Wasteland System: from Wasteland Scavenging to Civilization Restart

In 2249 AD, the "Great Annihilation" disaster broke out - a meteorite impact triggered a global volcanic eruption, the greenhouse effect was out of control, and the glaciers melted and then experienced global cooling. More than 70% of the land on the earth's surface became "red and yellow wasteland". The oceans have dried up into salt-alkali tidal flats, the forests have turned into forests of charred dead wood, and cities have collapsed into ruins. The remaining humans have been forced into desperation by radiation, extreme weather, mutated creatures, and lack of resources.