Apocalypse: I Personally Built a Level Nine Civilization

[Manufacturing maniac + System + multiple heroines + base] Less than an hour into the apocalypse, Song Wen is killed by someone and becomes the shortest-lived protagonist in history. Given a second life, he kills his enemy with his own hands and activates the Divine Craftsman System. Leveling up unlocks the technology of advanced civilizations. Cybernetic limbs, electromagnetic blades, antimatter cannons, smart battle suits, hover cars, implants, robotic battle pets, space bases, interstellar ships, space markets... He can build it all! While others in the apocalypse have no food, power, or weapons and can barely keep themselves alive, Song Wen thrives and becomes the leader of all humanity. Scientists beg on their knees: “Teacher, teach me your technology.” A military commander fawns: “Bro, sell me some weapons.” A goddess throws herself at him: “Handsome, take me in.” All the goddesses in the world insist on marrying me. What can I do?