Doomsday Fortress: Building the Ultimate Survival Shelter

Lin Feng knows the world ends in seven days—and this time, he's ready. Reborn from the apocalypse with knowledge of the catastrophes to come, he races against time to stockpile supplies and fortify his safehouse. First comes the freeze: three months of -70°C blizzards that turn cities into frozen tombs. Then the inferno: scorching 80°C heat that bakes the earth. When melting glaciers unleash worldwide floods, survivors think they've seen the worst. They're wrong. The true nightmare is only beginning.