Just Add Water is a sewer-based dungeon crawl that can be easily inserted into any adventure. All you need is a location with a sewer system and a reason for the party to explore it.

An adventure included in the Essentials Kit (2019). The party starts in Phandalin, the starting town for the Starter Set (2014) adventure, Lost Mine of Phandlever. Various jobs are posted by Harbin Wester, townmaster, which the PCs can pursue. These jobs culminate in a raid on Icespire Hold, where Cryovain, a young adult white dragon, has recently claimed as its lair.

"Terror by night! The village of Orlane is dying. Once a small and thriving community, Orlane has become a maze of locked doors and frightened faces. Strangers are shunned, trade has withered. Rumors flourish, growing wilder with each retelling. Terrified peasants flee their homes, abandoning their farms with no explanation. Others simply disappear. . . No one seems to know the cause of the decay -- why are there no clues? Who skulks through the twisted shadows of the night? Who or what is behind the doom that has overtaken the village? It will take a brave and skillful band of adventurers to solve the dark riddle of Orlane!" TSR 9063

The rubble-strewn passageway twists and turns, winding ever deeper into the mountain, lower and lower into the bowels of the ancient, forbidding halls of long-dead dwarves. The torchlight flickers, threatening to succumb to the oppressive darkness. Creeping along one striated granite wall, Arikus the warrior moves cautiously toward the great cavern ahead, its sides and walls disappearing into the gloomy distance. Cocking his head to one side to listen, he holds his hand up for a moment, demanding unconditional quiet from from his companions. Then , his arm relaxing in relief, he waves everyone forward and moves into the open. Before him, scattered to the far walls of the enormous cavern, are piles upon piles of glittering treasure - coins from countless kingdoms, sparkling gems, exquisite jewelry, and items of wondrous power - enough for twenty kings' ransoms. Arikus laughs gleefully, thrusting both hands into the nearest cache of coins to let them runs through his fingers. At that moment, a monstrous shadow looms threateningly over him. Looking up, Arikus blanches and stumbles back in horror before the terrible visage of a Great Red Wyrm. The fearsome dragon opens its razor-filled maw and spews forth a gout of white-hot flame, engulfing the hapless warrior.... The ultimate Dungeon Master Fantasy! This is the most deluxe dungeon. Designed to appeal to discriminating and demanding role-players. Adventurers, beware. This is more than just a dragon hunt. Within the lair of the beast lie cruel and deadly traps, befuddling conundrums and puzzles, and cunning minions that will be the end of overconfident or careless adventurers. Comprised of three 64-page books, for two adventures that link to one super-campaign 12 full-color reference cards 16 special player handouts Eight Monstrous Compendium sheets A Sheet of cardstock standups with 24 plastic bases. Six full-color poster maps, two of which link together to make a giant tactical playing surface for use with miniatures or the included cardstock figures. TSR 1089

Giants have been raiding the lands of men in large bands, with giants of different sorts in these marauding groups. Death and destruction have been laid heavily upon every place these monsters have visited. This has caused great anger in high places, for life and property loss means failure of the vows of noble rulers to protect the life and goods of each and every subject -- and possible lean times for the rulers as well as the ruled. Therefore, a party of the bravest and most powerful adventurers has been assembled and given the charge to punish the miscreant giants. This module contains background information, referee's notes, two level maps, and exploration matrix keys. It provides a complete module for play of ADVANCED DUNGEONS & DRAGONS, and it can be used alone or as the first of a three-part expedition adventure which also employs DUNGEON MODULE G2 (GLACIAL RIFT OF THE FROST GIANT JARL) and DUNGEON MODULE G3 (HALL OF THE FIRE GIANT KING). TSR 9016

Restore an Abandoned Temple Enter the catacombs near the desecrated Temple of Muir, Goddess of Paladins, and search for the lost tomb of Abysthor. Will your party be able to cleanse the evil that now inhabits these once-sacred halls, and recover the Stone of Tircople? Can your characters survive the traps of an undead sorcerer? Will your players discover the chamber of Living Rock and the secret power it holds? Adventure awaits! Gold and Glory! A fantasy adventure published for the D20 system, The Tomb of Abysthor is the first module in Necromancer Games Dungeon series and can be played as a stand-alone story or in conjunction with The Crucible of Freya and the forthcoming city supplement Bards Gate. What secrets lie hidden in the tomb of Abysthor?

