Basil Wolverton was a comic book genius whose inspired generations of artists and writers This comic first was first presented in the Dec 1951 issue of Adventures into Terror #7. This particular comic has a whole pack of incredible Wolverton creations. They can be used to populate your own old school science fantasy campaigns.
Kondrmotul- Giant Tape Worm Snakes
Armor Class: 8(11)
Hit Dice : 12
Attacks: Bite (1d6)
Special: Spit Acid 2d6, Infect with Young
Move : 6
Green dimensionally distorted ground dwelling horrors from beyond human reckoning. Fast moving, dangerous, and disease ridden horrors that dwell upon a dimensional half world.
Drianazgweg -The Blue Winged Horrors From Beyond
Armor Class: 7(12)
Hit Dice: 4
Special: Flight, Immune To Most Magic And Psychic Abilities
Move:6 (18 when Flying)
The Caturilor- Half Men Things
Armor Class: 5 (14)
Hit Dice : 2
Attacks : Bite 1d6, Claw 1d4
Specials : Carriers of Disease such as Red Death
The Half World of Delugbarur
This half plane of existence is folded between the dimensional spaces. A world of weird geometry and weirder creatures. Those who travel here by dimensional adjustment are subject to its unholy physics and laws. This is a place where prolonged exposure results in a -3 to Charisma. It is populated by the lost and damned.
Those who survive this hellish desert world are forever touched in some way. Some develop mutations and others aberrations of the body. There is a 40% chance of those who dwell here long develop some type of detrimental mutation.
This mini plane prime is sometimes used by advanced alien races as a dumping ground for the criminal or insane of inter dimensional races.
You can read more about The Genius of Basil Wolverton Right over HERE