The end of the world is approaching, zombies have swept across the city, and the former city has turned into a hell on earth.
The protagonist is trapped in a hundred-story skyscraper in the city center, with corpses wandering outside, supplies becoming increasingly scarce, and hope for survival slim.
In a desperate situation, the [Doomsday Sign-in System] was successfully activated!
Sign in on any floor of the building to receive generous rewards and a constant supply of supplies!
Sign-in on the first floor: drinking water for the entire vehicle, large amounts of compressed food
Sign-in at the tenth level: self-defense firearms, sufficient ammunition and fuel
Check-in on the 50th floor: seed cultivation, constant-temperature greenhouse equipment
Sign in on the top floor: defensive barriers, reconnaissance drones
Countless survivors were struggling and fighting outside, fighting for a mouthful of food.
Faced with outsiders who came to beg and plunder, he chose to close the door tightly.
Rely on the entire hundred-story building, hoard endless resources, and build an indestructible doomsday safe house!
Author: Excited but destined
