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The cruel and dark heart of the Cthulhu Eternal system lies in its free/open rulesets. Each is a fully self-contained set of game mechanics, tailored to Cthulhu-infused tabletop RPG sessions set in a specific era, whether past, future, or fictional. The rulesets are each embodied in a “System Reference Document (SRD) which describes the rules for creating characters, putting them in harms way, and perhaps even allowing them to live to tell of their harrowing experiences.
Each SRD is a PDF of approximately 100 pages, the contents of which are fully Open Content and released under the (Wizards of the Coast) OGL. That means you can use the material in any way you wish, whether it’s simply using the rules as written to run a scenario of your own devising, or borrowing substantial parts of the game mechanics (or the whole thing!) to form a platform for a brand new RPG you want to build.
Open Rules for Modern-Day SettingsEach SRD is a PDF of approximately 100 pages, the contents of which are fully Open Content and released under the (Wizards of the Coast) OGL. That means you can use the material in any way you wish, whether it’s simply using the rules as written to run a scenario of your own devising, or borrowing substantial parts of the game mechanics (or the whole thing!) to form a platform for a brand new RPG you want to build.
Open Rules for Post-Apocalyptic Settings
Open Rules for Historical Settings
.. Resources for Cold War Cthulhu Eternal
.. Resources for World War II Cthulhu Eternal
.. Resources for Jazz Age Cthulhu Eternal
.. Resources for Victorian Era Cthulhu Eternal
.. Resources for Age of Revolutions Cthulhu Eternal
.. Resources for Medieval Cthulhu Eternal
