In the city of Waterdeep rests a tavern called the Yawning Portal, named after the gaping pit in its common room. At the bottom of this crumbling shaft is a labyrinthine dungeon shunned by all but the most daring adventurers. Known as Undermountain, this dungeon is the domain of the mad wizard Halaster Blackcloak. Long has the Mad Mage dwelt in these forlorn depths, seeding his lair with monsters, traps, and mysteries—to what end is a constant source of speculation and concern. This adventure picks up where Waterdeep: Dragon Heist leaves off, taking characters of 5th level or higher all the way to 20th level should they explore the entirety of Halaster’s home. Twenty-three levels of Undermountain are detailed herein, along with the subterranean refuge of Skullport. Treasures and secrets abound, but tread with care!

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

Into Wonderland is a book detailing an adventure in the Feywild, a setting for Dungeons and Dragons 5th Edition. This book provides player options, encounters, variant rules, and a campaign of expeditions into the unknown centred around the city of Endercoast that has been spirited away from the Material Plane. To survive, you'll need to balance the needs of the displaced city with the mercurial whims of four powerful archfey. What's Included? - Endercoast, a city plucked from its roots and replanted in the Feywild - Quirks of the Feywild, including four powerful archfey, a guide for creating new archfey, rules for travel using emotional truth instead of maps, chaotic seasonal and magical effects, pranks, consequences for getting lost, and 14 weird stops along the way - New races - New subclasses - New backgrounds - New feats - New spells - Fantastical questlines taking a party through the courts of the archfey and on magical journeys inspired by the fairy tales of the Brothers Grimm - A whole heap of chaotic encounters with strange fey creatures - Dozens of new monsters, including 8 ancient beasts, 3 dangerous plants, 4 extremely powerful archfey, a bunch of NPCs based on the new subclasses of the book, creepy new fey like the darkwood stalker and the time vulture, a powerful hag, and more

Adventure in a desolate magic-stained wasteland where fabulous crystal spires and fortresses plummet from the skies to tempt the desperate and the bold with magical gems and golden treasures. Find your fortune or find your death as you plunder the fallen sky tomb of an Empyrean despot. SCHEME with the unnatural denizens of the Crystal Tomb! UNRAVEL the secrets of the Dead King and his realm of misrule! LOOT strange magics and Opulent Treasures from beyond the sky's vault! A complete adventure for Level 1 characters and an introduction to both the dungeon crawl style play and the Crystal Frontier setting. Written with the new referee and players unfamiliar with older style games in mind, Tomb Robbers of the Crystal Frontier is built to start a campaign, use as a one-shot, or to drop in as an adventure locale in almost any fantasy world. The adventure has been designed for and tested with OSE, but is easy to use with any of the wayward offspring of the early editions of the first fantasy roleplaying game. Tomb Robbers of the Crystal Frontier emphasizes problem solving, faction intrigue, and exploration in the tradition of classic dungeon crawl adventures, but with a phantasmagoric fantasy Western aesthetic. NOW AVAILABLE FOR ERRANT AND OLD SCHOOL ESSENTIALS!

Warchief Grog Bloodloaf has sounded the horn of war. Elf scum have stolen orc lands and the tasty halfling herds. For generations the Maggotsmasher Clan has watched and waited from the icy caves of the frozen mountains but that wait is over. Warchief Bloodloaf needs only the totem of leadership, the Dragon Crown of Durge Maggotsmasher, to unite the clans and begin his war. Five misfits have answered the call to brave the Caves of Throllorat and return with the crown. With a little luck, these five maggots will kill a few of the beasts within Throllorat before dying, making it easier for real warriors to complete the quest. The Misfit Maggot Five is a comdedic adventure where five rejects from the Maggotsmasher Clan are called upon to retrieve the famed Dragon Crown of Durge Maggotsmasher from the dreaded caves of Throllorat. Each of the characters are fully developed with their own unique personality that will give any Dungeons and Dragons group hours of laughs! The Misfit Maggot Five is a 5th edition comedy adventure for 2nd level monstrous humanoid characters. Published by The Pickled Dragon Press

The village near Oreclasp Keep has been reporting brutal owlbear attacks that have left people missing or dismembered. Lord Oreclasp has placed a bounty for every owlbear beak brought to Oreclasp Keep. The villagers don’t suspect the deeper problems brewing in the land.

Synopsis: Chalk Hill is a lonely village on the edge of the Downs. Nearby barrows contain remains of long-dead kings. As is the local custom, a pair of young newlyweds went to the ancient standing stones for the druids to bless their union. They never came back. The heroes must find and return the couple, who have been taken into the grave of Eorl Wulfstan. The undead Eorl saw the new-wife in a dream, and she is the spit of his long-lost beloved, so he had his servants bring her to him. They slew the young man, who rose as undead under the Eorl’s control. Can the heroes find the survivor and put the dead back to rest? A 4 to 6 hour adventure for 4 to 6 Tier 1 characters—optimized for 5 characters of 3rd level. This adventure came about thanks to the generosity and encouragement of Dyson Logos, cartographer of Waterdeep: Dragon Heist. In it you'll find maps never before seen in a Guild adventure! "Chalk Hill" is an Old School "out and down" dungeon crawl, where brave adventurers venture into the wilderness and pit themselves against horrors which would set a-quiver the flesh of honest folk. It's proof you can have an OSR experience using the 5e rules!

