In Cthulhu Tales you take the role of unwilling inmates of a fictional 1920s asylum or sanatorium. Using the cards as both inspiration and guide, you'll take it in turns to make an accusation explaining why one of your fellow inmates, the Narrator, should be incarcerated.

The unfortunate Narrator then answers the accusation with their card-driven tale - choosing to either explain away the mysterious and sinister events, or perhaps having little choice but to reveal the secrets of the deeper horror that lurks just beyond the veil of reality.

As the Narrator attempts to refute the accusation of madness using Story cards, the other players disrupt the tale with Hazard cards, trying to force things to take a darker turn.