In the seventh year of the global mutation, insect waves besieged the city, glaciers covered 90% of the land, and humans huddled in safe areas to survive. Lin Chen was reborn and returned to the 3 days before the mutation. He awakened the [Fortress Building System] and focused on the abandoned high-speed railway in the suburbs. He transformed it into a steel behemoth "Hope" - an electromagnetic gun on the front of the car, a plant area/weapon depot/medical room in the car, and the solar panel on the roof never runs out, and it can switch between submersible and flight modes!
When the insect swarm breaks out, others are struggling in the ruins. Lin Chen drives the Hope and crashes through the swarm of insects, gathering the survivors: a cold female officer, a mechanical lolita, and a mysterious girl who can communicate with mutant beasts. When encountering a level 3 insect nest, he unlocked new functions by destroying it with electromagnetic cannons; when he was surrounded by warlords, ancient creatures awakened, and other reborns snatched resources, he sneered and counterattacked: "My fortress is both a home and a doomsday harvester!"
After upgrading the fortress all the way to space flight, interdimensional travel, and fighting from the ruins of the earth to the alien battlefield, Lin Chen finally discovered the truth of the doomsday - human beings are actually the "ranch" experiments of higher civilizations!
"Want to treat humans as livestock? Ask me first if I can accept this electromagnetic gun!"
This is a passionate and exciting story about building an invincible fortress, gathering partners, and overthrowing the rule of higher civilizations in the apocalypse. There are new maps, new equipment, and new crises every day. The fun points are intensive and not procrastinating!