Arx is the name of an underground urban environment where your special experience will begin, in the realm of medieval fantasy. Be prepared to penetrate a world where the sun has slowly retreated and completely vanished. A world taken over by an unfriendly and threatening atmosphere, imposing the exodus of Arx inhabitants to the obscure meanders of a dwarf mine in order to survive. There, they had to become acquainted with an unusual neighborhood, among goblins, trolls and ratmen.