The outpost of Fort Dolor has experienced an unprecedented stretch of peace in recent times. Then nearly the entire garrison disappears on a supposed routine patrol, and the town— still on the frontier— is left nearly defenseless. Can the adventurers dig to the bottom of the mystery at Fort Dolor before they, too, disappear? Pgs. 82-103

Wherein the Heroes step through a Portal to find themselves in a Location Most Foul, from which they make their Entrance into the infinite Planes of Adventure. Chapter I of the "Well of Worlds" adventure anthology. Pgs. 8-23 TSR 2604

Listen up! You're in my dungeon now, Morty! On Earth C-141, I'm a LEGENDARY D&D adventure writer! When people think of impossibly difficult dungeons or winding, labyrinthine maps, those things ain't Gygaxian - they're SANCHEZIAN! I do whatever I want over there, and they eat it up! I'm a celebrity Dungeon Master there, too! My livestreamed show, Cynical Troll, gets a billion views a day! It seemed a little selfish to contain all that GREATNESS to a single dimension, so I lifted one of the all-time favorite Sanchezian adventures and snuck it back here to dimension C-132. (Usually that kind of s**t is frowned upon, but it's just a D&D adventure. We're not exactly violating the Prime Directive or whatever.) This is a good old-fashioned dungeon crawl for a party of 1st-level adventurers, whose character sheets in this box should also contain. They'll probably reach 3rd level by the end of it. So here it is. This adventure brought peace to a warring galaxy. What did you ever do? Oh, you picked up this adventure? Good start. And awaaaay we go!

Eons-old secrets slumber beneath the forbidden Ghost Ice. Since the time of the Elders, the local tribes have shunned the crawling glacier, knowing it as taboo land that slays all who tread its frigid expanse. Now, the Ghost Ice has shattered, revealing hints at deeper mysteries entombed within its icy grasp. Strange machines and wonderful horrors stir beneath the ice… Frozen in Time is a level 1 adventure for any DCC RPG campaign. It also includes new material for judges who want to send their adventurers in a Stone Age setting!

30 Ravenloft adventures inspired by various domains of dread, including Gothic Earth, that can be played as a single campaign! Dreams of Solitude is a collection of thirty exciting adventures that can either be played as a campaign, run as a one-shot, or have pieces taken out to supplement your current home game! You'll meet your match against Atarte, the evil master of dreams, who will task you to defend ancient fortresses from the undead, explore a terrifying maze, fight in the trenches of world war 1 or even a karaoke contest with werewolves! It's SO much fun, and you'll be able to go back for more adventures, again and again! Adventures summary: Demon's Isle: Explore a watery cave and find your way to the Pirate Demon Zekel! Airic's Forest: Survive a forest ruled by werewolves while you try to find the cure for lycanthropy! Fractured City: Enter a glitchy uncompleted illusory town and try to find the "Butcher" that roams the dark alleys. The Heinfroth Heist: Enter Dr. Heinfroth's asylum and steal his journal without becoming his test subject! Tomb of the Hentempet the Red Queen: Face Hentempet the red queen inside her Pharaoh tomb! Graveyard Of invitation: Enter a cursed graveyard and follow the clues to find the reason why the undead have risen! Fey Blood Merchant: Help the Vistani child escape his Rakshasha master before he returns! Horrors in Chateaufaux: Play the role of the Gendarmerie guards and find out who creates chaos in the roads of Dementlieu! On the Run: Explore an ancient tomb and escape the curse that you have unleashed! Vampire Escort Child: Can you help this poor child leave this jail meant for monsters? Defend the Keep!: Command your own military force to defend a keep against waves of undead! Lena's Pets: Explore the heidius laboratory of Frantisek Markov's student and escape before you become body parts for her next experiment! Lava trip: Who would want to be inside an ACTIVE VOLCANO? RUN! Escape Rooms: Find the way to escape before time runs out! How investigative are you? Singing Showdown: Karaoke competition with werewolves??? Labyrinthine Horror: Can you escape the labyrinth before the Vampiric Minotaur catches you? Teety's Hunt for Lulo: Find Teety's elusive love in an enchanted forest of pain! Monster Lab: Create your own Flesh Golem and make sure you are a good parent! Through fire and steel: Run through the No-man's-land while enemy planes and tanks bombard you and assassinate the enemy general! Don't forget to dodge the bullets! Drowning in Filth: Will you manage to escape before you drown in filth? Wilted Roses: Explore the forests of Sithicus and find the Black Rose Effigy! Shyclin’s Circus: An encounter inspired by the Carnival. The joke's on you! Among Us: Can you find shelter in a small cabin found in the woods? The Free Trader, Mist Runner: Avoid the enemy pirate ship at all cost while trying to reach the port with your own ship! The Curious Case of the Man Who Drowned in Air: Solve a detective's case in Victorian era London! Night at the Museum: Protect the museum's artifacts from invisible adversaries! Raid the Shadow: Lay siege on a castle controlled by the undead! Who could be its ruler? Journey to the Center: Control a mechanical worm of Kwalish and drill to the center of the earth to mine mithril! Journey Through Barovia: Visit Barovia's most famous places while trying to solve riddles or die trying! Choose Nothing: Solve a Death Slaad's riddle or get mad! The Final Dream: Tackle Atarte and their illusions in an environment that continiously alters between all of the dream-adventures! Only few can take on a Darklord and live to tell the tale! Published by Mistfactor Press

