Global Cataclysm: Infinitely Upgrade Shelter

The shelter system is awakening at the beginning, there are still two months until the global disaster!

Falling meteorites, soaring radiation, ice ages, horrific rat plagues, unlimited typhoons, extreme high temperatures, volcanic eruptions…

Facing the coming catastrophe, Zhao Chen began to build his own ‘shelter’.

Rock shelter→Steel shelter→Tungsten steel shelter→Vibranium shelter….

Machine gun turret→Multi-barreled machine gun bunker→Heavy artillery bunker→Light prism fortress……

Cold weapon manufacturing bench → Firearms workbench → Heavy artillery manufacturing room → Mecha manufacturing hall……

Large RV→Armed RV→Heavy Tank Vehicle→Super Time Chariot…

(Ps: This book is a post-apocalyptic survival stream, allowing the shelter to be infinitely upgraded to resist various catastrophes!)