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

  • Chaosium Unveiled: No Time to Scream - Three Evenings of Nightmare
    Chaosium Unveiled looks inside No Time to Scream - Three Evenings of...
  • No Time to Scream | Chaosium Unveiled
    {description} This video unveils No Time to Scream. Get your...
  • Chaosium Community Corner Interviews with Bridgett: Rina Haenze
    Our community manager Bridgett Jeffries is interviewing GMs from our Cult...
  • Episode 05 - The Order of the Stone | Call of Cthlhu
    {description} The Stream of Chaos is playing The Order of...
  • Late Pledge open for Studio Agate's 'The Price of Arrogance' 7th Sea Campaign

    The Price of Arrogance is the official campaign for the...

    • Latest Suppliments

    Type SA Solomani Free Trader

    Publisher: MongooseThe Sundowner-class is a 400-dTon Free Trader. Identified as the Type SA, it carries cargo and passengers between the member-states and solitary worlds of the Solomani Confederation. ...More...
    The Noodle Ancestry

    Publisher: PaizoExperience the Noodle, a mysterious dragonlike creature that can be played as a whimsical companion or a malevolent trickster.This unique Pathfinder Second Edition ancestry will bring a ...More...
    A Catalogue of Relics of Power

    Publisher: Tabletop Journeys, LLCFrom the Desk of the Most High Cleric, Arthur Thel-am-Rajai, noted traveler & scholar, comes a list of magic items built for your table! The Catalogue ...More...
    Aegen World Maps: Sunner Hinterland [BUNDLE]

    Publisher: Aegen Gaming Systems This special bundle product contains the following titles. Aegen World Maps: Cold Climate Coastal Islands - Dauda HijodRegular price: 0Bundle price: 0Format: ZIP File Fantasy World – Cold Climate Coastal ...More...
    Creature Creation: Hobgoblin

    Publisher: Wytchin HourWith Creature Creation: Hobgoblin, you can craft cunning and disciplined foes that challenge your players’ wits and courage, turning every encounter into a thrilling test of ...More...
    Paper Terrain_Castle Wall

    Publisher: Papersmith WorkshopThis is a paper model for TRPG and wargame! Easy to build: only knife, glue, ruler and cutting mat are required Ready to print: download the PDF then print the file  Enjoy!Price: $3.00 ...More...
    Aegen World Maps: Cold Climate Coastal Islands - Glatadur Torfraflojot

    Publisher: Aegen Gaming SystemsFantasy World – Cold Climate Coastal Islands - Glatadur Torfraflojot Alternative Campaign Setting Mystical islands steeped in magic and strange events locked in the icy coastline, with ...More...
    Töreboda - village

    Publisher: Free League PublishingThis document was based on the foundation of the Lubnice village description. I had a conversation with Tony S. on Facebook in the Twilight:2000 Free League ...More...
    Tian Xia - Dihyang: Recipes for Adventure
    Publisher: PaizoRECIPES FOR ADVENTURE 10 thrilling quest hooks inspired by Indonesian cuisine and ingredients! The Dihyang Project consists of 14 Indonesians with hopes and dreams to share our history, myths, ...More...
    Codex Magica VI - New Magic Items for OSR and Shadowdark

    Publisher: Wandering MageCodex Magica, volume six, contains 24 NEW magic items for your Old School (OSR) TTRPG of choice! Inside you'll find: Five pieces of magical armor Five fascinating wondrous ...More...