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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: Campaign Start Postponement, Previews, FoundryVTT update
about 1 year ago – Thu, Aug 07, 2025 at 05:27:28 PM

Hello everyone! 

We have EP 9 of Stellaluna's Actual Play stream of Undying Corruption coming up Saturday 8/9 at 3PM Pacific! Watch for a good preview of our worldbuilding.

  • Campaign Launch: September 2nd

Got a hefty update coming up for all of you here. First thing's first, a number of eagle-eyed followers have already noticed that we've postponed the start of the campaign. With GenCon last week, our efforts to get the word out stalled somewhat unexpectedly. We're hoping to recover some time to ensure that we have the biggest first day launch possible on September 2nd. The additional time of course will be used to fine-tune and add more stretch goals. Speaking of which!

  • Stretch Goal Preview: The Guxiang Species/Heritage

The Guxiang are insectoid people in Long Xin who were inflicted with a particularly cruel curse. In this world, the gu curse afflicts the soul, even those of the caster or counteractor. It infuses the soul with a debilitating poison so deeply that even reincarnation can't rid one of it. The lucky few that survive are transformed. As their soul conflicts or finds harmony with the insects and creatures used as spell components, their body also inherits their traits. Many guxiang embark on the path of cultivation in order to come to terms with their curse and find a sympathetic community.



You can expect more of the Guxiang species/heritage as one of our upcoming stretch goals! We're taking this time to concoct and add more additional goodies up to unlock especially as we delve deeper into our cultural research.

  • Foundry VTT

On the FoundryVTT end, I've updated the module with an additional compendium including ancestries and heritages from Undying Corruption! Class feats are still in progress and we're taking this time to give what we have a good look and see where we can improve post-remaster. Keep an eye on that drive over the weekend also. Now that I have several days off from work, I'm planning on doing more with setting up digitally playable content. 

  • Q&A Livestream

All that said, we will make these extra two weeks worth your while. We're planning to announce a live Q&A session between me, Stellaluna, and our layout artist, Charlie. Everyone is encouraged to participate! I'm eager to see what people are most curious about "The Black Market Guide" and I'm hoping the event will inspire us to pursue different creative directions. You can expect more news on this hopefully by next week's update.

We'll take this opportunity also to fine-tune our stretch goals. In fact, we've taken the time to add several more ancestries/heritages/species to our stretch goals, one of which we're delighted to preview here.

  • Last Poll, New Poll

Finally, last week's poll showed us that most gamers still either play exclusively 2014 or mix and match whatever they feel is good about both editions. That's about what we expected, but it's great to get confirmation on that. We'll proceed with tailoring our book to 2014 players with additional documents or sidebars that assist with 2024 conversion.

This week, we have a poll for everyone. We want to get your opinion on what you're most excited for in the book. This will help us fine-tune our stretch goals and improve our crowdfunding campaign with this additional time! We look forward to everyone's thoughts again.

If you have any comments or questions, please comment here or email us at [email protected].

We also encourage you to join our server in Discord!



Just a reminder also, reservations are still available! You can do so to get a free Gyuki enamel pin with your pledge.

Update: PF2e FoundryVTT and Playtest Documents
about 1 year ago – Thu, Jul 31, 2025 at 02:18:42 PM

Hello, everyone, and if you're at GenCon this week, I hope you guys discover some fun new games!

For followers, we have a new link to updated versions of both our 5e and PF2e playtest document and our playtest FoundryVTT module. We've taken into account all playtest reviews we received thus far and worked them in. This sort of engagement helps us make sure we can put out the best version of game mechanics possible, so thank you so much!

For 5e followers:

We also have a new poll out. I'm curious to know which version of 5e people are most playing so that we can figure out how to best meet players where they are.

If you have any questions or comments, you can reach us at [email protected]! Or consider joining our Discord server:

Click here to join our server!


Update: Item Preview! New Art!
about 1 year 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
about 1 year 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!
about 1 year 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!