Global Wasteland, Starting with Shelter Upgrades

Stone ax, sharp iron ax that will kill you, 3000 laser tomahawk... Ordinary clothes, refined armor, energy armor, super warrior alloy energy defense suit... Ten square meters of wooden shelter with no doors or windows, fifty square meters of steel armed shelter, ten thousand square meters of titanium alloy energy field, future city... All mankind travels through the doomsday alien planet, and horrific natural disasters randomly come. We have to negotiate with intelligent creatures that we have never seen before, fight against ferocious and powerful mutated beasts, and face powerful mysterious people who do not know their enemies or friends... Will the end of the world ruthlessly bury mankind, or will it rekindle mankind's final glory? ... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.