Arkham has more secrets than any one investigation can uncover…

The Arkham Mysteries Expansion for the Arkham Horror Roleplaying Game expands your descent into cosmic terror with new scenarios, unsettling encounters, and tools for crafting even darker tales. Whether you’re a seasoned Keeper or a returning investigator, this expansion deepens the narrative possibilities and raises the stakes in every session.

Unravel fresh mysteries across the shadowed streets of Arkham, where every clue leads closer to truths best left buried. Strange cults, forbidden rituals, and entities beyond comprehension await—testing not only your skill, but your sanity.

Expansion Features:

• New investigative scenarios filled with branching outcomes

• Additional locations, NPCs, and story hooks within Arkham

• Expanded tools for Keepers to build custom mysteries

• New threats, horrors, and challenges to confront

• Seamless integration with the Core Rulebook

  
  

Each case adds another thread to the tapestry of dread, weaving a world where no answer comes without consequence.

At the Grand Adventurers Club, we’ve long suspected Arkham holds more mysteries than maps can chart… and some are eager to be found.