Chaosium Inc.

Games By Chaosium Inc.:

  • Rivers Of London
  • Call Of Cthulhu
  • RuneQuest

    • Chaosium was founded by visionary game designer Greg Stafford in 1975. For more than forty years, Chaosium Inc has captivated gamers, readers and mythic adventurers worldwide. Its award-winning roleplaying games, boardgames and fiction have been acclaimed as some of the most engaging and innovative of all time.

    Key RPG systems for Chaosium include, Call Of Cthulhu, Runequest and Pendragon.

    Top Books


    Call of Cthulhu Starter Set Call of Cthulhu Starter Set
    Call of Cthulhu Starter Set Horror, Mystery and Investigation In A Box! The Call of Cthulhu Starter Set contains everything you need to play the world’s best roleplaying game of horror, mystery and investigation! Updated for the 40th Anniversary of Call of Cthulhu What is Roleplaying? In a roleplaying game, everyone works together in a team, each playing an investigator character. One player runs the game—the...   [click here for more ] Chaosium   $9.99  

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    Call of Cthulhu 7th Edition - Keeper's Rulebook Call of Cthulhu 7th Edition - Keeper's Rulebook
    Call of Cthulhu 7th Edition - Keeper's Rulebook Chaosium's Horror Roleplaying in the Worlds of H. P. Lovecraft The Old Ones ruled the earth aeons before the rise of man. Traces of their cyclopean cities can still be found on remote islands, buried amid the shifting desert sands, and in the frozen wastes of the polar extremes. Originally they came to this world from the stars. They sleep now, some deep within the earth or beneath the sea. When...   [click here for more ] Chaosium   $27.95  

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    Call of Cthulhu Investigator Handbook 7th Edition Call of Cthulhu Investigator Handbook 7th Edition
    Call of Cthulhu Investigator Handbook 7th Edition A CORE GAME BOOK FOR PLAYERS “We live on a placid island of ignorance in the midst of black seas of infinity, and it was not meant that we should voyage far.” —H.P. Lovecraft Will you stand against the horrors of the night? Whether learned professor, nosy journalist, or hard-hitting detective, investigators need all the help they can get. Let this book be your guide. The Investigator...   [click here for more ] Chaosium   $22.95  

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    Delta Green Delta Green
    Delta Green Welcome to America at the end of the millennium. Do you know who is pulling the strings? Delta Green knows. Things from beyond space and time that lurk and titter in the shadows, the slow rot at the core of humanity, the dark stars that whirl madly above - these are the true masters of the world. Delta Green has been fighting since the 1928 Raid on Innsmouth, and the fight still rages on. This book...   [click here for more ] Pagan Publishing   $19.98  

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    Achtung! Cthulhu: Plotting Cthulhu Dossier Achtung! Cthulhu: Plotting Cthulhu Dossier
    Achtung! Cthulhu: Plotting Cthulhu Dossier The 19 page Plotting Cthulhu Dossier helps you construct some truly nefarious Mythos plots set against the backdrop of World War Two. By looking at various inspirational film and television sources it hopes to show how you, the Keeper, can mine them for ideas for your own games. If you are still a bit stumped, there is a comprehensive plot generator to further aid you in your machinations plus a two...   [click here for more ] Modiphius   $1.00  

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    Raiders of R’lyeh: Gamemaster’s Guide & Complete Rules Raiders of R’lyeh: Gamemaster’s Guide & Complete Rules
    Raiders of R’lyeh: Gamemaster’s Guide & Complete Rules UPDATE:  RAIDERS OF R’LYEH: FROM THE TIDELESS SEA, our first big expansion (at 560 pages and in final layout) for RAIDERS of R’LYEH has launched! Follow the Kickstarter here: https://www.kickstarter.com/projects/1375282718/raiders-of-rlyeh-from-the-tideless-sea-epic-horror-sandbox SEE A PREVIEW HERE: http://raidersofrlyeh.com/img/ror-preview.pdf RAIDERS...   [click here for more ] Cipher Bureau   $39.99  

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    Grammar Fuel: Horror Genre & Subgenres Grammar Fuel: Horror Genre & Subgenres
    Grammar Fuel: Horror Genre & Subgenres Two PDFs —one with border pages internally (as shown in the sample pages) and one without border pages. Grammar Fuel: Horror Genre & Subgenres is an 82-page book of random noun, verb, adjective, and adverb d100 tables each for the Horror genre: horror, weird & cosmic horror, dark fantasy, gothic horror, witch, demon, vampire, ghost,...   [click here for more ] Ken Wickham   $12.99 $9.96  

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    Cthulhu Live 3rd Edition (LARP) Cthulhu Live 3rd Edition (LARP)
    Cthulhu Live 3rd Edition (LARP) This newest and best edition of Cthulhu Live includes a richly detailed and uniquely playable rules system that incorporates decades of best practices and refinements from hundreds of gamers worldwide. Features of this self-contained live-action roleplaying game include:  All-new rules for skills, combat, Sanity, Magic, and Psychic powers. Extensive information on organizing events, stagecraft...   [click here for more ] Skirmisher Publishing   $9.99  

