Global Cataclysm: Start Building a Dungeon

[Apocalyptic Vacation + Relaxation + Funny + Versailles] Sun spots erupt, huge meteorites arrive, a catastrophe is coming, and the terrifying scenes of the Ice Age and the extinction of the dinosaurs are about to reappear. Ye Liangren traveled to this world and was about to face the end of the world! Fortunately, he has opened his own shelter system, created his own dungeon, and can upgrade it infinitely! Iron door → alloy door → laser channel... Crossbow arrow → small caliber machine gun → large caliber machine gun → thunder storm machine gun → machine light cannon... Radiation protection suit → exoskeleton armor → mechanical armor → small mecha → giant mecha...