Arkham Horror is great, but it takes a long time to set-up and play. Elder Sign keeps the Cthulhu theme (investigators vs. ancient gods) and cooperative gameplay and turns it into a dice game for up to eight players.
From the Manufacturer
Gilman felt that the twilight abysses around him were those of the fourth dimension. Those organic entities whose motions seemed least flagrantly irrelevant and unmotivated were probably projections of life-forms from our own planet, including human beings. What the others were in their own dimensional sphere or spheres he dared not try to think. -H.P. Lovecraft, "The Dreams in the Witch House" Elder Sign lets players control investigators who must successfully endure adventures within the museum in order to gather clues, items, and the eldritch knowledge they need to seal the rifts between dimensions and prevent the Ancient One's arrival. A clever and thematic dice mechanic pits their exploration against monsters and the sheer difficulty of staying sane and healthy while investigating the most dangerous exhibits and most terrifying instances of insanity. Elder Sign recreates the Lovecraftian thrills of eerie suspense and mind-numbing horrors in a cooperative game players can finish in one to two hours. Rules, card text, and innovative dice mechanics expertly designed by Richard Launius and Kevin Wilson, the designers of Arkham Horror, all blend in a game that's quick to learn, quick to play, strategic enough to reward frequent replay, and eccentric enough to immerse players in the museum's supernatural intrigue.
Elder Sign is a fast-paced, cooperative dice game of supernatural intrigue for one to eight players by Richard Launius and Kevin Wilson, the designers of Arkham Horror. Players take the roles of investigators racing against time to stave off the imminent return of the Ancient One. Armed with tools, allies, and occult knowledge, investigators must put their sanity and stamina to the test as they adventure to locate Elder Signs, the eldritch symbols used to seal away the Ancient Ones and win the game.