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    1920s Investigator's Companion 1920s Investigator's Companion
    1920s Investigator's Companion An Essential Guide for Players When faced with the horrors of the Cthulhu Mythos, investigators need all the help that they can get. This essential player's aid for Call of Cthulhu provides it. The 1920s Investigator's Companionis split into four sections. "The Roaring Twenties" details life in the 1920s, from a general historical overview to listing of favorite songs, books, and films...   [click here for more ] Chaosium   $8.95  

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    Odd Soot Odd Soot
    Odd Soot Science Fiction Mystery in the 1920s Humanity has reached the stars   An alien plague without a cure threatens civilisation   Only a few tragic heroes can save mankind      Odd Soot is a roleplaying game of mystery and investigation set on an alternate Earth in the 1920s. Mankind has travelled into space and found alien civilisations....   [click here for more ] FrostByte Books   $14.95  

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    Hideous Creatures: A Bestiary of the Cthulhu Mythos Hideous Creatures: A Bestiary of the Cthulhu Mythos
    Hideous Creatures: A Bestiary of the Cthulhu Mythos Lovecraft created his various “shadowy congeners” because the stories of vampires, werewolves, and even ghosts had become too familiar and too formulaic to evoke true horror. Almost a century after he wrote, his own monstrous races have likewise begun to seem like comfortable story furniture rather than unnerving signals that the world is horrible and wrong. In Hideous Creatures: A Bestiary...   [click here for more ] Pelgrane Press   $24.95  

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    CTHULHU: Grundregelwerk Edition 7 CTHULHU: Grundregelwerk Edition 7
    CTHULHU: Grundregelwerk Edition 7 CTHULHU Edition 7 Horror in den Welten des H. P. Lovecraft Lange vor dem Aufstieg der Menschheit herrschten die Großen Alten über die Erde. Die Spuren ihrer zyklopischen Städte sind noch immer auf abgelegenen Inseln, vergraben im Wüstensand und unter dem Polareis zu finden. Einst kamen sie von den Sternen auf unsere Welt. Jetzt schlafen sie, manche weit unter der Erdoberfläche...   [click here for more ] Pegasus Press   $21.69  

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    Chaosium Inc. News

  • Out now: Going Underground, a new case file for the Rivers of London Roleplaying Game
    Out now: Rivers of London: Going Underground is a stand-alone scenario for...
  • The Orient Express has arrived at its destination - thank you for your support!
    That is it. The Orient Express has just arrived at its...
  • Play Call of Cthulhu at Generation Games, Sydney 20-21 April
    Play Call of Cthulhu at Generation Games in Syndey NSW this...
  • Horror on the Orient Express The Board Game: Jeff talks with Adam and Gołąb
    As we enter the final two days of the Kickstarter,...
  • Mike Mason boards the train: Horror on the Orient Express The Board Game
    With just three days to go in our Kickstarter, Call...

    • Latest Suppliments

    Casebook Bundle [BUNDLE]

    Publisher: Son of Oak Game StudioThis special bundle product contains the following titles.Mythic IncidentsRegular price: 0Bundle price: 0Format: PDF Sometimes when things are bad people assume they can't get worse. Don't ...More...
    The Deathless Tarot - Major Arcana

    Publisher: Son of Oak Game StudioBring the legend and mysticism of the Tarot to your City of Mist game with a multifaceted product! The Deathless Tarot is both an in-game ...More...
    Shattered Worlds Encounter: Mad Molly and The Black Cat
    Publisher: siegebreaker games Based on the world’s most popular tabletop role-playing game, Shattered Worlds transports the players to a gritty post-apocalyptic setting where technology and magic exist side-by-side. In the ...More...
    Mythic Incidents

    Publisher: Son of Oak Game StudioSometimes when things are bad people assume they can't get worse. Don't let them fool you. This product features incident reports, cases written ...More...
    The Dragon's Hoard #41

    Publisher: Legendary Games Magic, Monsters, and More!   The Dragon’s Hoard is a monthly anthology of magic items, spells, monsters, and more for your 5th Edition campaign! Each issue of The Dragon’s Hoard takes every new ...More...
    Fascinating Characters: Science Fiction Volume 6

    Publisher: Table 30 Press Crew of the INS Truculent (DD-C15) In the shadowy realm of the Imperial Solar Federation, a Grand Council of Nobles clash in a high-stakes game of ...More...
    The Murmuring Fountain (Black Flag Roleplaying)

    Publisher: Legendary GamesThe Raven Returns!   Sometimes a raven not just a raven, and those who have lost everything may do more than come a-gently tapping upon your chamber door. ...More...
    KoDT #311

    Publisher: Kenzer & Company This PDF features color KoDT strips and color throughout in the comic's NEW double-page format. 100 pagesPrice: $9.99 ...More...
    KoDT: Bundle of Trouble vol. 77

    Publisher: Kenzer & CompanyKnights of the Dinner Table: Bundle of Trouble volume 76 (PDF edition)This PDF is tablet optimized with embedded links (not only internal to the document but also to external ...More...
    Gamemaster's Guide to the Underground - over 1000 ideas for gaming in caves, caverns, and dungeons

    Publisher: MediaStream PressThis Guide is a helpful tool for Gamemasters who just need to fill in details and flavor for Dungeons and Underground Regions, without having to come ...More...