Trapped within a gargantuan ring of ivory rising higher than the tallest mountain, simmering below a horrid scar blocking the sky basking everything in a harsh scarlet light, is Vaskeer. The last remnants of humanity, safe from the apocalypse outside of the Ivory Wall, dwell within. The frosty north is dominated by the Iron Empire and its conquered residents, the south is the sprawling savannahs of the Soleri, dotted with nomadic tribes.
Vaskeer is defined by souls. The Soul Logic, a natural law the same as gravity to the people of Vaskeer, means that any who slay another absorb their soul into themself. Human bodies are only made to house one soul, so the killing of another is almost always a death sentence for the killer as well, twisting them into a monstrosity with no control of their body known as a Lost. All souls not slain rise up to the glorious Burn that dominates the sky of Vaskeer. A collection of 500 years of souls writhing in agony, casting light down from above. Monsters created from twisted souls prowl the land, causing the wilds to become dangerous, even for those who can slay the beasts.
An oppressive Empire of Iron dominates the north, walled cities of metal with storm-torn land between. Soleri tribes roam the large land, only uniting at the center where a gnarled, twisted tree rises to the Burn.