In a city shrouded in steam, the gods are dead and humanity is the cheapest fuel. Climb the "Inhuman Stairs" and lose 10% of your humanity for each level you ascend, in exchange for the power to destroy the world. Ivan's family was massacred by the church. Holding 100 SAN points, he stood on the edge of the cliff of fate - sacrificing his humanity and turning into a monster for revenge? Or should you stick to your original intention and join the Fire Stealers to ignite the fire of the new world? Warning: The price of power is never going back.