d100

Ride Europe’s most infamous rails in Horror on the Orient Express, a prestige Call of Cthulhu campaign of luxury, dread, and relentless pursuit.

Reign of Terror is a two-part historical Call of Cthulhu campaign set amid the French Revolution, blending political upheaval with Mythos horror.

Down Darker Trails is a Call of Cthulhu setting book that brings cosmic horror to the mythic Old West. Also includes two complete scenarios: Scanlon’s Daughter & Something From Down There

Mansions of Madness Vol. 1 is a collection of five Call of Cthulhu scenarios about haunted houses, dark secrets, and cosmic horror, perfect for Keepers seeking ready-to-play adventures.

Sea and Salt is a free Age of Vikings TTRPG one-shot by Don Ford. Explore folklore, horror, and fate in a 2–3 hour Viking-era adventure.

The Call of Cthulhu Starter Set is the perfect introduction to the world’s greatest horror role-playing game. Packed with rules, dice, and classic adventures.

Explore Berlin’s seedy underworld between wars. Dive into sin, secrets, and sanity-shattering horror in three decadent Mythos adventures set in 1920s Germany.

A collection of seven complete RuneQuest adventures, plus setting material, maps, and encounter tools. Designed for flexible use in Glorantha campaigns.

A globe-spanning, apocalyptic campaign of horror and mystery. Unravel cult plots, face cosmic threats, and save the world. If you can survive the madness.

Step into Glorantha’s Bronze Age with this all-in-one box set. Create heroes, explore cults, and dive into mythic adventures. No experience needed, everything’s included!

Three epic scenarios set in Colymar lands where duty, mystery, and myth intertwine. From cattle raids to ancient dragons, forge your legend among the people of Sartar.

Begin your mythic journey through Glorantha with this epic bundle of rules, adventures, cults, creatures, and powerful magic, all for less than the price of a bronze broadsword.

The Age of Vikings Core Rulebook is your complete BRP/d100 guide to mythic Iceland. Start playing today with magic, settings, a bestiary, and sample adventure from Chaosium.

Strange misfortunes plague a quiet farm. Can your heroes uncover the truth and face the wrath of a risen draugur? A dark, story-driven mystery set in mythic Iceland.

Dead Light is a short, encounter-based scenario for Call of Cthulhu, set in the Arkham countryside during the 1920s.

An invitation leads to a strange house, a haunting presence, and a descent into Dreamlands horror in this gaslight-era one-shot.

A free introductory Call of Cthulhu one-shot. Shipwrecked on Beacon Island, investigators find terror in the dark. Designed for quick play with minimal prep.

Investigators are hired to discover the truth about the Corbitt House in this legendary introductory scenario for Call of Cthulhu 7e, celebrated by Keepers and Investigators for years.

Master mind-shattering horror in this 40th anniversary edition of the Keeper Rulebook. Everything needed to run Call of Cthulhu 7e: rules, Mythos lore, monsters, magic, and adventures.

Start your investigation with the core rulebooks.

A haunted chariot from Glorantha’s violent past terrorizes a quiet village. Will your adventurers uncover the truth and lay the spirit to rest or be crushed beneath its bronze wheels?

Ride Europe’s most infamous rails in Horror on the Orient Express, a prestige Call of Cthulhu campaign of luxury, dread, and relentless pursuit.

Reign of Terror is a two-part historical Call of Cthulhu campaign set amid the French Revolution, blending political upheaval with Mythos horror.

The Basic Roleplaying SRD is the official Basic Roleplaying SRD, a universal d100 rules engine for your campaigns. Build worlds fast with the Basic Roleplaying SRD’s streamlined core.

Down Darker Trails is a Call of Cthulhu setting book that brings cosmic horror to the mythic Old West. Also includes two complete scenarios: Scanlon’s Daughter & Something From Down There

Mansions of Madness Vol. 1 is a collection of five Call of Cthulhu scenarios about haunted houses, dark secrets, and cosmic horror, perfect for Keepers seeking ready-to-play adventures.

Sea and Salt is a free Age of Vikings TTRPG one-shot by Don Ford. Explore folklore, horror, and fate in a 2–3 hour Viking-era adventure.

Explore five solo Call of Cthulhu adventures in the Alone Against the World Bundle. Face cosmic horror in Flames, Dark, Frost, Tide, and Static without a Keeper.

Face unspeakable horror in the Black Hills with Alone Against the Static, a 1990s Call of Cthulhu solo adventure beyond signal range.

The Call of Cthulhu Starter Set is the perfect introduction to the world’s greatest horror role-playing game. Packed with rules, dice, and classic adventures.

Explore Berlin’s seedy underworld between wars. Dive into sin, secrets, and sanity-shattering horror in three decadent Mythos adventures set in 1920s Germany.

Award-winning RuneQuest sourcebook Lands of Dragon Pass brings Glorantha’s heartland to life for Game Masters and adventurers.

A collection of seven complete RuneQuest adventures, plus setting material, maps, and encounter tools. Designed for flexible use in Glorantha campaigns.

