The World Is Frozen: I Am a Charterer in the Apocalypse

Overnight, the global temperature dropped by 100 degrees, and the Ice Age came without warning. Lin Yang woke up from his sleep and found that outside the window was an extremely cold hell of minus 90 degrees. The power was paralyzed, the Internet was interrupted, and the entire city fell into deathly silence in the blizzard. And he looked down at his phone - the shelter-building game he stayed up late yesterday to play was now overlapping with reality. Bite! The doomsday fortress system was successfully activated] Your underground shelter has been materialized [Current level: Lv1, capacity: 10 people] While others were fighting for a piece of compressed biscuit in the ice and snow, Lin Yang sat in the shelter with a constant temperature of 25 degrees, sipping hot pot and watching the images of all living beings struggling to survive in the apocalypse on the surveillance screen. "Mr. Lin, I am a mechanical engineer and can repair all equipment. Please give me a spot!" "Brother Lin, I brought three tons of food and medicine, and only need two beds!" "Boss, we are a retired special forces team, good at security and exploration, please join your shelter!" As the system continued to be upgraded, the simple shelter on the underground level gradually expanded into a hundred-story underground city: automated farms, medical centers, military factories, scientific research laboratories... And even rail transit connecting other cities was built. But Lin Yang gradually discovered that this global ice freeze was not a natural disaster. In the depths of extreme cold, mutated monsters are awakening; The competition for resources among human survivors evolved into a brutal war; And the mysterious signal coming from the north seems to point to the truth of this doomsday... While other shelters were killing each other over a box of cans, Lin Yang looked at his own shelter and made a decision...