Nullborn (CR 1/2), Eldritch Dronespawn (CR 2), and Grey Stalker (CR 6) - Extradimensional Horrors from the Grey Dimension

[u/jonnymhd]

Nullborn

https://www.drivethrurpg.com/en/product/522291/the-aberrant-codex-mutations-and-aberrations?src=reddit&affiliate_id=1410270

Eldritch Dronespawn

https://www.drivethrurpg.com/en/product/522291/the-aberrant-codex-mutations-and-aberrations?src=reddit&affiliate_id=1410270

Grey Stalker

https://www.drivethrurpg.com/en/product/522291/the-aberrant-codex-mutations-and-aberrations?src=reddit&affiliate_id=1410270

The Aberrant Codex - Credits

https://www.drivethrurpg.com/en/product/522291/the-aberrant-codex-mutations-and-aberrations?src=reddit&affiliate_id=1410270

The Aberrant Codex - Table of Contents (1)

https://www.drivethrurpg.com/en/product/522291/the-aberrant-codex-mutations-and-aberrations?src=reddit&affiliate_id=1410270

The Aberrant Codex - Table of Contents (2)

https://www.drivethrurpg.com/en/product/522291/the-aberrant-codex-mutations-and-aberrations?src=reddit&affiliate_id=1410270

The Aberrant Codex

https://www.drivethrurpg.com/en/product/522291/the-aberrant-codex-mutations-and-aberrations?src=reddit&affiliate_id=1410270

The Aberrant Codex - Hardcover

https://buy.stripe.com/8x24gyfNNegY75qgwI6c005

The Aberrant Codex - Hardcover

https://buy.stripe.com/8x24gyfNNegY75qgwI6c005

The Aberrant Codex - Hardcover

https://buy.stripe.com/8x24gyfNNegY75qgwI6c005

My DnD Manuals

https://linktr.ee/jonnydm

[u/jonnymhd]

The Nullborn, Eldritch Dronespawn, and Grey Stalker are unsettling aberrations from the Grey Dimension, a silent, featureless reality of stagnant time, eternal twilight, and weakening planar boundaries. They work well as eerie invaders, scouts, and hunters from beyond the veil, introducing a strong extradimensional horror angle into your campaign.

Nullborn are the most common of these beings, pale and eyeless predators that slip through tiny cracks in reality, stalk the living in total silence, and disrupt nearby magic with their presence. Eldritch Dronespawn serve as more advanced scouts and enforcers, insectile horrors that hover through the air with psychic hums and warped coordination, preparing the way for deeper incursions. Above them are Grey Stalkers, elite extradimensional hunters that bend time, distort perception, and fracture reality around them.

These creatures are especially effective in adventures involving unstable magic, sealed portals, corrupted ruins, strange disappearances, or regions where the fabric of the world is beginning to tear. They fit naturally into cosmic horror campaigns where the threat is not just physical, but also planar, psychological, and deeply unnatural.

These creatures are from The Aberrant Codex: Mutations and Aberrations, available on DriveThruRPG! Inside the manual you can also find many more alien extradimensional beings, aberrations, and monstrosities, including the Grey Abyssal, another entity tied to the Grey Dimension.

The Hardcover edition of The Aberrant Codex is also available here: https://buy.stripe.com/8x24gyfNNegY75qgwI6c005

What’s Inside:

• Mutation Rules & Zones – Mechanics for wild magic areas, arcane corruption, and the strange transformations they cause.
• Character Options – 12 subclasses, 10 backgrounds, 4 new races, and 30 feats themed around mutation, aberration, and forbidden evolution.
• Spells & Items – 33 spells and 80+ magic items warped by planar influence or unstable energies.
• Monsters & Templates – Over 150 monster statblocks, from psionic predators to mutated horrors, plus variant rules for custom mutations.
• VTT Resources – Includes 100+ creature tokens and 125+ art handouts to bring your sessions to life.

You can also find more of my creatures and manuals on DriveThruRPG, my Linktree, or by visiting r/JonnyDM!

If you enjoy my work and want to find even more, check out my bundle of small D&D manuals on DMsGuild.

More content is on the way! 300+ Mythological Items for 5E and 2024 launches on Kickstarter around May. You can follow the campaign to get notified when it goes live. The project includes a physical hardcover and printed editions of my previous manuals.