It began with murder most foul. Two families of prestige, power, and influence. A shadowy group of zealots and an addled troupe of entertainers. At the center of it all, a masked figure intent on bringing a forbidden play, The...

A cursed play from an infamous playwright sows disaster wherever it appears. It has surfaced in the ancient city of Tiarazan to spread its malignant influence like the plague. Enemies seen and unseen oppose the characters and seek to forever...

Sandy Petersen’s Cthulhu Mythos is the most comprehensive guide to including Lovecraftian elements in your Roleplaying game, written by Sandy Petersen, the author of the groundbreaking Call of Cthulhu role-playing game. This massive tome contains over 100 monster stat blocks,...

In the fourth and final Act of Big Sleep, Lullaby, Tsathoggua’s rampage continues unchecked. Your heroes must delve deep into the caverns whence the Great Old One emerged. Here, you encounter ancient subterranean civilizations and primordial beasts. As you make your...

In Act 3: The Fate of the Empire, you and your heroes now seek assistance from the mountain kingdom of Lorenz, but King Leo proves troublesome indeed. He demands your heroes lead an expedition to the cultists’ hollow mountain. Unfortunately, his...

In Act 2: The Doomed World, you and your allies have temporarily escaped some of the worst effects of Tsathoggua’s rising, but now the Great Old One walks the surface world. What do the Sleeper’s demented cultists seek? You follow a...

In Act 1: The Sleeper Rising, you and your fellow heroes are caught between the religious police and a cabal of hidden cultists. Recruited by the king of Axphain, you must begin to root out the cultists. You discover a network...

In the fourth and final Act of Dark Worlds, The Green Pyramid, the time has come at last to take the fight to the dread Mi-Go; the Fungi from Yuggoth. Returning to Yuggoth, you find that the Fungi have not...

The Zepzeg Cycle, you are brought to Yuggoth’s moon Thog, where you learn of the existence of the Zepzeg – a spacefaring alien species in many ways the antithesis of the Mi-Go. Plus, you learn of a lost colony of...

In Nithon, you traverse the Radiation Wastes of Yuggoth, encounter creatures and hazards from nightmare as you seek the Forest and City of Nithon. Here lies the Green Pyramid of the Watcher. The Pyramid awakens before your eyes, and you...

In Dark Worlds, the new Cthulhu Mythos for 5e campaign, You and your friends become unwitting pawns caught up in the blunders of a mad ruler. His insane attempt to curry favor with the dread Fungi from Yuggoth results in...

With their enemies on the defensive, the heroes must try to knock both the Yithians and the Elder Things out of the war. But can they successfully campaign against entities who are wiser and more intelligent than even the smartest...

The heroes are on the offensive, trying to undermine the ancients’ plans, but they can’t do it here – they must travel to the dreamlands to find new allies. But this is not all. Their ally, the mummified cat Dandelion,...

Captured by the serpent folk, the heroes find an unlikely ally – a mummified-yet-living being from the distant past. Cut off from the outside world, and stranded in the wilderness of Yilan, the heroes must rely on wit & grit...

Yig Snake Granddaddy is an amazing campaign in which evil serpent folk seek to bring back prehistoric times, complete with pterodactyls, dinosaurs, and other monstrous beings. In Land Out of Time, the first act of four, your player characters adventure...

Released as part of the 40th anniversary of Call of Cthulhu, this handy pocketbook is aimed at anyone—whether veteran or novice—who plays this well-loved tabletop game, but is particularly aimed at those who run games and potentially craft their own...

Cthulhu Wars: Duel - Extinction is a fast-moving two player strategy game in which you play as The Sleeper, primordial god of slumber and hunger or Ithaqua, the Windwalker, god of outer space and all that is coldest and darkest....