An excerpt of Krater's description on Steam:
"The game brings you far into the future of a post-apocalyptic Sweden. Once home to IKEA, Vikings and Minecraft, today its primitive inhabitants scavenge the broken overgrown world for technological artifacts.
At the rim of an impact site known as the Krater, three factions vie for control over the wound opening up into the world below. Consisting of an endless series of caves and tunnels filled with old world treasures and perils, the Underside stretches into the depths of the fallen Swedish civilization."
Fallen Swedish civilization?! Sold!