Unlike other Dungeon Crawl Classics, this volume does not present a completed adventure. Instead, it presents a set of DM tools that will make your job easier. This book of dungeon geomorphs gives you everything you need to map out exciting underground adventures. The geomorphs are modular map segments designed to be combined in a variety of ways. There are 124 map segments, encompassing mazes, dungeons, underdeep caverns, monstrous lairs, castles, ruins, halls, and many other intriguing places to explore. Together they combine to make thousands of possible maps!

Giants stalk the shifting sands as the lost city of Stylos awakens from its deathless slumber. The Fourth Age of Man is at hand! All that stands between the gigantic hordes of Stylos and their conquest of the world is your band of adventurers. Sinister traps, implacable foes, and the crushing tread of the dread Colossus all lurk within these pages, eager to test the courage and cunning of even the most accomplished adventurers.

Remember the golden days of role-playing, when adventures were underground, NPCs were there to be killed, and the finale of every dungeon was the dragon on the 20th level? Well, those days are back. Dungeon Crawl Classics feature bloody combat, intriguing dungeons, and no NPCs who aren’t meant to be killed. Each adventure is 100% good, solid dungeon crawl, with the monsters you know, the traps you fear, and the secret doors you know must be there somewhere. In Idylls of the Rat King, goblin bandits are once again attacking the silver caravans, killing innocent miners and stealing cargo. The goblins have taken up residence in an abandoned mine northwest of Silverton. Someone must get rid of them. But this is no ordinary abandoned mine. It was deliberately barricaded generations ago when the Gannu family, founders of Silverton, discovered an unspeakable evil on its lowest levels. And these are no ordinary goblins, for the curse of the Gannu family courses through their veins…

A whispered voice calls from a coffin bound in chains, urging the heroes into the depths of the Shudder Mountains, a place rife with superstition and forlorn secrets. In the shadowy, pine-grown valleys of the Deep Hollows lurk mysteries of a bygone age and a new evil emerging from the ruins of the past. The adventurers must plumb the mountains’ secluded reaches to root out this rising terror before its power comes to fruition. Standing in their path are cackling witches, subtle devils, lingering spirits, and a foul thing that moves in the night. Can the heroes appease that which lies within the Chained Coffin and thwart the dawn of a new and terrible age?

Far to the west, beyond civilized lands, lie the Tolomak Islands— volcanic peaks covered in pestilential jungle and bestriding sunken ruins. The legends say the Tolomaks are home to treacherous witches, ferocious cannibals, moon demons, and worse! Wise are those who steer well away from these accursed jungle isles, but not everyone is wise… For the legends also speak of power unimaginable and treasures beyond the limits of mortal avarice. Now, under the light of the triple moons, a band of intrepid adventurers sails ever nearer the islands. With luck, they will escape with a fortune; without it, they may not keep their souls.

Over the top low level dungeon takes you through the sewers to stop a blood worshiping madman his Kobold minions.

At the end of a forgotten back alley, in the weird and otherworldly marketplace of faiths known as the Bazaar of the Gods, stands the ruins of a forgotten chapel. Once the cult of the Carnifex was celebrated throughout the City of a Thousand Gates. But a band of holy warriors rose against the cult of executioners and torturers, casting down her signs and scattering her devotees to the winds. The fate of the cthonic goddess, and – more importantly – her fabled jewels remains a mystery…until this night. Set amid the sprawling decadence of Punjar, Jewels of the Carnifex offers low-level adventurers a chance to plumb the mysteries beneath the city’s soiled streets, explore forgotten crypts lavished with weird artifacts, and – for the quick and daring – claim the lost Jewels of the Carnifex!

For centuries, the Great Swamp has hidden hints of an ancient culture of barbarian kings. While passing through this miserable bog, the PCs encounter Stygoth the Damned, a half-dead black dragon driven mad by a mysterious disease. Delving further, the heroes discover that the disease is tied to the very swamp itself. A great corruption once infested this place, destroying the savage barbarian kings and leaving only mighty statues as their legacy. Now this corruption has returned, and a terrible Witch Queen is mining the corrupted swamp-earth to produce evil, blighted artifacts. In order to stop the spread of these evil weapons, the heroes must enter the ancient caves of the savage kings, put to rest the corrupt legacy of their downfall, end the disease that scars the land, and then face off against the Witch Queen herself.

Villagers have gone missing! A mix of clues, superstitions, and omens point to the brooding citadel of the emerald sorcerer. This silent monolith has sat undisturbed atop a windy ridge for centuries. Legends say that a green-skinned sorcerer dwells there, where he conducts strange experiments and builds enigmatic machinery. His green-skinned constructs patrol the grounds of his citadel, and he is seen only rarely when he ventures out on nefarious errands that end in horrid screams and strange lights coming from his citadel. Now it is time to penetrate his inner sanctum…

This adventure is intended for 2 to 3 3rd-level PCs originally from Lankhmar, but can easily be adjusted to accommodate adventurers from other locales. Guidelines are also provided for scaling the adventure for up to six PCs. The events of this adventure lure the party from their home in the City of the Black Toga to an abandoned watch tower on the coast of the Inner Sea, not far from Ool Hrusp. After completing this scenario, they may find reason to further adventure in the Forest Land.

