Doomsday Dangerous Building

The world has mutated, and all cities have merged into an infinitely tall tower reaching the sky. People are trapped on their own floors, infinitely high, with random floor environments, resources and dangers coexisting, and the corridors are filled with terrifying aberrations. The giant tower "Floating City": the doomsday cage of global integration, The beginning was unlucky, as he was transported to an empty "prison" floor with even the windows sealed. I don't know how time has passed... Full of despair...