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In 870, the Krio Empire began mining a mysterious substance called sahma from the ascendancy of the elves. Within a few years, the new energy source made the self-proclaimed descendants of the Goddess the most powerful and influential civilisation on the entire continent. Believing themselves to be chosen, Cryo spent decades conquering their neighbours and threatening their former allies. When Cryo's greatness reached its zenith, the Big Bang occurred in Chernobyl, changing the course of history forever. In a few months, the most powerful empire was reduced to rubble, and the world was overrun by an equally mysterious Darkness. Every year, the Darkness returns, and along with the Great Night, new monsters born beyond the Fringe come to our cities. And now we must learn to live alongside a force that we cannot comprehend and therefore cannot overcome.