ArkhamDark for Shadowdark RPG

Old School Mythos Roleplaying

Step into the shadowed streets of the 1920s, a world teetering on the brink of cosmic horror. Arkham Dark plunges you into the heart of Lovecraft's chilling Mythos, where sanity is a fragile shield against the unspeakable. Designed as a variant for the Shadowdark RPG, this game amplifies the pulp horror, psychological dread, and socio-economic realities of a bygone era.

• Forget traditional classes; choose from detailed Professions like the Antiquarian, Doctor, or Federal Agent, each with unique Skill Aptitudes that define your expertise in a world where knowledge can be as dangerous as any monster.
• Navigate intricate Downtime activities, from high-society galas to illicit underworld dealings, all while managing a new Sanity System that tracks your descent into madness.
• Uncover forbidden Lovecraftian Magic, wield period-appropriate Weapons & Armor, and confront a terrifying Mythos Bestiary of creatures from beyond space and time.

Every discovery, every decision, every brush with the eldritch will test your limits and shape your fate. Do you have the courage--or the madness--to face what lurks in the dark? The whispers have begun. Will you answer the call?

Adapted for Fantasy Grounds by:  Kevin Heffernan

Owned by Old Troll Gaming Hole. Copyright (C) 2026. Used with permission. All rights reserved.

Released on November 04, 2025

Designed for Fantasy Grounds version 4.7.1 and higher.