A globe-spanning, apocalyptic campaign of horror and mystery. Unravel cult plots, face cosmic threats, and save the world. If you can survive the madness.

Survive a post-apocalyptic wasteland haunted by cosmic horror. Use this open SRD to run bleak one-shots or full campaigns inspired by Lovecraftian end-times.

Explore the mythic world of Glorantha, home to demigods, ancient empires, and magical warfare. A deep dive into its mythology, races, and history, perfect for lore-focused adventurers.

Arm your adventurers with Gloranthan steel and magic. This comprehensive guide equips you with gear, mounts, trade rules, and mystical artifacts for RuneQuest: Roleplaying in Glorantha.

Step into Glorantha’s Bronze Age with this all-in-one box set. Create heroes, explore cults, and dive into mythic adventures. No experience needed, everything’s included!

Three epic scenarios set in Colymar lands where duty, mystery, and myth intertwine. From cattle raids to ancient dragons, forge your legend among the people of Sartar.

Investigate cosmic horror across time: play Cthulhu in the Dark Ages, Victorian London, Ancient Rome, the Future, and beyond with this system-bridging sourcebook for every era.

Begin your mythic journey through Glorantha with this epic bundle of rules, adventures, cults, creatures, and powerful magic, all for less than the price of a bronze broadsword.

The Age of Vikings Core Rulebook is your complete BRP/d100 guide to mythic Iceland. Start playing today with magic, settings, a bestiary, and sample adventure from Chaosium.

Strange misfortunes plague a quiet farm. Can your heroes uncover the truth and face the wrath of a risen draugur? A dark, story-driven mystery set in mythic Iceland.

Dead Light is a short, encounter-based scenario for Call of Cthulhu, set in the Arkham countryside during the 1920s.

An invitation leads to a strange house, a haunting presence, and a descent into Dreamlands horror in this gaslight-era one-shot.

A free introductory Call of Cthulhu one-shot. Shipwrecked on Beacon Island, investigators find terror in the dark. Designed for quick play with minimal prep.

Investigators are hired to discover the truth about the Corbitt House in this legendary introductory scenario for Call of Cthulhu 7e, celebrated by Keepers and Investigators for years.

Uncover Mythos horror in the year 1000 AD. This standalone Call of Cthulhu variant takes investigators into the medieval past, where ignorance offers no protection from ancient terror.

Punch evil cultists, leap from burning zeppelins, and defy the Mythos with grit and guns. Add this supplement to any 7e campaign to shift the tone toward high-stakes, fast-paced adventure.

Basic Roleplaying: Universal Game Engine (BRP) is Chaosium’s d100 core rulebook for any genre. Run flexible, modular campaigns with powers, combat, and Game Master tools.

Master mind-shattering horror in this 40th anniversary edition of the Keeper Rulebook. Everything needed to run Call of Cthulhu 7e: rules, Mythos lore, monsters, magic, and adventures.

Meet gods, monsters, spirits, and sentient races of myth in this essential bestiary for RuneQuest. From Chaos horrors to talking baboons, these creatures shape the world of Glorantha.

Glorantha is alive with gods, magic, and mythic history. This richly illustrated guide brings the setting to life from Rune cults and Hero Wars to ducks, trolls, and werewolves.

Harness over 550 Mythos spells of forbidden power in this eldritch tome. A definitive source of magic for Call of Cthulhu 7e, featuring Deeper Magic, Dreamlands rites, and sorcerous secrets.

Start your investigation with the core rulebooks.

Investigate Esbury’s eerie mysteries in Alone Against the Tide, a Call of Cthulhu solo adventure where your choices shape fate.

This essential guide for Call of Cthulhu players allows you to create compelling characters and explore the 1920s. It includes expanded rules, occupations, skills, equipment, and historical context.

This two-volume collection is packed with ideas, concepts, and insights to immerse your scenarios and campaigns deep in the heart of the Cthulhu Mythos.

Begin your journey into Call of Cthulhu with Alone Against the Flames, a solo horror adventure that teaches the rules as you play.

Explore the twisted history of Arkham, Massachusetts: home to Miskatonic University and secrets best left buried. A richly detailed setting guide for Call of Cthulhu 7e campaigns.

Travel the globe in Alone Against the Dark, a Call of Cthulhu solo campaign of mystery, survival, and cosmic horror.

Brave Canada’s frozen wilderness in Alone Against the Frost, a Call of Cthulhu solo adventure of survival, sanity, and the horrors of the Mythos.

Explore Cthulhu’s worshippers through time with this definitive guide. Create your own cults, unravel conspiracies, and run three dark scenarios for Call of Cthulhu 7e.

Explore Glorantha’s mythic Bronze Age with this streamlined introduction to RuneQuest. The Basic Rules give you everything needed to create adventurers, cast magic, and fight for your gods.

Play Call of Cthulhu for the first time with this Quick-Start Rules guide.

A haunted chariot from Glorantha’s violent past terrorizes a quiet village. Will your adventurers uncover the truth and lay the spirit to rest or be crushed beneath its bronze wheels?