Global Wasteland: Start by Upgrading Your Shelter

Stone ax→sharp iron ax→laser tomahawk that will cost you 3000 lives... Ordinary clothing → Refined armor → Energy armor → Super warrior alloy energy defense suit... Ten square meters of wooden shelter without doors and windows → Fifty square meters of steel armed shelter → Ten thousand square meters of titanium alloy energy field future city... All mankind travels through a doomsday alien planet, and horrific natural disasters randomly strike. 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?