Mecha World: Iron Armored Prairie

In the early years of the Tianyuan Dynasty, the thousand-year mecha civilization collapsed. Tianshu's energy core is exhausted, and 90% of the energy is firmly monopolized by the royal family, princes, and clans. All iron-level mechas that the people at the bottom rely on for survival cannot be activated, and they can only survive in the gap between the wasteland and the radiation zone. When the core of Tianshu is completely exhausted, when alien civilization comes, under the iron armor, is it the fate of sinking or the hope of rebirth? Will this mecha storm sweeping Tianyuan Planet finally use the people's hearts as a torch to burn away the decay of the old world and illuminate the journey of civilization, or will it take another path?