Global Cataclysm: Unlimited Upgrade Shelter

[Fei Lu Novel Network A-level contracted novel: Global Cataclysm: Unlimited Upgrade Shelter]Awakening to the shelter system at the beginning, there are still two months left until the global disaster!Meteorite fall, soaring radiation, Ice Age, Terror Rat Disaster, Infinite Typhoon, Extreme Heat, Volcano eruptionFaced with the impending catastrophe, Zhao Chen began to build his own 'shelter'.Rock Refuge → Steel Refuge → Tungsten Steel Refuge → Zhenjin RefugeMachine gun turret → Multi barrel machine gun bunker → Heavy gun bunker → Light edge fortressCold Weapon Manufacturing Platform → Firearms Workbench → Heavy Cannon Manufacturing Room → Mech Manufacturing HallLarge RVs ->Armed RVs ->Heavy Tank Vehicles ->Time and Space Vehicles(Ps: This book is about the flow of post apocalyptic survival, allowing shelters to upgrade infinitely and resist various major disasters!)Feilu Novel Network reminds you that this novel and its characters are purely fictional. If there are any similarities, they are purely coincidental and should not be imitated.