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[Apocalypse + Rebirth + System + Space Power + Mecha Evolution + Civilization Redemption] Mechanical engineer Lin Chen was betrayed by his love and brother in the tenth year of the apocalypse. In the flames of the self-destruction of the base, he was unexpectedly reborn and returned to the thirty days before the disaster. Activate the [Multi-Dimensional Construction System], the space power on your left hand can accommodate all things, and the technological blueprint on your right hand can unlock interstellar civilization! When extreme heat melts steel, geomagnetic storms paralyze the world, and zombie waves sweep across cities, he has built an indestructible mobile fortress hundreds of meters underground; when genetically mutated creatures dominate the wasteland, and high-dimensional civilizations regard humans as experimental subjects, he drives a star-core mecha that evolves by swallowing crystal cores, tearing apart the void dimension! In this life, I not only want to survive, but also carry the fire of human civilization to the sea of ​​​​stars! From hoarding tens of billions of supplies to building a mecha army, from tearing apart zombie tyrants to overwhelming alien observers, let's see how the reborn mechanics use gears and codes to compose an epic of civilization continuation in the wasteland!