Ptolus: City by the Spire
A city of mysteries, secrets, and dark histories, Ptolus lies forever in the shadow of a towering stone spire reaching impossibly high into the sky, an enigma and reminder of evil long past. In Ptolus, the supernatural is expected and treachery lies around every corner—or is it that the supernatural lies around every corner and treachery is expected? Either way, the city of Ptolus abounds with danger, magic, intrigue, and above all, adventure.
A full description of this campaign is found in the Ptolus Player's Guide, linked on the first page of the recruitment thread. It tells you everything you need to know about creating a character in Ptolus.