In just a week, Planet Austere was already a changed spectacle, this change was mostly in the territory that was not yet occupied by the beasts.
No Skyrim or human could be seen roaming the planet's surface anymore, Planet Austere was now purely a Monster Planet.
Everywhere, you could see beasts roaming. It was now a wild planet filled with carnage as the wild monsters occasionally clashed, spilling each other's blood ruthlessly as they engaged in cannibalism.
The only places where this was not seen was the 3 shelters.
The Skyrim King did not just leave his people defenseless while going to fight another man's war. He only agreed to leave because he was guaranteed of their safety inside the heirloom white grade treasure, the 3 Shelters.
This special treasure was one important reason why they were able to survive the first wave of the apocalypse.