Global Cataclysm: My Shelter Is Infinitely Upgradeable

A refreshing post-apocalyptic story, an extremely cold storm of minus 70°C sweeps across the world, alien beasts massacre cities, and hell on earth! When Chu Yang woke up, he found that his dilapidated wooden house had become a doomsday island. "Ding! The infinite upgrade system of Doomsday Shelter is activated!" The rotten wooden board instantly transforms into a [Steel Fortress], and the hatchet evolves into an [Anti-Material Sniper Rifle]! Thugs breaking down the door on a rainy night? One shot to the head, live broadcast around the world! When the military helicopter arrived with "protection", Chu Yang activated the [Plasma Cannon] with his backhand, and the car wreckage vaporized on the spot! The whole network exploded: "Is this fucking cheating?!" The extreme cold came and ice covered thousands of miles, and the survivors froze into ice sculptures in the ruins. But Chu Yang was lying in the constant-temperature fortress, simmering hot pot and watching "Bite of the Tongue" while the AI ​​maid handed him iced strawberry juice. "Boss, please take me in! I can offer you a family heirloom, do a hot dance, or be a dog!" As the world knelt down and begged, Chu Yang calmly made an announcement: "Ticket: Give me rare metals in exchange! If you impress me with your performance, I'll give you a thermostat!" And when the sky-based weapon railgun tore apart the sky, the Frost Queen knelt in front of the door, and the dark Chu Yang struck across dimensions... This infinitely upgradeable steel behemoth will eventually overthrow the doomsday and become the only god in the new era!