This page is devoted to custom Arkham Horror expansions. Please note that is not an archive of every piece of fan-created Arkham Horror material on the internet. Instead, it contains the components and expansions which I feel are of sufficient quality to warrant a place in my library. Where possible I have tried to give the relevant accreditation, but if I have missed anyone, please contact me so that I can credit your work.
Editorial Note: I have made minor adjustments to these some of these expansions, but have always tried to maintain the spirit in which they were designed.
These investigators are well designed and pay close attention to historical detail. A very simple addition which will help extend your game.
All the investigators are well thought out and this expansion even includes a chart so that you can check if you have the appropriate expansions to use a particular investigator. This is a very simple expansion which will take no time to construct but can add more diversity to your investigator pool.
Venture beyond the confines of New England to new lands and new worlds.
Can you solve the curious case of Charles Dexter Ward?
A big box expansion which explores many of the locales of the Miskatonic Valley that were not covered in Arkham Horror or its official expansions.
This material was all designed by Fantasy Flight Games and was made available either through their website or else via one of their special Arkham Nights Hallowe’en conventions.
A re-creation of the events of the story At the Mountains of Madness. An excellent place to start if you are looking for your first custom expansion.
A big box expansion focussing on the Dreamlands, Lovecraft’s dark fantasy dream world.
A faithful reproduction of the classic Call of Cthulhu scenario.
Underground canals and underworld cabals feature in this expansion based on The Horror at Red Hook.
Dare you investigate Tempest Mountain? An expansion based around the H.P. Lovecraft story, The Lurking Fear.
What terror lurks in the museum after dark? An expansion loosely based on Fantasy Flight Games’ Elder Sign dice game.
A big box expansion concerning Mi-go mining activity in the Vermont Hills, with particular attention to the H. P. Lovecraft classic, The Whisperer in Darkness.
- Ancient Ones
- Blessings of Nodens
- Common Items
- Exhibit Items
- Exhibit Whispers
- Heralds and Guardians
- Mythos Cards
- Unique Items
- Visions of Hypnos
- Odds and Ends
- Source Texts
Other Arkham Horror Sites
Histoires a Arkham (in French)
Horreur a Arkham (in French)
Spanish Arkham Horror Forums (in Spanish)
General Gaming Websites
Tric Trac (in French)