Doomsday Builder I Have an Infinite Synthesis Platform

Global catastrophe, the end of the world begins. While others were struggling to survive in the rubble, Chen Mo was building large-scale construction projects with bricks and steel bars. A brick = a reinforced wall A steel pipe = a trap Special steel = steel fortress He built the fortress that others could not build; he defended the stronghold that others could not defend. S-class mutant summons beasts to siege the city? He raised his gun and fought. ——The only master architect in the apocalypse, the architect of the apocalypse, Chen Mo.