Boardgamegeek https://boardgamegeek.com/boardgame/122159/cthulhu-fluxx
English - Explore the dark and horrifying mysteries of the unknown as you battle insanity and fiendish cults in Cthulhu Fluxx! Follow the wild-eyed Poet, the obsessed Artist, and the expeditions of the Professor as they investigate Eldritch Secrets no mortal was meant to discover.
Ludovox http://ludovox.fr/jeu-de-societe/cthulhu-fluxx-6501/
French - Un jeu de Keith Baker.