Kamarathin is a low/dark fantasy world created by publisher D3 Games. It is meant to be fleshed out in an ongoing series of supplements. It is intended for use with the HERO system, but according to the publisher it can be adapted to any game system.
From the Publisher
"The world of Kamarathin has had a long and fascinating history. Created by A-ar for reasons best left to the imaginations of the philosophers, theologians and minstrels; it is said that she was the crown jewel of their work.
"Kamarathin was shattered and remade during the Scale Wars where gods and men battled for petty jealousy and greed. Some believe that this is the time of dragons or perhaps when they were all destroyed, others put forth that the Scales in question weighed the balance of good and evil instead of sentient monsters. The truth will likely never been known, but the Great Darkness will never be forgotten.
"A time where chaos reigned and hope was all but extinguished; Spirits roamed across Kamarathin warping and changing the world and her populations to fit their own images. The first of the New Gods took shape during this time as the Elder Gods sank further into obscurity.
"The Great Darkness loomed over the A-ar's great work for countless generations before the Rise of Heroes; a time when men and women took fate into their own hands and fought against the spirits and monstrosities that roamed the new face of Kamarathin.
"Lives and souls were not the only precious gifts to be lost during these times; Knowledge was erased as well. The Great Works had been known to the servants of the A-ar and it was with them that the world was built. The magic that the mortals of today struggle to understand and control is far less than a pale shadow of the power the A-ar once manipulated. The artifacts of these ancient works can still be found in the ruins scattered throughout the lands, the art of their creation long forgotten."