Meteor Coming: Trillion Group Hollowed Mountain Bunker

Deep in space. A rogue asteroid — over 20 kilometers in diameter — breaks free from the asteroid belt. It's screaming toward Blue Star at 30 kilometers per second. Three of Dragon Country's supercomputers run parallel calculations. 99.99% certainty. Extinction-level event. Five months and fifteen days to impact. Twice the size of the dinosaur-killer. Five times the impact force. Thousands of nuclear warheads — all useless. But that's just the opening act. After the meteor: earthquakes, volcanoes, tsunamis, global firestorms, radiation clouds, oxygen depletion, and an ice age — rolling in like clockwork. Blue Star becomes hell on earth. And then — AI apocalypse. Bug swarms. Alien fleets. Wave after wave after wave. Su Yun. The sole controller of Nebula Technology Group. A transmigrator whose parents ditched him early. He started a small company on a whim — and somehow grew it into a trillion-dollar empire. No system. No rebirth. No cheat codes. But he's got a crew of "genius lunatics" under him: the gaming division pulls in 18 billion a month; the R&D department burns cash like water; the heavy machinery and chip supply chains are fully integrated… Five months before doomsday, Su Yun gets the intel. He stops coasting. He mobilizes every cent, every tech, every human resource the group has: Dig underground shelters — building corporation-grade bunkers Hoard supplies — for radiation and oxygen depletion Develop mechs and machines — to fight radiation monsters and bug swarms Research gene evolution — to push human limits Build a starship — for the final interstellar escape No harem. No "many kids, many blessings." No luxury cars, no planes, no tanks, no RVs. Just: an underground city built on a trillion-dollar budget. A steel mech corps. A squad of gene-evolved soldiers. And one ship — built to sail to the stars. From the Public Shelter Era. To the Mech Era. To the Gene Evolution Era. And finally — the Interstellar Escape Era. Su Yun isn't a lone wolf hero. He's the core decision-maker of an entire conglomerate. Under doomsday, it's not about personal combat power. It's about technology, industry, and organization. Rating: 8.7. Complete. 312 chapters — 770,000 words. From meteor impact to alien invasion. From underground bunkers to interstellar flight. A hardcore ensemble power fantasy that covers the entire apocalypse chain.