The world stands on the edge of the abyss. The year is 1926, an ancient being of incomprehensible power stirs in its eons-long sleep and brings death and madness upon mankind. Blasphemous cults and unspeakable monsters are wreaking havoc all over the world, the fabric of reality threatens to tear apart and gates open to bizarre worlds. Only a handful of intrepid investigators have the courage to fathom the mysteries of the Great Old Ones. Their task is to explore the most remote corners of the Earth, face nightmarish creatures and solve the mystery of Eldritch Horror.

Eldritch Horror is a cooperative game about adventure and unspeakable horrors, in which 1 to 8 players take on the role of investigators traveling across the world. They try to solve puzzles, gather clues, and protect the world from a "Great Old One" - an elder being who has only total destruction in mind. Each "Great Old One" brings unique myth and research card sets to the game that let players delve deeper into what they know about these doom-worthy creatures. Twelve investigators, 250 game markers, and over 300 cards ensure that Eldritch Horror is an epic, world-spanning adventure with every game.