Chaos & Conquest The Spores of The Demon Lord Juiblex In Advanced Dungeons & Dragons As Well As My Old School Campaigns

It is known as Juiblex, also called The Faceless Lord, 
Lord of Sloth, Demon Lord of Poison and Ooze. It  is the demon lord & father  of Slimes and Oozes but its other names are  Szhublox & the faceless rot. Juiblex's lair is on the 222nd layer of the Abyss, which he shares with Zuggtmoy, the Demoness Lady of Fungi.  Together they are fungal rot & chaotic evil incarnate tearing apart the soul of the planes. 

Juiblex appeared in the Advanced Dungeons & Dragons Monster Manual in 1977. In first edition, Juiblex rules his own layer of the Abyss, the 528th layer, which is an infinite sea of slimes and oozes feeding off each other's putrid forms.


Juiblex is one of the most dangerous of the Abyss's demon princes not because of its ambitions but because its already among us. Slimes, jellies, & puddings are a part of him & his children. They are everywhere spreading from dungeon to dungeon moving among the planes like a fungal infection. He rules not only his own plane but the Undersump as well. A series of planar tunnels that are networked throughout the Abyss connected by the river Styx. Not only does he know all but is aware of everything going on around his children. Green slimes infect a myriad of dungeons & even though they are not intelligent in the traditional human sense. They relay a trillion  bits of data back to their demonic parent whose vary existence is a mockery to all of creation. 

Slimes move into dungeons & ruins across the multiverse giving Juiblex access to an infinite number of planes. The power of the Grey Oozes are not to be discounted. His silent assassins & spies stalk the halls of power & have claimed many a life of a powerful wizard or even some powerful  demi god children. These silent assassins are often used by his worshipers such as powerful Drown families, drug users, & poisoners of divinity along with royalty. 

The powerful bruisers of the dungeons are the Ochre jellies who are spawned by the cult rituals & rites of the cults of Juiblex. They are the strong arm of these cults taking on any who challenge the right of them to worship their parents inside dungeons & ruins. They are the hand of the entropic demon lord ruining the lives of any who challenge their lord's worship. 

The power of ochre jellies should never be underestimated & it is said that their demonic master himself uses these bastard horrors as his tools on the prime material. These 'blessed'  jellies often seem to exhibit a remarkable degree of cunning & evil intentions. They can use tactics & traps to murder any adventurers they come across as sacrifices to their 'father'.  Since the planes are in the "Kali Yuga (Sanskrit: कलियुग, translit. kaliyuga, lit. 'age of Kali') is the last of the four stages (or ages or yugas) the world goes through as part of a 'cycle of yugas' (i.e. Mahayuga) described in the Sanskrit scriptures.^[1] The other ages are called Satya Yuga, Treta Yuga, and Dvapara Yuga.

Kali Yuga is associated with the demon Kali (not to be confused with the goddess Kālī). The "Kali" of Kali Yuga means "strife", "discord", "quarrel" or "contention".

According to Puranic sources,^[2] Krishna's departure marks the end of Dvapara Yuga and the start of Kali Yuga, which is dated to 17/18 February 3102 BCE"

 Juiblex's power & influence has been on the rise as is the cycle of Abyss moves into descendancy;"Undoubtedly, few denizens in the Abyss equal, in the horror they evoke or in the hideousness of their forms, the corrupt majesty of the Faceless Lord. In the gloom that enshrouds his realm, he holds court over the glistening masses, the twitching oozes he sires. Juiblex is deemed a lesser figure in abyssal hierarchy, judged Lord of Nothing by his peers. However, in my research, I have plumbed the foul mire to examine the full darkness that is this disturbing fiend. Juiblex is a power defined by incremental advances, a being whose wickedness flows slowly but inexorably toward an unspeakable end, which troubles even this writer."

I've always loved the Demon: Juiblex artwork  by christopherburdett

Juiblex is the premiere alien demon lord whose long standing form of chaos incarnate has been the subject of being one of the possible sources for the creation by the Elder Things of the naught impossible horrors of the  shoggoths. Because of the mating of Juiblex & Ubbo-Sathla ("The Unbegotten Source", "The Demiurge") according to The Mysteries of Science which gave rise to the most dangerous & demonic of these foul monsters. 

The Pit of Shoggoths  by Azaghal

Juiblex's influence should never be uncounted. He or it is one of the most dangerous of demon lords. Ever present & waiting to corrupt & strike. His reign of terror starts when & where its needed coming into full bloom when adventurers least expect it. Here are ten ways I've modified Juiblex to fit in my home campaigns: 

1. I've used his other areas of worship to great effect for his dungeons & temples besides the usual fungal aspect of the demon lord. These include Chaos, Destruction, Evil, & Water. 
2. Juiblex's human cults are very dangerous & think that destruction of everyone & everything is good for the multiverse. They will murder when & where it suits them.
3. Juiblex has a strong on going rivalry with  Tsathoggua over certain regions of the underworld & upon Hyperborea. 
4. There are write up on Juiblex in the Wraith of the Immortals set for his place on Mystara 
5. Cults of Juiblex often pay for rare & exotic molds, slimes, & jellies 
6. The temple areas & ruins of Juiblex are often infected with some the most dire of chaotic diseases & infections
7. His influence pops up in the post apocalyptic wastelands as a god from time to time among wasteland nihilists
8. Gamma World has three temples dedicated to the demon god. 
9. Juiblex has been summoned to destroy worlds in a post apocalyptic fungus fueled frenzy over millions of years. 
10. Juiblex is actually one of a race of powerful demon lords & he is their father.