
This jam is now over. It ran from 2025-08-01 15:00:00 to 2025-08-27 06:59:59. View 8 entries
Some things are not meant to be known! This month we're exploring dangerous secrets, forbidden texts, and knowledge that comes with a terrible price. From ancient grimoires to sanity-shattering revelations, wisdom can be a curse.
Adventures: Protecting dangerous knowledge, stopping cultists seeking forbidden truths, or surviving horrifying revelations
NPCs: Mad scholars, knowledge seekers, protective librarians, or those driven insane by truth
Player Options: Sanity mechanics, knowledge corruption systems, or scholar backgrounds with dark secrets
Worldbuilding: Forbidden libraries, censorship organizations, or cultures that guard dangerous truths
Monsters: Knowledge parasites, manifestations of madness, or beings that exist as pure information
Tables & Tools: Forbidden knowledge generators, sanity loss tables, or dangerous revelation systems
Something Else: Whatever wild thing you can come up with, do it!
- PDF, text document, or interactive tool
- Free or pay-what-you-want pricing during jam period
- Include "Fobidden Knowledge Jam" in your title or description
- 1-2 paragraph description of what makes your content unique
This jam is about learning and sharing, not just competition. We encourage:
- First-time creators - never made ttrpg? Perfect time to start!
- Iteration and feedback - share work-in-progress posts
- Collaborative spirit - comment on and support other submissions
- Knowledge sharing - what techniques did you discover?
Quick Secret (under 1,000 words): Dangerous knowledge, mad scholar NPCs, or cursed texts
Full Revelation (1,000-5,000 words): Complete knowledge-based adventures or detailed forbidden libraries
Keeper's Codex (any length): Knowledge mechanics, sanity systems, or truth-guarding cultures
Special Challenge: Make knowledge feel genuinely dangerous without punishing player curiosity too harshly!
Submission Deadline: August 26th
Community Showcase: August 27th-31st
- Share progress with #ForbiddenJam
- Join our Discord https://discord.gg/5Ub6vkFDRQ for discussion and feedback
- Post work-in-progress updates to get community input
- Original work only (or clearly credited remixes/hacks)
- Must be submitted during the jam period
- Be respectful and supportive of other creators
- Have fun, and bask in the glory of your own and others creations
- What counts as forbidden knowledge If you feel like it invokes knowing the unknown, it counts!
- Can I use existing systems? Absolutely! System-neutral works too.
- What if I don't finish? Submit what you have - partial works are welcome!
- Can I collaborate? Yes! Tag all contributors.
Are you ready to delve into the deep which should not be delved into? Let's see a world we've never known!
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