the World: I built the Supreme Shelter one year in advance

The wasteland era is coming. Fortunately, Xu Zhengyang got the doomsday survival system one year in advance, and built a supreme shelter from scratch in his basement!Resident Evil!Radiation wasteland!Ice Age!...No matter what kind of natural disasters and changes occur in the outside world.Xu Zhengyang's shelter always maintains a constant temperature, and it is like spring all year round;The starch manufacturing factory always uses carbon dioxide to make starch;The three-dimensional farm always has endless fresh fruits and vegetables;The AI ​​automated workshop never stops, producing engineering robots, power armor, and swarm drones 24 hours a day...Starting from scratch, build a supreme shelter that can withstand any natural disasters and man-made disasters;Then upgrade step by step, and finally build the shelter into a planetary fortress that can sail in the sea of ​​stars, rushing towards the endless galaxy![Tags: no heroine, lone wolf, doomsday, shelter, upgrade]