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!

For months, the dreams of the people of Emystrell have become dark and terrible. It seems their nightmares have come to life as in recent weeks, people have mysteriously gone missing, vanishing in the night without a trace! Everyone is too paralyzed by their own despair to do anything or venture far from the safety of their homes. Emystrell is on the brink of collapse. The baron is offering a handsome reward to anyone who can show proof of the end of whatever evil curse that has taken hold of their town. This adventure is designed for a party of 3-5 heroic characters from the 2nd to 3rd level. It has elements of mystery and investigation in the first section which can be detailed and highly involved for groups that enjoy the process of searching for clues and solving mysteries or just as easily glossed over for groups that are more tactics focused. The second section of the adventure features the dungeon: a labyrinthine complex of an ancient elven crypt which the thieves guild has used as a base of operations for a decade...until the serpent worshipping cult arrived. The third section of this book is the detailed map and notes on the town and surrounding area of Emystrell. Roleplaying notes are kept light to allow for room for your own interpretations and details to NPCs remain as free to do with as you choose unless I felt inspired and hoped to give you a cool idea. This adventure has hooks for Dungeon Masters interested in a larger campaign involving the sinister plots of the Yuan-Ti (snake people) as well as other interesting adventure hooks (such as the giants in the nearby mountains or the stolen gem: The Eye of the Dragon). These plot points are intentionally left vague for you to fill in the gaps based on what your players seem interested in. You are invited to use this as a launch point adventure to lead your heroes on a larger adventure that might someday set them against an Anathema Serpent demigod, or it may simply be the adventure that begins their journeys and the evil of Yargoth stops here at Emystrell. If your campaign is set in a pre-published setting, this town of Emystrell can be replaced or fit into any campaign with a few tweaks to local gods and names. If you are playing in Dragonlance, you could replace Yargoth the Dread Serpent with Tiamat, or Dendar in Fearun. The local goddess, Tyr, could be the Tyr from the Forgotten Realms or even Norse myth if that is your campaign setting.

The lost city of Archaia - an ancient ruin sunken into the earth - lies deep in the badlands. In recent years, caravans from Eastdale have come under attack from orcs, goblins, and worse. Some say these blood-thirsty warbands have made lairs in the deep caves and ruins. Sill others say the ancient halls are filled with magnificent treasures left by the Archaians. Are you brave (or foolish) enough to delve The Forbidden Caverns of Archaia? The Forbidden Caverns of Archaia (FCoA) is a 296-page classic megadungeon for use with any old school fantasy role-playing game. The pages of Forbidden Caverns are crammed full with new material, maps, amazing art (including special surprizes by former TSR artists), as well as an amazing colour cover art by Ex-TSR artist Erol Otus that matches Barrowmaze Complete as a sister-book. The Forbidden Caverns of Archaia will keep your players on their toes and your campaign going strong for years. FCoA is brought to you by the Old School Renaissance (so don’t forget your 10’ pole).

A quest to aid the Knights of the North, who have been overrun by a tribe of orcs, results in a group of 1st level characters learning everything there is to know about the basics of Dungeons and Dragons. This low-level adventure will use EVERY saving throw, ability score check and skill check, and goes over conditions, environments and different actions a player can make in combat.

A routine recovery job, bread and butter work for any party of sell-respecting adventurers. What could go wrong? A few bugbears aren't going to cause any difficulty, are they?

Crippled, wingless, old and a thousand times more dangerous. Surely, a crippled dragon is less dangerous than a healthy one. Pgs. 35-45

In the flooded temple is hidden a great treasure, and the adventures are in race to get there first, but the ancient temple is the home of Death's Messenger and several cults each with their own agenda. Will the adventurers survive or be dragged off to the lands of the dead? The Flooded Temple is a low-level OSR adventure based on the greatest RPG ever written as system agnostic and easily adapted to your favorite version. The adventure was originally written for the Danish Living Campaign The Hinterlands, and it is for the first time presented in English. The adventure introduces the players to a different tradition of adventures, and it one with a focus on exploration and encountering the unknown. The adventure contains several new items to entertain your players, and several challenges for them to overcome as they encounter the residents of the abandoned temple. The Flooded Temple also have a prequel, Tomb of the Dragon's Heart, and a sequel, Grave of the Heartless. Published by Greis Games.

A small band of centaurs have seen their water source fouled by unknown magic. When word of their plight reaches the party, they embark on a day's travel to the centaur camp. Along the way, they encounter injured wildlife and panicked bugbears. Terrifying storms beset the region, raining down acid and oozes. Agreeing to investigate the small corrupted lake, the adventurers discover a long buried evil has awakened—bringing with it oozing undead. The party must navigate the wilds, face the ooze storms, and confront a reanimated warrior who betrayed her god.

This adventure concerns a once-proud fortress that fell into the earth in an age long past. Now known as the Sunless Citadel, its echoing, broken halls house malign creatures. Evil has taken root at the citadel's core, which is deep within a subterranean garden of blighted foliage. Here a terrible tree and its dark shepherd plot in darkness.

After arriving at a seemingly abandoned trading post, the heroes discover to their horror that all the inhabitants have been transformed into black trees! Upon further investigation, they find clues that lead them to the hidden lair of Nockmort, a treant gone bad. Nockmort has been transformed by the strange radiation of a meteorite he discovered, and now he is a terrible force of evil. The characters must enter his sunless garden to save the town. And along the way they just might discover fabulous treasure...