Sleepyhead. The only man who can stop the amphibian horde needs a wake-up call. The party must find a missing druid an bring his captures to justice. Pgs. 8-21

The sleepy forest town of Aulbesmil has seen better days. Orcs and monsters lurk in the woods now, but the real menace hides in the town itself. The PCs arrive in town to investigate a mysterious tragedy that has befallen the townsfolk. As they explore the town, they learn of other strange happenings and must assemble the puzzle to figure out who is responsible for the thefts and disappearances. Eventually, they track down the baron's culprit and bring him to justice, as well as liberate the captive nephew of the Baron. Pgs. 16-28

Part 1 of an Expert-level quest into a hostile wilderness. This adventure takes place in the Known World of the D&D game, as outlined throughout the D&D game rule books and modules. The DM may find it useful to consult the Companion and Masters Sets, as well as most of the X-series of Expert Set modules. D&D Expert Set module X9, The Savage Coast, would be especially helpful, as Tortles of the Purple Sage could easily serve and continue that module's direction and plot like, adding a previously undescribed area (the Great Northway) to the Known World. The DM may also place the areas and events of this adventure within an existing campaign setting, as long as the geographical areas of the campaign match those set forth here. Pgs. 40-62

The Dwarven clans are in chaos, and a powerful host of goblins stand poised to sweep over the land in a wave of death and terror. Only the Axe of the Dwarvish Lords- one of the most powerful weapons ever created by the dwarven race- holds the key to ultimate victory against the massing humanoids. Can the PCs brave the labyrinth of an abandoned dwarven stronghold to find the Axe? TSR 11347

How dangerous is a wounded dragon? A black dragon has seized Ravenglade Keep, though not without resistance! Badly wounded in the fight, the Warriors of Sehanine have fled their home and now turn to the outside world for help. There’s no time to lose! Can you arrive at Ravenglade Keep in time and discern allies from foes on the way? Warriors of Sehanine is a Dungeons & Dragons adventure module for a party of four to five characters from 3rd to 5th level. • Experience the Wood of Sharp Teeth on the way to Ravenglade Keep in a 12 to 16 hour adventure of 38 pages, written by Mithral Best Selling creators Florian Emmerich, JVC Parry and DMsGuild Adept Ashley Warren • Rock the (virtual) table with four breathtaking maps by Dean Spencer & Erin Harvey that come with player and DM versions • Bring the adventure to life with stunning artwork and player handouts by Raluca Marinescu,Henrik Rosenborg & Nathalie Lehnert • Show the NPCs with selected exclusive Trash Mob Minis

Hunt for the Thessalhydra is a short adventure published by Wizards of the Coast as a tie in to the "Stranger Things" franchise and part of the Stranger Things Dungeons & Dragons Starter Set. The adventure features characters, locations, and monsters inspired by that series. The adventure is suitable for characters of level 3-5.

Bring your chilling campaign to life with this companion supplement for Icewind Dale: Rime of the Frostmaiden! Tales from the Frozen North presents 10 handcrafted encounters between 15 to 90 minutes in length for your adventures across the frozen wasteland. They are specifically written around the themes of paranoia, isolation and secrecy, with a particular focus on exploration.

From The Magazine: "Every summer, Duke Hightower holds a competition quite different from the traditional jousting and archery tournaments held by similar lords of his station. The rules of his tournament change from year to year, and, to oversee the games, the duke has appointed two wizard brothers who help choose the setting and create the rules and challenges of the competition. This year the competition is called the “Owlbear Run,” an overland race that requires each participating team to escort a live owlbear from the town of Telvorn to the town of Milvorn. The teams will face a variety of challenges; some are devised by the wizards, others by the competing teams or their sponsors, and some occur entirely at random. All of these tests are in addition to the challenges inherent in motivating a temperamental owlbear. Fortune and fame await the first team to cross the finish line, and the local lords sponsoring the race are eager to enlist skilled champions for their causes." Pgs. 2-27