The Chaldean Archives (by Eldritch Fields).
https://vladar.bearblog.dev/itdr-conversion-the-chaldean-archives/
Rules for fantastic adventure games playable with paper and pencil and polyhedral dice · By
The Chaldean Archives (by Eldritch Fields).
https://vladar.bearblog.dev/itdr-conversion-the-chaldean-archives/