Arkham Horror RPG: Arkham Mysteries

Arkham Mysteries is a collection of three standalone adventures for the Arkham Horror Roleplaying Game, each dropping investigators into a distinct corner of Arkham's darkness. Whether you're running a one-shot or slotting these into an ongoing campaign, each tale is self-contained and ready to play.

The three adventures span 96 pages of mystery and danger:

• The Ophidian's Nightmare — something sinister stirs in the darkened halls of the Miskatonic Museum
• One For The Road — the latest supply of hooch is making people sick, and the investigators must trace a mysterious disease to its source
• The Thricefold Power — occult knowledge has been bestowed upon the initiated, and a dangerous power must be stopped

Two double-sided poster maps are also included.

What's good?

• Three complete, varied adventures in one book — great value for Keepers
• Each adventure is self-contained — easy to drop into any campaign or run as a one-shot
• Covers a range of tones: museum horror, street-level mystery, and occult conspiracy
• Includes two double-sided poster maps for immersive play

Who is it for?

• ✔ Keepers looking for ready-to-run adventures without heavy prep
• ✔ Groups who want variety — three distinct mysteries in one purchase
• ✔ Campaigns needing flexible, drop-in content
• ✖ Not a standalone game — requires the Arkham Horror RPG Core Rulebook

⚠️ Expansion — requires the Arkham Horror RPG Core Rulebook to play.

Pair with: Arkham Horror RPG — browse all supplements, sourcebooks, and adventures.