Chaosium 

Insights to immerse your scenarios and campaigns deep in the heart of the Cthulhu Mythos.

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Monsters of the Mythos.

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Deities of the Mythos

Malleus Monstrorum - Mythos Bestiary

Call of Cthulhu 7e

Here you know the horrors of emptiness, the nightmares and the unspeakable Laurers.
Ancient secrets, whispering doctrines, and collected facts about the aliens and otherworldly horrors of the Cthulhu myth. A cavalcade of monsters and god-like alien intelligences beyond human understanding, all vividly detailed and depicted. With over 250 entries to inspire countless adventures.
The information inside is designed to bring to life the creatures and bizarre races of the Cthulhu myth at the game table, as well as all manner of great ancients, outer gods, elder gods, avatars, and unique beings.
Their history and statistics updated and revised for the Call of Cthulhu 7. Edition game (and Pulp Cthulhu).

Cthulhu Bundle

Fundamental truths of the cosmos herein lie, to be used to support and inspire countless adventures by bringing Cthulhu, Hastur, Azathoth, and many others to your games. With over 110 entries concerning Great Old Ones, Outer Gods, Elder Gods, Avatars, and Unique Beings, this tome supplies a plethora of ideas to immerse your campaigns and scenarios deep in the heart of Cthulhu Mythos lore.

Join the adventure