An ancient cave, defended by ancient death traps and weird arcane seals conceals the antediluvian vault of an archlich whose reign predates recorded history. Undisturbed for untold eons, the vault now stirs thanks to the machinations of cultists who have meddled with secrets best left undisturbed... This module sends the heroes to an ancient cave occupied by cultists dedicated to the Mists of Madness. Defended by ancient death traps and weird arcane seals, the caves conceal an antediluvian vault, the resting place of an archlich whose reign predates recorded history in the Known Realms. Undisturbed for untold eons, now the machinations of the cultists and their eladrin master threaten to awaken the archlich, to dire ends that none can predict.

Once every decade, the tides of the Empyrean Ocean recede far enough to reveal the highest eaves of a mysterious undersea tower. Long ago this was an eldritch fastness of Sezrekan the Elder, the most wicked wizard ever to plague the Known World, but now the tower is known simply as the final resting place of the fabled Black Pearl – an artifact rumored to bring doom upon all who dare to posses it. Tonight the moon nearly fills the sky, and the tides have already begun to recede. Adventurers have eight short hours to explore the tower before the dark waters return. The fabled Black Pearl will be theirs for the taking…if they can survive the Pearl’s curse.

Many centuries ago, a band of paladins fell from grace. These blackguards were defeated after a great battle and their grim fortress, the Iron Tower, was razed. A small abbey was established near the ruins, where generations of monks mixed ancient eldritch wards, mighty clockwork traps, and multiple fail safes to build the Iron Crypt of the Heretics. Three mighty vaults ensured that its evils would be sealed for all eternity. But unbeknownst to the brotherhood, their impregnable crypt had a single weakness: the very monks that had built it, for they knew its secrets. When a devourer stole into their abbey, the profane beast forced the monks to help it inside the Iron Crypt. It successfully broke into the first of three vaults, releasing an army of wights. The story of the devourer and his wight army is told in Dungeon Crawl Classics #12: The Blackguard’s Revenge. Now, in the Iron Crypt of the Heretics, the heroes must venture into a crypt designed by the world’s greatest thieves, magicians, and seers, solve its puzzles and deadly traps, and seal it once more from the outside world.

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

Heroes and blackguards of every stripe will find peril on the Purple Planet, but none more than 0-level PCs. Cast across the cosmos, surrounded by hordes of baying man-beasts, and marched into mass gladiatorial combat, the PCs' death waits with bated breath. Their sole hope for escape lies – not in pitched combat against endless hordes – but by braving the unknown and pressing into the darkness beneath the Purple Planet.

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?

At the mercy of Chaos! Abducted by the Court of Chaos, the adventurers face hard choices if they want to return home. The Host of Chaos desires a legendary artifact held by the Scions of Law and need patsies to retrieve it. Faced with an eternity of servitude, the party must sneak into the Plane of Law and steal the Yokeless Egg from under its guardians’ watch. But not all is what it appears when the Court of Chaos is concerned and serving the Host may destroy the party from within. Can they survive the Intrigue At the Court of Chaos?

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!

Eons past the fabled sorcerer-kings of Parhok perished in a rain of eldritch fire. But legends hold that one tribe survived the apocalypse, fleeing with their slaves to a hidden city, where the greatest enchanters of all time could sleep away the centuries, and awaken in a future age as rulers of a ruined land. Now once more the forbidden spells of the Parhok threaten the good folk of the Known Realms. A kingdom lies ensorcelled, a royal family ensnared by the forgotten dweomers of a long-dead race. When the best attempts of seers and diviners have failed, it falls to the heroes to save the kingdom. Have the sorcerer-kings risen to reclaim their bejeweled thrones? Or has a more sinister power bent their ancient magics to its sinister will? Only the most courageous and cunning of heroes will emerge victorious from Dragora’s Dungeon.

Discovering a once-hidden passage in the Purple Planet’s Ancestor Peaks, the PCs enter the tomb of the Immortal Kahl. The party must survive deadly chambers fraught with alien life and technologies while unraveling the tomb’s mysteries. Ultimately, the party faces a choice unlike any encountered before, and a reward which will change them forever.

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?

This new version of the classic adventure is completely updated to 3.5 edition. In The Lost Vault of Tsathzar Rho, a defenseless village asks the characters to slay an out-of-control ogre. Sounds easy enough. But the ogre, who used to be nothing more than a nuisance, has become crazed and psychotic. When the characters arrive at its cave, they find a subterranean portal has connected the cave to a much larger underground complex. Something in that complex has transformed the ogre and many other local creatures into fiendish marauders. In fact, it’s the lost vault of Tsathzar Rho, an ancient wizard and prophet of the Outer Gods, who are gathering their foul minions for battle.

The small town of Welwyn has been beset by a string of robberies. The heroes are led to the natural cave system located at the bottom of the town well, which they must explore to find the burglars. But once they’re in the cave system, things get much more difficult! The “burglars” turn out to be mere pawns in a much darker game. To get to the source of the crimes, the heroes must shrink themselves with potions of improved reduce person and explore a series of dangerous rat warrens where their prey is larger than they are!

While investigating rumors of a dangerous blue dragon wreaking havoc in the deep desert, the heroes tumble under the sands into the magically sealed dome of an ancient palace. The temporarily weakened dome reseals above them, and they are left to explore the golden palace of Zahadran, once seat of power for the legendary Caliph Ardishir the Magnificent. But the dome is weak because it has been assaulted by the mythical storm demon Azi Dahaka and his trapped minions, evil creatures that were sealed under the magical dome to keep them from ravaging an unsuspecting world.

During a brief stop-over at a wilderness stronghold, a simple trip to a local provisioner reveals foul play! The shop has been broken in, and the shopkeeper is missing. But the place has not been burglarized. The heroes are thrust into an investigation. Clues discovered by the heroes’ hint at larger corruption that festers among the border lands surounding the stronghold. What sinister forces lurk beneath the keep?

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…

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!

It has been years since the last virgin was sacrificed: and now the pit beast awakens once more! Every generation it stumbles forth on undulating tentacles from its resting place deep below the great ravine, its towering blubbery mass ravaging the land before returning to slumber for decades. But this time is different. The Great Beast strikes with intelligence: bands of faceless gray-robed men emerge from the tenebrous depths, herding the beast’s roaming tentacles before them. The enigmatic people of the pit live despite the passage of ages! The earth shakes each night as they herd the primordial tentacles ever further, while the villagers ask: is any man brave enough to put the sword to this menace?

Originally designed as a convention module, this adventure sends the heroes into the underdark to do battle against the mysterious denizens of the deep! A drow housemistress commissions the characters to acquire a mysterious weapon known to be in the hands of her dark elf enemies. Locating, identifying, and acquiring the magical weapon leads the heroes on a great trek across the underdeep, where they must battle svirfneblin, a powerful lich, and enemy drow. This adventure us specifically designed for play by drow characters, but can be used with any adventuring party. Pregenerated drow characters are included.