Doomsday Is Coming: My Shelter Can Be Infinitely Upgraded

Meteorite impact, The terrifying flames burned everything, and the sky was filled with dust. As soon as Su Hao traveled to this world, he faced a terrifying doomsday. Fortunately, he got the doomsday survival system, which allows him to infinitely upgrade his shelter. Sweeping robot → Intelligent maid → Terminator... Car → Small armored vehicle → Heavy tank → Air and space battleship... Radiation protection suit → exoskeleton armor → mechanical armor → small mecha → giant mecha... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.