Chaosium Removes AI Content From Miskatonic Repository
The publisher now bans AI-generated text, layout, and artwork to preserve its RPG ecosystem integrity.
Updated on Oct. 23, 2026 in Artificial Intelligence
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Chaosium has removed over 40 community-created publications from the Miskatonic Repository after determining they contained AI-generated material. The company has officially banned the use of AI tools for text, layout, and artwork in all future submissions.
Why it matters
The move marks a hard line from a major publisher against the proliferation of automated content in community marketplaces. Chaosium views the inclusion of such material as intellectually dishonest, aiming to preserve the value of human-created content for its licensed RPG systems.
Chaosium removed 40 publications from the Miskatonic Repository following an audit of community-submitted material. The company identified offending works by screening for patterns including excessive em dashes, unnatural grammar, rule inaccuracies, and a lack of descriptive tone.
The players
Chaosium
A tabletop game publisher known for managing licensed RPG systems including Call of Cthulhu, RuneQuest, and Pendragon.
Miskatonic Repository
A community-driven digital marketplace platform operated by Chaosium for players to sell user-created game material.
The details
Chaosium established a new policy prohibiting AI use for idea generation, text creation, rule summarization, layout, and artwork. Internal teams reviewed the existing Miskatonic Repository catalog, which hosts user-created content for Call of Cthulhu and RuneQuest, to identify works that violated these standards. The publisher explicitly defines the use of these tools as theft and derivative, opting to clear the platform of automated submissions regardless of their performance or popularity.
Timeline
October 23, 2026: Chaosium confirmed the removal of over 40 publications from the Miskatonic Repository.
The Tech Race
This move represents a departure from platform models that permit the open use of generative tools in community markets. Chaosium is now enforcing a strict human-only requirement to protect the integrity of its licensed RPG ecosystem.
Creators using the Miskatonic Repository must now ensure all submissions are free from AI-generated text, layouts, and artwork to remain on the platform. The change impacts anyone contributing to the Call of Cthulhu, RuneQuest, Pendragon, and Age of Vikings ecosystems.
The takeaway
Chaosium is signaling a move toward stricter moderation to preserve the value of human-authored roleplaying content. Community members should track future updates to the platform's submission guidelines, as the publisher has prioritized removing automated content as a permanent policy.
Further reading
Explore the broader implications of automated content at /tech/artificial-intelligence/
Source note: This article includes information reported by TechRaptor.
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