No-one knows why, but many of the villagers of Greenmist have been going insane. Not only that, but something has caused the surrounding environment to transform into fetid swamps. Heroes from far and wide have gone into the swamps to destroy the source of the madness, but none have returned. The truth is that the psychic whispers of an aboleth have invaded the minds of Greenmist's people. The creature called Seedooloo has been using forbidden magic, mad science, and the strange ability of his kuo-toan worshipers to grant himself the power to drive the surface world to insanity. The Call of Seedooloo includes monsters found in Mordenkainen's Tome of Foes.

An exiled cultist and his kobold minions are spotted searching for long-forgotten ruins in the Dragonspire Mountains. Rumors say he looks for a precious gift to give a fearsome dragon that dwells there. What he hopes to attain with his gift is unknown, but can't be good for the citizens of Phlan.

One of the original D&D classics, "The Isle of Dread" is a hex crawl wilderness adventure. It focuses on surviving primitive beasts, dinosaurs, and pirates while uncovering the mystery of the island's inland city, where a great treasure awaits. From the cover: "This module contains maps and background material for the Isle, fifteen new monsters, and suggestions for further adventures. In addition, The Isle of Dread contains a map and background information for a large continent, and eleven smaller maps for encounters on the island itself. In this module, players will push their way through dark jungles and treacherous swamps to discover the lost plateau, and the final secrets of - the Isle of Dread!" TSR 9043

The End of the World Is at Hand! A hideous death cult has seized control of an ancient artifact-monument known as Tovag Baragu. The power behind the cult is the Old One himself, Iuz the Evil, demonic master of an empire. He's on an all-or-nothing quest for supremacy over the world—and the heavens beyond. To stop him, heroes must face horrors never dreamed of, journeying to a shadowed city where Death rules and the living cower. Here, Iuz will achieve his mad dream by destroying the imprisoned master of that alien citadel: Vecna, the mightiest lich, an immortal demigod. Two items exist with the power to stop Iuz—the Eye and the Hand of Vecna—but using them carries fantastic risks. Not even the gods know what will be unleashed when these items are fully activated. Die Vecna Die! takes the heroes from the Greyhawk campaign to the demiplane of Ravenloft and then to the Planescape city of Sigil. However, none of the material from those settings is required for play. TSR 11662

The heroes arrive at the eponymous Keep on the Borderlands, a fortress on the edge of civilization built to stave off the chaos and evil of the wilderness. Using it as a home base, a party can make forays into the surrounding wilderness, encountering monster and marauder alike. The centerpiece of the adventure is certainly the CAVES OF CHAOS, a network of tunnels and caverns found in the walls of a nearby but isolated ravine. It is here that hordes of evil humanoids have made their home. Through combat and negotiation, the players can try to explore and map out these caves, perhaps with the aim of accumulating valuable treasure or even cleansing the land of evil creatures. However, even the Caves are not all they seem. Beyond the goblins and kobolds lurk dark horrors: cults dedicated to fiendish chaos and a Minotaur's enchanted labyrinth await the unprepared adventurer. But for the hero who is brave, clever, and fortunate in equal and sufficient measure, great treasures and glory await in the Caves of Chaos that lie beyond the Keep on the Borderlands! TSR 9034

The Isle of Ruk and the Dungeon of Klinis A sandbox adventure module and mini‑setting for classic fantasy play. Explore the bustling port town filled with factions and intrigue, wander the wilds where strange creatures stalk, and delve into the dungeons. New monsters, magic items, and two new character classes bring fresh flavour without adding rules. At the island’s heart stands the Dungeon of Klinis a three‑level ruin carved deep into the mountain, filled with traps, factions, and long‑buried treasures waiting to be uncovered. Whether your table prefers exploration, intrigue, or old‑school dungeon delving, Ruk offers a flexible foundation for emergent play. Inside you’ll find: A lively port town packed with NPCs, factions, rumours, and adventure hooks A hex‑crawl wilderness full of oddities, encounters, and strange phenomena The Dungeon of Klinis, a multi‑level adventure site designed for classic play New monsters and magic items that add flavour without adding rules Two new character classes to drop straight into your campaign A setting built to be hacked, expanded, or used as a launchpad for your own stories Design Inspirations This project draws on the spirit of Gary Gygax’s classic article “How to Set up Your Dungeons & Dragons Campaign – and Be Stuck Refereeing It Seven Days per Week until the Wee Hours of the Morning!” and the practical creativity of Ray Otus’s workbook approach to worldbuilding. The map were drawn with inspiration from Niklas Wistedt (Paths Peculiar) how to draw basic dungeon maps. The Graves design aided by James Holloway's The Tome of Tombs. The earliest seeds of the Isle of Ruk emerged while designing a character class for the OSE Class Jam, eventually growing into a full mini‑setting and adventure module,

