Apocalypse: I Can Level Up Everything

Solar flares erupted and the magnetic field was disturbed, resulting in a drastic change in the Earth's environment. Wu Peng found a system that helped him create a unique shelter which can be leveled up without an upper limit. Iron Armor / Steel Armor / Alloy Defense Arrow Tower / Machine Guns / Ammunition Tower / Laser Shooting Armor / Alloy Battlesuit / Mechanical Armor / Mecha