Years ago the valley was green, and animals ran free through golden fields of grain. The princess Argenta ruled over this peaceful land and the people were secure and happy. Then one day a warrior riding a red dragon appeared in the skies over the princess’ castle and almost overnight the tiny kingdom fell into ruin. Now only ruins and rumors remain, and what legends there are tell of a fabulous ruby still buried somewhere within the Palace of the Silver Princess TSR 9044

The King is dead! And the queen is in trouble. She has chosen you to find the fabled heartstone, which is buried somewhere deep in the Mountains of Ice. Is the gem I the hands of the corrupt Master Thief? Has he harnessed its powers for his own vile purposes? Or does it lie unguarded in the frozen ranges to the north, which teem with horrible creatures? This is your kind of quest! Quest for the Heartstone is a combined wilderness/dungeon adventure designed to be compatible with the Advanced Dungeons & Dragons Action Toys from LJN Toys, Ltd. and the Advanced Dungeons & Dragons Fantasy Adventure Figures from TSR, Inc. The adventure also includes complete maps, new monsters and players' illustrations. Will the heartstone be the key to peace in the kingdom? By her majesty's request... it's up to you to find out! TSR 9114

Civil War Unrest. Turmoil. Rebellion. As above, so below - the cataclysmic events of the Wrath of the Immortals echo throughout the Hollow World setting. The Milenian Empire, with its classical Greek culture, has not escaped. Already the streets are un-safe, and the omens are getting worse... The emperor is dead... long live the emperor! But is the new emperor a man of the people, or a tool in the hands of malevolent powers? Walk carefully, for no stranger is safe upon the streets these days, and adventurers least of all! The mood of the capital city is turning ugly. Minions of the new emperor look on uncaring, while citizens disappear and philosophers fall to heedless mobs. The old emperor's elite guards are disbanded and scattered. Disorder reigns, and restless citizens threaten open revolt. And yet... a whisper is heard. Civil war can be averted. An ancient artifact, the Milenian Scepter, can rally those who would serve the Empire best. But the Scepter has been lost for generations, and who can say where it might be? The trail leads into the depths of the city, and across a dangerous wilderness to a forgotten oracle. For the lucky and the bold, perhaps it will lead to... THE MILENIAN SCEPTER This stand-alone adventure is compatible with the Wrath of the Immortals boxed set and the accessory HWR3, The Milenian Empire. You will need the D&D Hollow World boxed set to play this adventure. Easily adaptable to the AD&D game. TSR 9378

Scholars Square is a relatively quiet corner of Phlan, but a series of odd thefts have the headmasters of verious schools in the area concerned. The headmasters' pleas for help have gone unanswered by the Black Fist, and the Lord Sage of Phlan decided to reach out to you and your kind to bring those responsible to justice.

A strangely delivered advertisement has led you to a sage named Demetrios. He needs a rare component to complete a desperately needed potion. The journey to retrieve it will take you through a large, unexplored swamp to a ruined keep, the former headquarters of a vile cult that once claimed the lives of many innocent youths. You cautiously accept the mission... To solve the mysteries of "Baltron's Beacon," the characters must excel in handling wilderness, building ruins, traps, puzzles, and new monsters. This adventure, originally designed for tournament use, is now available for your own campaign. TSR 9152

To stop a devastating rampage of giants across the land, the party must venture into the lair of the stone giant thane Arnak to uncover the truth about why he has broken his peace with the neighboring dwarves. In the process, they will have the opportunity to retrieve important symbols of the fight against the giants and uncover a dangerous excavation. The adventure is part of the "Against the Giants" series originally by Gary Gygax, hence the writing credit.

In this adventure, the PCs discover that not all souls rest easy, particularly those spirited away to Nightwyrm Fortress. To learn the truth, players must pierce death's veil itself and enter the Shadowfell, where sinister echoes of life wing through eternal gloom. This adventure can be run as a stand-alone adventure or as Part Three of a three-part series of adventures (starting with P1 King of the Trollhaunt Warrens(TM) and P2 Demon Queen's Enclave(TM)) that spans 10 levels of gameplay.

It's party time in Thyatis... And simply everyone is going to the magnificent Villa Osteropolus, home of the wealthy old senator, Helenites. Raucous fun, exotic food, and even advanced betting on the upcoming Arena games are expected. Even adventurers just in from the outlands may meet the powerful here. So don your festive togas, for in Thyatis City there are important connections to be made and deeds to be done, duels to be fought and fame to be won. (But beware, oh Adventurer! The politics of Thyatis can be as labyrinthine as mazes beneath the Coliseum...) This module is designed especially for the DM who wants to sharpen his interactive skills. Presenting the detailed layout of a Thyatian noble's mansion and maps of the multi-level Coliseum of Thyatis. Four four to six characters, levels 2-3 Brief guide to Thyatis legal system New optional class, the Rake Fast unarmed combat system, including disarming attacks Special appendix on creating Thyatian names Featuring the DM's Guide to Winging It TSR 9284

