chthulhudothe hideously maddening game from World of Lovecraft:

yog sothoth beyond the mountains of madness with the indescribable terror

—the winged fungus-beings in the outer dimensions with the unspeakable grimoire

—the crawling chaos at your study door with the aarrgh — !

(concept courtesy AL EWING and some foax playin the arkham horror rpg at the pembury last night)