Them Ogres Ain't Right... The Rise of the Runelords Adventure Path continues! The notorious Hook Mountain ogres, known for their violent and savage ways, have slaughtered the soldiers of Fort Rannick. The few surviving rangers need heroes to help them retake this key fortification before the ogres use it as a staging ground for further assaults on the region. Yet why have the ogres chosen now to launch this sudden attack? What sinister force grows in the surrounding wilderness, and what ties to the mysterious Sihedron Rune do the ogres of Hook Mountain hide? Are the rumors of an army of giants massing for war true?

As the floating cities of Netheril hover peacefully in the air, the winds of intrigue boil all around them. The phaerimm continue to plot the downfall of the Netherese even as Karsus prepares for the casting of his greatest spell. Undead walk the land, driving orcs and humans before them. And somewhere below the greatest nation of Faerûn, the Tarrasque awakens from a long slumber. How the Mighty Are Fallen, is an adventure designed for use with the Netheril: Empire of magic boxed campaign setting (which is required to play this adventure). Within these pages, the final heroes of Netheril can : Gather the spell components, that Karsus requires for casting his "most wondrous" spell, the only 12th level spell ever known. He just needs a few body parts from two creatures - A gold dragon and the Tarrasque. Reuinte lost lovers after they have been separated by death. Nopheu's wife was killed in a magical explosions, and now he's finally saved enough money for her to be resurrected. Certainly a dead body couldn't pose a threat to a band of stalwart heroes?! Follow the winds of fate to wherever Tyche delivers them. Numerous side adventures allow players to take their characters to a variety of different locations. Some heroes might want to follow the trail of the missing nether scrolls, while others might want to join the resistance and fight Karsus and the other archwizards. But only the bravest hearts can take the first step... TSR 9540

The ancient ruined city of Tamoacha is familiar to a select few scholars and fortune seekers, who know of it but not always exactly where it is. Even more secluded, lying somewhere within or beneath the ruins, is a hidden shrine said to be dedicated to Zotzilaha, the vampire god of the underworld. Adventurers who catch wind of the place are likely to find its lure irresistible. Remake of the AD&D module by the same name.

Five exciting short adventures to make your Basic campaign come alive! The Clearing of Castle Caldwell - A local merchant has recently purchased a small castle... but when he tried to move in, he discovered that the castle was already inhabited! Dungeons of Terror - A strange trapdoor in the floor of Castle Caldwell leads to a terrifying challenge! The Abduction of Princess Sylvia - On the eve of her wedding, the beautiful princess has been kidnapped! Can you save her in time? The Great Escape - Imprisoned in an enemy fortress, without armor or weapons, your situation seems hopeless. Yet there may be a way to freedom... The Sanctuary of Elwyn the Ardent - A mystical chime of great power has been stolen - but by whom? In the wrong hands, the chime can cause untold harm! But can you find and defeat this mysterious and powerful creature? TSR 9143

A deadly encounter for a party of level 7-10s. Brave the crypt in an attempt to save Lord Eldark's son. This challenging dungeon is adaptable and easy to run in any existing campaign. It has some very tough encounters and is available for free on DM guild!

Swamp creatures! They surround you now as you move slowly through the gurgling muck. How will you reach Quagmire now? Each day, the hungry sea swallows more of the ancient port city. A fierce fever ravages its people, and now - these foul monsters! Their beady eyes glimmer from deep within the tangled vines. Are these the creatures that have blockaded the city, turning away the ships that are the city's lifeline? Are these the scum that are starving the people of Quagmire, threatening an entire race with extinction? These creeps? Let's clean this jungle out! Quagmire includes a large-scale map that expands the D&D world and introduces new areas to explore. The adventure also includes new magic items and a special, expanded monsters section. Hurry! Hoist your colors, saddle your horse - go, before the city by the sea becomes the city beneath the sea! TSR 9081

The Lamenting Lighthouse is a four-hour adventure for 5th-10th level characters, designed for Dungeons & Dragons 5th Edition, with a nautical theme, heavy undead and horror elements, and mysteries to solve! One lonely lighthouse shines the way through the rocks and shoals that deny entry to the northern Moonshae Isles. But when the party’s transport approaches, a horrific gale at their backs - no light is in sight... The party must venture ahead of their vessel in a race against the storm to the restore the beacon before their ship is lost. What has befallen the keepers, and what dark secret does the lighthouse hold? Will the heroes prevail, or will they join the lighthouse's lament? This adventure can easily be inserted into a run-through of Ghosts of Saltmarsh. This one-shot can also serve as a nautical interlude in any on-going campaign where the characters have to take to the sea. Included with this adventure are: + 6 original custom creatures, the dread wraith, the dread wight, the swarm of seagulls, the captain, the rating, and the sailor + 12 player hand-outs with notes that shed light on the mystery of the lamenting lighthouse, with a randomization mechanic that ensures a degree of replayability + 9 original fleshed out NPCs, including personality traits and roleplaying tips + 2 original magical artifacts + 7 hand-drawn maps of important locations + a story reward and 2 story hooks for continuing the adventure (depending on how the adventure resolves)