The whispered worries grow more fanciful and terrifying by the day... where has the loremistress gone?... what's wrong with the master smith?... who-or what-stalks the marketplace?... The questions need answers, and heroes are needed to do the asking! But the only thing worse than what hunts the mist-shrouded streets is what lies beneath them... Adventure in Dun Eamon: Demons roam the streets of the city of Dun Eamon, criminals rule the night and an important local power figure has gone missing. Can your heroes unravel the clues that lead through every social element of the city, into the hearts of its inhabitants and far below its streets in search of answers? Or are some mysteries better left unsolved? Uncover An Artifact: The Grey Citadel is a mini-campaign of urban detective work and dungeon exploration designed for four or more characters of 5th level. Set in a rain-soaked, rough-and-tumble frontier city, The Grey Citadel offers numerous colorful NPCs, a richly unique location, new monsters and magic items plus enough plot twists to provide hours of role-playing and door-kicking adventure where your wits must be as sharp as your swords!" This adventures mixes dungeon crawl with city investigation, keyed encounters and timed encounters.

"Orcs have returned to the once quiet border province of Blackmarch. The Bleak Tower and its meager garrison are all that stand against the tide. Their only hope lies in a ragtag band of adventurers willing to venture into the perilous maw of Ironwood Gorge..." "Ironwood Gorge is a fantasy role-playing adventure for 4-8 characters of levels 2-5, designed for older editions of the world's most popular fantasy role-playing game and its clones such as Labyrinth Lord and OSRIC. The material is also easily adaptable to any other class and level based fantasy role-playing game. Ironwood Gorge serves as part two in the Blackmarch sequence of adventures, but is built to function just as well as a one-off adventure, a drop-in-a-hex location for sandbox games, or as a kick start to a new campaign. The module includes keyed maps detailing both the Bleak Tower: a living, breathing refuge for adventurers; and Ironwood Gorge: a cave complex with over 100 keyed areas of traps, monsters and mayhem. The module is illustrated throughout with original artwork and includes appendices detailing new monsters, magic items, and spells. Whether you are looking for an out-sized adventure to usher the hardiest characters to the intermediate levels, or a fully-realized location to plunder for maps and ideas, Ironwood Gorge is a treasure from the old-school of gaming..." An alternative to B2 - Keep on the Borderlands

A level 2–3 sewer adventure by Glynn Seal. PCs plumb fetid sewers and recently-revealed secret halls, in search of a lost worker. In these forsaken chambers, they may find answers and treasures, but may also come face-to-face with a bloated monstrosity and its depraved followers. For Old-School Essentials (OSE) Included as one of four adventures in "Old-School Essentials Adventure Anthology 1"

Buried in fire, but hardly dead. Only the Keep survived the destruction of Koralgesh, but few adventurers will survive the terrors that now stalk the lost Keep's halls. Players hear rumours of the Keep at Koralgesh and then traverse it to acquire the treasure within. Pgs. 45-64

Special Basic/Expert Transition Module Barely one day's march from Kelven, the uncharted tracts of the Dymrak forest conceal horrors enough to freeze the blood of civilized folk. Those who have ventured there tell how death comes quick to the unwary - for the woods at night are far worse than any dungeon. But you are adventurers, veterans of many battles, and the call of the wild is strong. Will you answer the call, or are you afraid of the dark terrors of the night? The campaign adventure is for characters just beginning Expert play (levels 2-4) and hurls them into the exciting outdoor world which awaits in the Expert rulebook. With a 64 page booklet, 2 double-panel covers, a double-sided, fold-out mapsheet and 120 die-cut counters, this super module provides all you need for epic wilderness and dungeon adventuring. Journey across the Grand Duchy of Karameikos in a desperate race against time and the forces of evil. This adventure is for use with the Dungeons & Dragons Expert Set, which continues and expands the D&D Basic Rules. This adventure cannot be played without the D&D Basic and Expert rules produced by TSR inc. TSR 9149

Many of the local lords had gathered for a peace moot. A perfect opportunity for the demon-possessed Aeldrith Forkbeard to murder them all in cold blood. The PCs, attending the moot, must now flee for their lives. Harried by a Northlander warband, the party is forced to flee into the dreaded Witchwood. To reach the safety of the Kingdom of Marshes they must traverse the depths of the forest, avoiding Northlander raiders and the strange creatures of the Witchwood. The adventure also takes the PCs into the Feywild, where time runs strangely and memories are fragile. Finally, they must face the chilling Gatekeeper guarding the Feywild portal that allows the PCs to return to the Material Plane. Into the Witchwood is a generic adventure suitable for use in the Moonshae Isles. The adventure includes a map of the area, three new creatures and a new legendary magic item, the Circle of the Forest God.