Potwory 
Demon Skeleton
This is an excellent summon because its immune to many elements....
Destroyer
You may hunt 650 of these as a task of the Killing in the Name of... Quest. Upon completion of the task you will face Bretzecutioner.
<gallery caption...
Devourer
Devovorga
Part of the Rise of Devovorga World Quest. According to the featured article of August 26th 2010, ''"this will be a battle against the largest and mos...
Dharalion
He is the boss of the Elves. Always spawns with at least 2 Elf Scouts and 1 Elf Arcanist. Looks the same as an Elf Arcanist.
Image:Dharalion.jpg...
Diabolic Imp
'''Diabolic Imps''' have 2 bosses: The Imperor and Minishabaal (not in game anymore)....
Diamond Servant
Diamond Servant Replica
You have to kill 5 of them in a mission of the Forgotten Knowledge Quest....
Diblis The Fair
Dipthrah
Dipthrah was sentenced to be locked away, after his part in the conspiracies against the pharaoh, Arkhotep. He is the Pharaohs of divinity, and the on...
Dire Penguin
They generally spawn around other penguins.
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Image:Dire Penguin.jpg|Dire Penguins appear unexpectedly in snowy area...
Diremaw
<gallery captionalign="center" mode="nolines">Diremaw Artwork.jpg|Official Creature Artwork</gallery>
'''Beware''':
A secondary spawn mechanic allow...
Dirtbeard
It's the second floor boss. Use his body to get a random reward before you use the body of Evil Mastermind, otherwise you may not get any item. Probab...
Diseased Bill
Is an infected human....
Diseased Dan
He's an infected human, a plague carrier....
Diseased Fred
Is an infected human. He is the strongest of the diseased humans....
Distorted Phantom
Doctor Perhaps
It's the first floor boss. Use his body to get a random reward before you use the body of Evil Mastermind, otherwise you may not get any item. Doubtle...
Doom Deer
Doomsday Cultist
Appears as a raid for five minutes after a player lights the Lightbringer's Basin and receives the following message<br/>...