Qorgeth’s fanatical undead followers await a messenger from their dark master. They whisper blasphemous prayers at blood drenched altars in total darkness, their profane chants calling Qorgeth’s demonic emissary to the mortal world. The unspeakable evil that now threatens Midgard’s Western Wastes was awoken by the well intentioned mistakes of a man named Petring, a loving father who was seduced by Qorgeth’s lies. It falls to a party of PCs to undo his cataclysmic mistakes and protect Midgard from the coming of a demon prince.

The astronomer monks of Farsky failed for decades to tell the future by the stars. Desperate, they found a promising seer, and passed off her predictions as their own… until deadly illness struck. Unable to give up their lucrative scam, they trapped her spirit, which became a thing of evil: a banshee, whose howls foretold their doom. The party have heard rumors of a ruin, where once sages could answer any question… Notes by @Demian: Winner of One Page Dungeon Contest (OPDC) 2015. The adventure consists of a single small dungeon with 13 rooms and an exploration/time-based random Silence spell mechanic. It is themed around music and sound. Designed as a one-shot to be played in one 4–7 hour session.

This scenario sees the adventuring party given an important quest to collect a number of broken magical seals and to light a number of magical braziers, all of which once protected the crypts of Kelemvor. In so doing, they can help to quell a devastating uprising of undead — organized by a powerful lich named Idris bent on destroying the city of Neverwinter. “The Crypts of Kelemvor” is a one-shot Dungeons & Dragons adventure for characters of levels 3 to 5, adapted from a quest in Neverwinter online.

The time has come to venture beyond the village of Orașnou and explore the realm of Barovia. However, in your travels, you happen across an unusual tribe of peopl —distrusted denizens of the Demiplane of Dread. Do the Vistani truly possess the ability to see the future, or is it simple parlor tricks and deceit? Part Five of Misty Fortunes and Absent Hearts.

Five distractions within the castle walls - The party's help is needed by several of the denizens of the local castle. Role-play and skill challenges, a new magic item, and a new monster. Published by Limitless Adventures.

Deep in the elven forests of Myereth, ancient rowan trees spread white boughs above a sacred site. Pillars of stone twist like some strange form of vine, curling among the branches and reflecting the light of a silvery moon. The forest is silent, and beautiful, protected since the dawn of time by a powerful Unicorn. The elven forest of Myereth is well known throughout the world as a safe haven of good and peace, a place where evil cannot stand to enter and where the trees weep healing tears upon those injured within its boundaries. Any player character elves know of the forest, its healing properties, and its legendary beauty. They may have heard of it as a legend, or they may have visited its mystic shrine when they were children, brought along on a pilgrimage by other elves. But something has gone terribly wrong. Refugees from Myereth, terrified and confused, are flooding into other elven cities. They speak of a great evil that has conquered the forest, one that has killed the body of the immortal Unicorn and tainted its spirit. Myereth runs with blood, they say, and the once-powerful rowan trees have begun to wither and die. In the center of the Rowan Grove, the bloodied bodies of the last elven warriors of Myereth lie scattered and broken. Those responsible call themselves the Servants of the Blood Moon, and they are led by a dark-robed sorcerer. The surviving elves do not know this evil man — all but one of those who fought against the Servants died — but they know that the sorcerer calls himself Tamarat. He has butchered the Unicorn, the spirit of the forest. The Myereth, and the elves, are dying.

A horror fantasy adventure for 3-5 1st level characters The hunched beast prowls the forest, sniffing at the still air. The roiling sky flashes and thunder breaks the silence. The time is near and the beast senses it. The monstrous form bounds toward the darkened village, a demonic howl in its throat... Shipwrecked on a perilous shore, a group of adventurers stumble into a blighted land and come face to face with a great black beast with a terrible curse. Can they unravel the mystery and solve the Barghest's curse before it’s too late? - 58 pages, 10 locations, 10 dungeon rooms - 2 new spells and 5 new monsters - Over 20 original illustrations - Inspired by English folklore - Emphasis on exploration, interaction, and usability