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Cthulhu Deep Green
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Cthulhu Deep Green

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From now through November 30th, this digital title has been marked down for the Black Friday/Cyber Monday weekend! For more savings, visit our Black Friday/Cyber Monday page.

Building upon the groundwork set out in Cthulhu Dark by Graham Walmsley, Cthulhu Deep Green contains a modified rules set for playing as Agents of The Conspiracy: a shadowy government agency tasked with concealing evidence of the supernatural.

This 52 page PDF contains all the basic rules you’ll need to play,  Handler’s advice for running your own scenarios, and tables to help inspire play. Playable with three to six players with sessions lasting two to four hours.

Also included: Food of the Gods, a fully realized scenario set in the Seattle underground dining scene. 

With a focus on quick setup and improvisational campaign play, the rules of Cthulhu Deep Green are designed to focus the human element while keeping the action tense and dramatic.

What will your agent give up to protect the public from terrors beyond sense or reason?

Pick up your phone and report in.


Author's Notes

This material has a general content warning for depictions and allusions to violence and psychological manipulation. Unlike similar games, CDG steps away from references to sanity and insanity but it does deal with stress related dysfunction and issues of work-life balance. I reserve the right to update these files periodically with new material. Follow my account for updates.



The fictional premise of CDG is heavily inspired by various elements of the Call of Cthulhu roleplaying game, published by Chaosium, as well as Delta Green, by Arc Dream Publishing. I encourage you to check out and support both games!

And, as stated above, CDG is a hack of Cthulhu Dark by Graham Walmsley designed with the intent to expand the fictional scope and allow for more direct campaign play. You can support Graham on DriveThru right here!

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June 29th, 2020
This is a great hack of Graham Walmsley's "Cthulhu Dark" by way of Delta Green. Ford manages to take what's most essential to telling a great Delta Green story and mash it up with the Walmsley's ultra-light game of Mythos inves [...]
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File Last Updated:
August 20, 2020
This title was added to our catalog on November 29, 2019.
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