The Mythos Module is a NoMaNoGe official genre module that centers around supernatural horror in the vein of the 'Cthulhu Mythos' and similar works. Players take the role of investigators who try to uncover the unknowable truths behind our reality and reach much further still.
It relies on the Core module with Fatality and slightly expands the ruleset to add mechanics around the player character's inevitable descent into madness.