The original campaign had a reputation for being somewhat "skeletal" in places—brilliant ideas that needed a skilled Keeper to flesh them out. The Companion does this heavy lifting.
It is difficult to find flaws in the Companion, as it is widely considered the gold standard for RPG supplements. However:
"I ran Masks for two years. The first year was chaos. The second year, after I found the Companion PDF, everything clicked. My players actually started taking notes because the handouts had so many clues." – Reddit Keeper.
"The Companion saved my game during the Australia chapter. The original book gives you two paragraphs. The Companion gives you ten pages of Aboriginal mythology, colonial horror hooks, and a non-linear exploration system." – Yog-Sothoth.com user.
First, let’s clear up a common confusion. The Masks of Nyarlathotep Companion is not a Chaosium official product. Instead, it is an extraordinary piece of fan-created content, originally compiled and written by the legendary Call of Cthulhu fans Scott Dorward, Mike Mason, and a host of contributors from the Yog-Sothoth.com community. (Yes, that Mike Mason—who later went on to co-write the official Masks of Nyarlathotep 7th edition slipcase set!)
The Companion was created for the 5th and 6th editions of the game, but its contents remain 95% compatible with the 7th edition and the recent Masks of Nyarlathotep collector’s edition.
Think of it as a "director’s commentary" combined with an "artifact evidence locker." While the original campaign gives you the skeleton of the plot, the Companion provides the muscle, nerves, and skin.
Because this is a fan work, it exists in a legal gray area. The Companion was originally released for free by the Yog-Sothoth.com community, respecting Chaosium’s intellectual property by not reproducing the full campaign text.
Your best legitimate source:
Warning: Beware of eBay sellers asking $80+ for a "rare physical Companion." While the physical book is rare, the PDF is freely available. Do not pay for a scanned copy.
If you want, I can help you write a specific section of that paper (e.g., the analysis table, or a paragraph comparing the Companion to other Chaosium supplements) once you tell me which edition of the Companion you own and which aspect interests you most. Just let me know. masks of nyarlathotep companion pdf
The Masks of Nyarlathotep Companion (MONC) is widely considered the ultimate community-driven guide for running one of the most legendary RPG campaigns ever written. Originally a collaborative fan project on the Yog-Sothoth.com (YSDC) forums, this mammoth supplement grew into a professional-grade volume spanning over 700 pages. What is the Masks of Nyarlathotep Companion?
The Companion is a massive resource designed to augment the world-spanning Call of Cthulhu campaign, Masks of Nyarlathotep. While the original campaign provides the plot and core locations, the Companion offers a "deep-dive" into historical authenticity, providing Keepers (Game Masters) with:
Historical Detail: Exhaustive research on 1920s life in locations like New York, London, Cairo, Kenya, and Shanghai.
Expanded Scenarios: Additional plot threads and prequel adventures to flesh out the journey.
Enhanced Props: Hundreds of high-quality handouts, including realistic newspaper clippings and maps.
Keeper Advice: Practical tips from veterans who have run the campaign over its 30+ year history. The "Sand Bat" and "Bloody Tongue" Editions
The book went through several iterations during its development and eventual limited release:
Bloody Tongue Edition: Often refers to early draft versions (e.g., version 0.9) shared during the project's development.
Sand Bat Edition: The definitive hardcover and PDF version released by Chaosium and Sixtystone Press following a successful 2015 Kickstarter. Current Availability of the PDF
Help finding Masks of Nyarlathotep Companion : r/callofcthulhu The original campaign had a reputation for being
The "Masks of Nyarlathotep Companion" is a legendary resource in the tabletop roleplaying community. Originally created as a fan project by the community at Yog-Sothoth.com (YSDC), it grew into a mammoth 700+ page tome of advice, Keeper resources, and expansion material. It was designed specifically to support what many consider the greatest roleplaying campaign of all time: Chaosium's Masks of Nyarlathotep.
Whether you are a seasoned Keeper or preparing to run this massive campaign for the first time, understanding the history, contents, and digital availability of the Companion PDF is crucial. What is the Masks of Nyarlathotep Companion?
The Masks of Nyarlathotep campaign is famous for its complexity. It is a massive, globe-trotting sandbox where player characters investigate a cult conspiracy spanning several continents in the year 1925. Keeping track of hundreds of NPCs, clues, and timelines is a monumental task for any game master (Keeper).
The Companion was born out of the collective wisdom of Keepers who had run the campaign over several decades. It includes:
Keeper Advice: Deep dives on pacing, managing player death, and tracking complex clue networks.
Historical Context: In-depth dossiers on the real-world 1920s locations featured in the campaign, providing sensory details to bring the era to life.
Pre-Written Scenarios: Brand-new side adventures and a prequel to help onboard players or give them a break from the main plot.
Expanded Handouts: Hundreds of incredibly immersive, high-quality prop mockups, newspaper clippings, and telegrams. The PDF Availability Maze
Finding a legitimate digital copy of the Masks of Nyarlathotep Companion PDF can be incredibly confusing due to its unique publishing history. The Original Editions
The project was funded via a highly successful Kickstarter in 2015 to support the YSDC community hub. Digital versions were circulated to backers under names like the "Bloody Tongue Edition" or the "Sand Bat Edition". Masks of Nyarlathotep Companion special Sand Bat edition "I ran Masks for two years
The Masks of Nyarlathotep Companion is a massive, fan-created supplement for the legendary Call of Cthulhu campaign. Originally a collaborative project from the Yog-Sothoth.com community, it evolved into an epic 775-plus page tome designed to help Keepers manage one of the most complex RPG campaigns ever written. Core Contents
The Companion serves as a "Keeper's Bible," offering deep-dive resources that go far beyond the standard campaign book:
Detailed NPC Profiles: Provides fully statted NPCs for every location, which is particularly useful for replacing player characters (PCs) who inevitably die or go insane.
Side Adventures: Includes additional scenarios like a "side-trek" featuring Jackson Elias' notes in Hong Kong to flesh out the world.
Campaign Integration: Offers advice on weaving other published Call of Cthulhu scenarios into the global journey.
Keeper Advice: Extensive sections on pre-planning, managing global travel, and handling the "moving parts" of the investigation. Availability and Versions
The "Sand Bat" Edition: This is the most famous version of the Companion, resulting from a successful Kickstarter campaign. While a limited print run exists, it is now primarily found as a PDF.
Edition Compatibility: The Companion was written for the 6th Edition of Call of Cthulhu. While still highly valuable for the current 7th Edition (7E) of Masks of Nyarlathotep, Keepers will need to convert some stats and note that newer 7E additions, like the Peru chapter, are not covered in the original Companion.
Where to Find: Chaosium historically hosted the PDF to support the fan community, with proceeds often going back to the Yog-Sothoth forums. Physical copies are rare and typically sell at "collector prices" on the secondhand market. Is it Essential?
While many veteran Keepers consider it a "gem" of their collection, it is not strictly necessary to run the campaign. The 7th Edition of Masks of Nyarlathotep was significantly expanded by Chaosium to include much of the depth (like the Peru prequel) that the Companion originally aimed to provide.
Physically, the book is a massive hardcover clocking in at over 500 pages. The PDF version offers specific advantages for the modern Keeper: