The 666 Layers of The Abyss

Demons in D&D have long been one of my favorite villains to pit against PCs.  As such, I have slowly developed and altered the baseline D&D cosmology for demonkind to reflect Greyhawk's vast involvement with demons.  

Portions of these entries were inspired by the Gord the Rogue novels Gary Gygax wrote (both while with TSR and after his departure), as well as from the AD&D game ran by my good and dear friend, Allen Ruch, while we both attended Penn State University.

Excerpts from The Demonomicon Of Iggwilv

I started this series of articles in conjunction with the late-August 2001 launch of the Greyhawk fan-site Canonfire!, and have sporadically added to the series as time passes.   

Myths

• In The Beginning . . . 

• Abyssal Geneaology

The Lower Planes

• Stygia, The River of Hatred

• The Planes of the Abyss

• The Planes of Hades

General Demonic Information

• Standard Demonic Resistances

• Standard Demonic Abilities

• Demon Amulets

Demons

• The Goristro

• The Marut

Unique Demons (Lords, Princes, etc.)

• Baphomet, Demon Lord of Minotaurs

• The Cabrir

• Fraz-Urb'luu

• Tiamat, Demon Queen of Dragons