Beneath the crumbling walls of a keep lies an unexplored warren of caverns stretching into unknown darkness. Within the depths, an ancient evil stirs and grows hungry. Forgotten horrors, once relegated to legend, are on the move – with only your band of heroes between them and their goal. What begins as simple exploration rapidly becomes a struggle against denizens of the underworld, and the very environs of underworld itself. Through crumbling caverns and against long-trapped foes, the party is confronted with a threat that places the future of the surface world in jeopardy. Your heroes must act quickly to secure the world, or face the consequences of their failure to halt the advance of the denizens of The Forgotten Hive.

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.

The mad wizard Emirikol is terrifying the city! Striking without reason and sending his winged apes to slaughter the populace, the famous archmage has gone too far. Now a coffer of jewels is offered to those who would dare defeat him. The ever-changing walls of his Shifting Tower are guarded by a host of diabolical traps, fiendish guardians, and unimaginable terror. Will your adventurers come out victorious…or lose their very souls in the attempt?

For as long as men remember, the Lord of Evil Amphibians carried out unspeakable rites in his squatting temples situated far from civilization. Tales of human sacrifice, squirming servants, and rich but loathsome treasures were whispered of his followers. Now, unexpectedly, his servants have seemingly vanished, leaving behind their fanes to molder in the marshes. A brave band of adventurers gathers to explore one such tabernacle, eager to discover what riches—and terrors—the Lord of Evil Amphibians has left behind…

The adventurers have been summoned to a mysterious black tower made of glass. They are given a simple mission: protect the mage’s estate while he is distracted weaving a mighty spell. Surviving the five days of his spellcasting requires quick wits and sharp blades, for the estate has mischievous guests and strange visitors. In the end, the mage demands one final task: stand by his side as he binds a great horror from beyond!

Your stalwart band treks through the trackless jungle seeking the Dragon's Maw Waterfall. At the base of the falls, behind a massive curtain of water, is rumored to be the cavern lair of a great wyrm. The local Xulmec tribesmen say the great dragon has not been seen in nearly 100 years, so perhaps its hoard lies unguarded and ready for plunder. But what role do the heroes play in a blind shaman's prophecy foretold a century ago?

On the Purple Planet, amid the frosted Ancestor Peaks, the adventurers have encountered a small pyramid thrusting skyward from the bottom of a ravine. This is the Tomb of Dust, one of the ancient cairns found throughout the area. Here, the PCs find deadly puzzles, encounter the Moth Mother and her hungry brood, and face the tests of Anh-Tho the Learned, a forgotten scholar of a bygone age. If they manage to thwart these dangers they gain access to Anh-Tho’s Archive, a perilous repository of potent lore!

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?

When the heroes come into town, word arrives that a nearby cloister of the god of valor is under siege by an army of undead. The adventurers travel to help defend the bastion of paladins, only to discover that these undead are actually ancient enemies of the paladins’ order. They have discovered a way to exact vengeance for slights committed centuries ago, but to finish their plan they must breach the cloister’s catacombs! Can the heroes battle them to the catacombs and defeat their horrific blackguard champion?

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 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.

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?

Ten thousand flawless killers surround the city. Utterly silent in battle and in death, they seem unconquerable. They mean to choke the life out of the age-old city and leave it an empty ruin. The city calls upon its heroes to defeat this unnatural menace. The heroes gather to ponder the question: how do you defeat an impregnable foe? And then a wizard from a far-off world whisks the heroes away to fight battle of a very different sort, leaving them with a strange neon pink glow around their eyes… Note: This adventure can be used setting neutral or as a means to enter the "Purple Planet" DCC setting.

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.

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.

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.

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?

A member of your gang awakens in an alleyway with foggy memories of a deal made, a job taken, a partner slain, and a heist planned. They struggle to remember the details, but you all agree that breaking into an abandoned temple should be a simple matter – in and out. Yet the heist is on a collision course with something sinister. What begins as an easy job becomes anything but, as you confront cultists, vengeful spirits, and the servitors of a long-forgotten god. While seeking an easy score, you uncover a plan to strike a blow into the heart of Lankhmar, and no one is safe from the blasphemous plot. A choice needs to be made. Will you stand with the city, or risk letting it descend into chaos? Curse the gods of Lankhmar for their cruel joke that, in the shadowed alleyways of Lankhmar, there is no such thing as a “simple matter.” Officially licensed from the estate of Fritz Leiber.

Summoned by a coven of foul witches, the adventurers are bid through the Black Gate and across the multiverse, in pursuit of the crown of the fallen Horned King. There, in the icebound gloom of Thrice-Tenth Kingdom, they must pit their wits and brawn against his dread servants. His sullen citadel looms above the darksome woods and elfin ice caves, ruling over the mystic kingdom. Do you dare to ascend the throne of bones and declare yourself master of the Wild Hunt? Whatever your answer, the land beyond the Black Gate is sure to present a grim challenge for the even the hardiest of adventurers!

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.