I recommend the book "Doomsday: Becoming a Red Alert Commander at the Beginning" to you. The protagonist, Qin Nian, woke up the Red Alert System ten minutes before the doomsday arrived. With the Red Alert System, he conquered the chaotic world and stood tall in the doomsday. He developed his own base, built his own Empire State Building, and protected a tribe. This novel also has elements such as primitive people and insects. It should meet your needs. I hope you like this fairy's recommendation. Muah ~😗