Doomsday: My Shelter Was Upgraded to Noah's Ark

Meteorites fall, global volcanoes erupt, polar icebergs melt, sea levels rise rapidly, volcanic ash covers the sky, and the Ice Age comes... Shocking disasters are coming one after another. Is human civilization about to become extinct? Yang Li traveled to this doomsday wasteland world and obtained the civilization fire propagation system. "Upgrade the base wall!" Facing the earthquake, he worked hard to upgrade the earthquake resistance of the shelter. "Upgrade base protection!" If anyone dares to steal resources, then upgrade the protection force. What kind of machine guns and sniper rifles, all at once! While others are still struggling for survival, Yang Li has already lived a life without worries about food and clothing. And there are a lot of long-term workers under his command! As the base has more and more black technologies, its scale is getting bigger and bigger. Gradually it turned into a complete small city! "Upgrade the base engine..." Yang Li faced the 100,000 people in the base and waved boldly, "Start to the stars and the sea!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.