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Black Market Guide to Immortality

Created by Nine Heavens Press

What are you willing to become for eternal life? The Black Market Guide is a 5e/PF2e sourcebook expanding the worldbuilding of Undying Corruption into the obsession of immortality that gripped East Asia. New subclasses, ancestries, and bestiary galore!

Latest Updates from Our Project:

Update: Item Preview! New Art!
8 months ago – Thu, Jul 24, 2025 at 06:37:27 PM

Hello, all! We're nearing August 18th, the current planned release date for our campaign. Time sure is flying. Well, we still have much to share during the lead up.



If you were ever curious about what the Ecdysis of Imperfections class feature/focus spell looks like, it's something like this. We had a bit of body horror in mind; after all, you're shedding your physical form and molding your insides into a new, more perfected you.

Brilliant work by our friend and collaborator, MAETERS!


We first got the idea for the Immortal-Killing Blade from the Investiture of the Gods. The version I think used by Jiang Ziya to defeat Daji was a dagger, but I thought the concept was far too compelling not to use in our book. It's meant to be a bane for any creature with any innate means to stave off death. A lich, for example, would find that their soul's pathway back to their phylactery has been severed.

Wonderful work from our friend and collaborator, Lychii!

Stay tuned, we hope to share more! Especially something a little more experimental as far as little peeks and previews into our work goes.

Tomorrow: 5PM Pacific, StellalunaTV's Undying Corruption 5e AP stream
8 months ago – Fri, Jul 18, 2025 at 09:18:52 AM

We have our bi-weekly livestream for our Undying Corruption AP stream tomorrow, 7/19 at 5PM Pacific! The party continues pursuing Lord Wan Song-ju, their former employer, who they've revealed to be a murderer.

Even for those not interested in 5e, the stream is an excellent opportunity for folks, new people especially, to see some action in the nation of Danguk, the Korean side of our setting.

Please join us through Launch Party or through Twitch!

Project Update: Merch Previews!
8 months ago – Tue, Jul 01, 2025 at 03:55:50 PM


Hello, everyone!

I'm proud to share with you guys some plans we have for our add-ons. Besides new prints of a number of illustrations in our book, we also have an enamel pin based around our design for the Gyuki and three new stickers: ones depicting the Huodou, Spiritborn, and Jiang-shi!

Early followers (all of you!!) will receive a free Jiang-shi sticker with your order. We will offer a Spiritborn sticker for early backers and a Huodou sticker for return backers as well with possibly the Gyuki pin for early reservations (we're speaking with BackerKit about this!).

For FoundryVTT PF2e players, I'm also happy to announce that I've consolidated the modules and updated our compendium of UC creatures. They include most creatures in Tiers 2 and 3. More progress will be made as we aim to finish this up by mid-July!




Project Update: Follower-exclusive 5e and PF2e Playtest Document!
9 months ago – Mon, Jun 16, 2025 at 07:23:07 PM

Hello, everyone!

This update would've come up way, way earlier, but having migrated from Kickstarter, I'm still figuring this site out!! From now on, updates will be only for followers of this project only instead of all of our followers. 

While everyone who received an email in the past might already have received our playtest PDF containing drafts of our Kappa, Spiritborn, and Huodou species/ancestries/heritages plus five separate subclasses, anyone following the project can readily access it here in this update.

We've also been sharing both statblocks of creatures and FoundryVTT assets for the PF2e version of our game! The VTT assets in particular are being updated weekly, so please enjoy.

If you have any questions or comments, feel free to email us at [email protected] or contact us on Discord or any of our social media sites listed in the main description!