Ptolus

Ptolus is a campaign setting by Monte Cook and published by Malhavoc Press. It is scheduled to be published on August 10, 2006.

Ptolus is the setting for Cook's home game, which served as the initial campaign for the 3rd edition ruleset of Dungeons and Dragons. The campaign centers around the city of the same name, which lies on the Whitewind Sea at the edges of the crumbling empire of Tarsis. The city lies in the shadow of an impossibly tall and narrow spire. Below the city are many dungeons, including the city's sewers and a forgotten dwarven city named Dwarvenhearth.

The book itself has been described as the "most deluxe roleplaying product ever published," weighing in at 672 pages with multiple special features, including a CD-ROM that includes, among other things, two previous Malhavoc products with Ptolus connections: The Banewarrens and Chaositech.