As natural disasters strike, the entire population is transported to a wasteland world, facing the challenge of survival! From terrifying acid rain and devastating floods to city-burning infernos, global glaciers, and super radiation—no one is spared! To survive, humanity must build shelters and endure wave after wave of natural disasters. Luckily, Su Mo awakens a doomsday survival system! His shelter can be infinitely upgraded! From wooden doors to iron doors, alloy gates, wooden spears to electromagnetic spears, diesel generators to bio-generators and thermal generators—while others struggle to prepare for the next disaster, Su Mo is already fully equipped and dominating the wasteland. "We're still using oil lamps, while he's got refrigerators!" "I heard his shelter walls are made of...