Centuries past, Lady Ilse ascended to scion of House Liis by trading the archdevil Mammon what he wanted most: her immortal soul – and a diabolical betrothal. The triumph proved hollow, for every year on the eve of her fell covenant, she was beset by visions of Mammon and her foul promise. Seeking to save herself, she was buried alive, swaddled in the holy symbols of a dozen divergent faiths. This desperate ploy held Mammon at bay for centuries…but a devil can afford to wait a very long time. After hundreds of years, the last of the holy wards has fallen. The devil has come to collect his due. Tonight a storm crashes against the ancient manor house and forgotten spirits rise from the muck and mire. The fallen belfry tolls once more, announcing the hellish fete. As the adventurers arrive to explore the Black Manse, Mammon calls for his winsome bride. He will leave with a soul at the end of the night. The only question is: Whose?

Devilish sorcery and ancient steel merge in the form of a reborn menace rising in the wild hills on civilization's verge. As the badlands burn with wildfire, an arcane warlord gathers his monstrous troops under his tattered banner. He is rumored to be immortal, and it will take tremendous bravery, immense cunning, and more than a little luck for stalwart adventurers to end his campaign of malice. Can your mighty heroes locate the War-lock's one weakness before his forces drown the realm in blood and fire?

The Borderlands. An untamed wild region far flung from the comforts and protection of civilization. A lone fortified Keep is the only bastion of Good desperately striving to maintain the forces of Chaos at bay. But Evil is everywhere, lurking in dark caves, fetid swamps, forlorn forests. Bands of cutthroat brigands and ruthless tribes of humanoids eager to clash with the forces of Food rove the region. The Borderlands hold many secret wondrous locations, and opportunities for fame, prestige, and fortune are plentiful. But equally abundant are the perils, risks, and challenges to those brave enough to explore the wilds. Sharpen your swords and axes. Purchase your iron rations and tinderboxes. And Don't forget at least one 10-foot pole. Adventure awaits those with the mettle to confront Chaos in the Borderlands!

The city is gripped in fear! The Ripper has returned after a 125-year absence and is once again carving a trail of blood through the slums of Millers Court. Also returned is the ghost of Mari Kell, his last victim from more than a century ago, and she haunts the streets where she was killed. The city watch is at a loss to solve this supernatural mystery, much less apprehend the Ripper himself. All the clues point back to the hovel where Mari Kell was slain long ago. If the heroes are brave enough to enter, will they find the Ripper himself there?

The Lady in Blue, a mysterious figure of cosmic power, enlists a band of simple peasants for a strange task. They are to follow an invisible bridge until they arrive at a hole in the sky – and then jump through. Death awaits all but the bravest, strongest, and luckiest, but the Lady offers a reward beyond all the riches of the world: the chance to change the very stars these peasants were born under, and thus change their destiny.

Lady Elisabeth Pendour beseeches the heroes for their help. They must recover a key that was on her husband’s body when he perished trying to clear an ancient tower. The tower was once a coastal fortress, but now it lies in ruins, occupied by black-feathered rook harpies who worship a foul carrion crow demon. Lord Pendour sought to free his subjects from fear by clearing the rampaging rooks from their nests. But he failed, and unless the heroes can recover his body, the crow god will come for his wife, too…

Legend tells of a long-dead empire of sphinxes, ruled over for millennia by a great queen named Ankharet. She fell into darkness and her empire was shattered, as her subjects rebelled and cast her down. Unable to kill her, it is said that they bound her with great magic and buried her in a tomb, to wait for the foretold heroes who would be able to slay her and end her evil forever. Their empire in ashes, the sphinxes scattered to roam the world in bitter freedom, save a single great androsphinx. On the edge of the mysterious Barren Hills, between the mountains and the Great Desert, there is a gigantic statue of a crowned gynosphinx, ancient beyond reckoning. At its feet, a great androsphinx known as Khubsheth the Prophet has dispensed counsel and prophecy to all who come to him for longer than mortal records can tell. The heroes have come to visit Khubsheth, whether for counsel, prophecy or out of curiosity, but as soon as he lays eyes on them, he attacks! Upon his defeat, he tells them that they are the heroes foretold by the legend of Ankharet. Ankharet ruled over a long-dead empire of sphinxes, but she fell into darkness. Her subjects rebelled and cast her down, but were unable to kill her. It is said that they bound her with great magic and buried her in a tomb, to wait for the foretold heroes who would be able to slay her and end her evil forever. Kubsheth the Prophet tells the heroes that they must enter the tomb of the long-dead sphinx queen, kill her, and destroy her cursed crown, an artifact of tremendously evil power. As his blood seeps into the sands, a doorway opens at the base of the statue, leading down into darkness…

The cries of battle echo in the rustic wilderness, as a pair of fey sisters defend the ancient Briarwood against invaders. When the town of Bur Hollow sends militia men to support their fey allies, they disappear without a trace. The adventurers must enter the Briarwood and save them!

When the Purple Planet began its slow decline, factions arose to vie for the final resources of the dying world. In the days of the Last Wars, the Ascendant Masters used their knowledge of cybernetics and genetic engineering to create increasingly powerful and grotesque biological weapons. One such weapon was Sotark the Destroyer of the long lost House Memniscene. Damaged and placed in a cryogenic regeneration capsule, Sotark has slept away the ages while the House above him eroded away under the weirdling sun. Over time, the capsule has failed, but still Sotark sleeps on, diminished, but not destroyed.

Centuries ago, the glitterdoom came to the dwarves of Steelhand Clan! This divine curse transformed the dwarves into hellish forms with an insatiable greed for gold. Now, a chance encounter breaks open long-sealed gates to unleash the glitterdoom again. Can your adventurers delve into the forgotten halls to confront the subterranean menace? Work together to clear the abandoned mine of it's undead hosts and retrieve what gold and treasures you can.