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SKU: CHA6066-H

Call of Cthulhu: Encyclopedia Cthulhiana

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This product releases on November 27, 2026

From Azathoth to Zylac—the Encyclopedia Cthulhiana is an essential resource for cosmic horror enthusiasts, gamers, collectors, and researchers. Learn the origins of the alien gods and monsters from the pantheons of H. P. Lovecraft and beyond. Gaze upon the detailed images of the Elder Gods while unlocking the history of the dreaded Necronomicon—if you dare! 

The Encyclopedia Cthuliana contains detailed entries on Mythos deities, Mythos monsters, forbidden tomes, and forgotten artifacts—including their appearances across all fiction, gaming, and popular culture. More than just an encyclopedia, the book includes an in-depth essay titled “What is the Cthulhu Mythos?” It also covers the timelines for the Necronomicon and the Cthulhu Mythos, and the extensive bibliography of cosmic horror texts from fiction provides perfect further reading for newcomers and scholars alike. The Encyclopedia Cthuliana is a rules-agnostic book that contains no game material. It can be used to enhance your games of Call of Cthulhu with more detail and terror, or simply as the star of a Cthulhu Mythos library.

  • THE ULTIMATE MYTHOS REFERENCE: From Azathoth to Zylac, explore the complete cosmos of H.P. Lovecraft. This epic tome is the essential resource for cosmic horror enthusiasts, gamers, and scholars, providing detailed entries on every major deity, monster, and forbidden artifact.
  • VIVID COSMIC ARTWORK: Gaze upon the horrors you dare not name! This guide features evocative, full-color illustrations throughout, bringing entities like Cthulhu, Nyarlathotep, and Hastur to life with terrifying detail that will haunt your imagination.
  • DEEP LORE & TIMELINES: Go beyond the entries with an in-depth essay exploring the history of the Cthulhu Mythos, detailed timelines for the dreaded Necronomicon, and an extensive bibliography of cosmic horror texts. It is the perfect companion for both newcomers and veteran scholars.
  • RULES-AGNOSTIC RESOURCE: This is a comprehensive lore book designed for any fan of the Mythos. While it’s a perfect tool for Keepers to enhance Call of Cthulhu RPG sessions with rich narrative detail, it contains no game-specific rules, making it a must-have centerpiece for any horror library.

Contents:

305-page hardcover book


Specifications

Players (Minimum)

2

Players (Maximum)

Minimum Recommended Age

13

Average Play Time

30 Minutes

Publisher

Chaosium