A primer for the noir, pulp-fantasy setting of Sharn, the City of Towers, sending the party on a fast-paced urban investigation to track down a missing courier and ancient magical relics.

The Rise of the Runelords Adventure Path begins here, in the small coastal town of Sandpoint. Five years after a tragic fire and spate of brutal murders, the people of Sandpoint eagerly anticipate the Swallowtail Festival to commemorate the consecration of the town's new temple. At the height of the ceremony, disaster strikes! In the days that follow, a sinister shadow settles over Sandpoint. Rumors of goblin armies and wrathful monsters in forgotten ruins have set the populace on edge. As Sandpoint's newest heroes, the PCs must deal with treachery, goblins, and the rising threat of a forgotten empire whose cruel and despotic rulers might not be as dead as history records.

A bizarre journey into the realm of sleep. A casual visit to a living, nightmare theater. The King sends the party to speak to the Oracle, a Titan named Andromicus and ask about the fate of the kingdom. But the titan is asleep and sleeping he draws the heroes into his dream! This very weird adventure imagines the titan is dreaming three different five act plays whose stories intertwine and intermix randomly. The heroes find themselves in a random act of a random play and must "solve" the central tension of the act to put the Titan's mind at ease and move on to the next Act. Once they solved five different acts (which may happen out of order and each be from different stories) they exit the dream and the Titan wakes, allowing the players to ask the Titan Oracle a question. Some acts are short roleplaying encounters, some are full on combat scenarios. While the players can earn experience, and might get some cash, any magic items they find are illusory! A unique adventure with a lot of promise for an open-minded DM. Seems very like a classic Star Trek episode and in fact follows many of the same rules about Gods and Dreams. Pgs. 5-15

Beneath an ancient castle on the borderlands, reclaimed from the ruins of a lost civilization, there is a dark and deadly tournament being held. Seven stalwart adventuring companies, each representing a wealthy noble house, delve into the depths of the Dungeon of the Black Fey Mithelvarn. Each races to be the first to claim the power of the infernal machine that drives it, and find the Elixir of Immortality it contains. Can your party take up one of the relic banners and face the challenge of the dungeon, as well as the lethal competition from other companies seeking the prize? This adventure is formatted to both 1E & 5E gaming rules. Also available in PDF.

The mining town of Glister has had a prosperous year, and people have been coming in search of work and wealth. A call has gone out for help in some local matters, but getting there is no easy task. Catch the caravan and travel through treacherous Thar! A 2-Hour Adventure for 1st-4th Level Characters Part 1 of Kossuth’s Kiss

An evil cult with a trick up its sleeve. A missing tome, a trail of clues and an unusual cult. Lawful-good characters, especially paladins are recommended for this adventure. Clerics of Aphrodite, Hanali Celanil, Hera, and lshtar have a special interest in despoiling the cult of Shami-Amourae. [Note: Adventure contains statistics for the Demigod Succubus, Shami-Amourae] Pgs. 19-27

To a wizard, knowledge is power, and the wizard Lirdrium Arkayz wants to know the mysterious secret of The Rock. Many have tried to discover it - but The Rock keeps its secret well. The wizard offers a rich reward to anyone bold enough to solve this dark mystery. But the road to The Rock leads to danger and hidden peril - dangers that have claimed the lives of many brave adventurers. Rashness and folly will lead to quick death, but riches await the clever and brave. Have you the wits, courage and skill to survive the Journey to The rock? TSR 9106

Having put down a rising of giants, it was discovered that the motivating force behind their depredations was that of long-forgotten evil - the Dark Elves. Determined to seek out these creatures, a body of doughty adventurers mounted an expedition to learn the strength of the Drow and bring retribution to them (DUNGEON MODULE D1, DESCENT INTO THE DEPTHS OF THE EARTH). This module contains background information, a large-scale referee's map with a matching partial map for players, referee's notes, special exploration and encounter pieces, a large map detailing a temple complex area, encounter and map matrix keys, and an additional section pertaining to a pair of unique new creatures for use with this module and the game as a whole. A complete setting for play of ADVANCED DUNGEONS & DRAGONS is contained herein. This module can be played alone, as the second part of a series of three modules (with DESCENT INTO THE DEPTHS OF THE EARTH, D1, and VAULT OF THE DROW, D3), or as the fourth part of a continuing scenario (DUNGEON MODULES G1, G2, G3, D1, D2, D3, and Q1, QUEEN OF THE DEMONWEB PITS). TSR 9020, From 1978

The giants are only a half-mile away - straight up. Giants and humanoids that sail down from the heavens? Where could they be coming from? No base town or general area map has been provided, as this adventure can take place anywhere and can be easily integrated into any existing campaign.The DM should make sure that the town in which the PCs start is large enough to provide most anticipated supplies, spells, and services. This module is not a simple hack·and slay expedition. It also involves diplomacy and wit; if the PCs attack everything in sight, they may be destroyed. But the adventure is not entirely negotiation, for it has a good share of hearty dungeon exploration as well. Pgs. 4-23

A hobgoblin force is expanding and threatening the land. Confronted with the relentless advance of Azarr Kul’s horde, the characters must undertake vital missions to influence the outcome of the war. Can they shatter the armies of the enemy, or will Azarr Kul’s dreams rain destruction upon the human lands? The adventure is fast-paced and time-sensitive, and requires almost constant movement by the party. WoTC 95385