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.

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

Devastated in a war with a nearby wizards' school, the Fighters' Academy has since been surrounded by a foul and dank swamp - the Gloomfens. Since the climatctic battle between the wizards and fighters, the tower has decayed. The spirit of the head of the academy haunts the building, eternally plotting his revenge on the wizards who killed him. his loyal sutdents remain faithful to him even in death. Other foul undead have made their home in the rotting, spacious academy. From their lair, they make forays into farmsteads near the swamp in search of victims to feed their unspeakable appetites. The Problem of these terrible attacks by the savage undead will not stop until the evil that has found a home at the tower is burned from the face of the land forever. Will your party heed the call and help the town of Melinir? Will they be able to clear the former Academy of its undead? Lair of the Vampire Lord is the third in a three part adventure, The Haunted Tower. Or, it can be ran as a stand alone adventure. The choice is up to you. Part of TSR 1081 The Haunted Tower

"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 most deadly dungeon ever devised! High-level characters brave the unexplored corridors of Deepearth to confront perhaps the most feared adversary in the AD&D game. The second chapter of the Bloodstone Pass saga follows the conclusion of the desperate war against the bandit army. A cold and bitter winter drives the villagers to the edge of starvation, and numerous horrors strike the town of Bloodstone Pass. Join the adventure as the heroes explore the depths of the ancient bloostone mines, now inhabited by fearsome demons. There they hope to uncover the fantastic treasures rumored to exist in the unknown darkness. But deep within the mines, all is not what it seems.... This module uses the new rules from the Dungeoneer's Survival Guide and Wilderness Survival Guide. The adventure also includes optional BATTLESYSTEM scenarios fought entirely underground. These supplementary products are not required to play the adventure, however. TSR 9168

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"

This material was originally published as three separate adventures: G1 (STEADING OF THE HILL GIANT CHIEF), G2 (THE GLACIAL RIFT OF THE FROST GIANT JARL), and G3 (HALL OF THE FIRE GIANT KING). Contained herein are referee notes, background information, maps, and exploration keys for three complete adventures using the ADVANCED DUNGEONS & DRAGONS rules. This module can be used alone or as the first in a series of adventures that includes Dungeon Modules D1-2 (DESCENT INTO THE DEPTHS OF THE EARTH), D3 (VAULT OF THE DROW), and Q1 (QUEEN OF THE DEMONWEB PITS). TSR 9058

The king requests your presence in the honorable kingdom of Norwold. If you're worthy, you may be appointed lord of a dominion filled with friendly villages, sturdy fortresses, and raging band of monsters. Raging bands of monsters? Well, yes, and you may have to lead your forces into a war or two. But you'll be ready for the challenge. You'll be ready for treacherous spies who conspire to steal you land. You'll be ready for a foul band of giants that raids your dominions. And you'll be ready for the inevitable clash of empires, the outcome of which may alter the fate of millions. You'll be ready! Won't you? Test of the Warlords includes a complete campaign setting, several new NPCs, and dungeon and wilderness encounters, and guidelines for running a war between empires. TSR 9117

Something is rotten in Rhoona... When the grotesque god, Cretia, casts his ugly shadow over the town, strange things start happening. First, Duke Stephen vanishes. Then bizarre proclamations begin coming out of the Ducal Palace... Dwarves are outlawed... taxes must be paid in beer... horses must be ridden backwards. Soon the entire town is in an uproar and a Dwarven army is marching on Rhoona. This is the situation when you and your part of valiant adventurers arrive in the suffering town. There you find... A ragged beggar who prowls the streets offering cryptic advice. A mysterious black-garbed cleric planning treachery. A trusted soldier plotting his master's overthrow. A sinister jewel casting its evil emanations over the town. You and your party are Rhoona's only hope. Only YOU can unravel the dark mystery that plagues the town and save Rhoona from...the Curse of Xanathon. TSR 9056

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

Somewhere in the heart of the steaming jungle lies the answer to the whispered tales - rumors of a magnificent city and foul, horrid rituals! Here a brave party might find riches and wonders - or death! Is your party brave enough to face the terrors of the unknown and find the Forbidden City! TSR 9046

The village of Sacrabad is a wretched place. Dark rumors abound concerning its steward, “His Lordship” Nim Sheog, who rules the place through terror and cruelty. Merchants who have passed through Sacrabad tell tale of how chaos thrives while the good folk wallow in misery. Nim’s guard are no more than a well-paid gang of thugs, hired to enforce his relentless and often bizarre laws and what’s worse, they seem to be in league with a nearby band of goblins, The Yellow Fang, who are often left to terrorize the villagers without reprisal. It is rumored that Nim keeps the rightful and lawful lord of Sacrabad locked away in the dungeons of the keep, the ominous Black Tower. An imposing structure that once afforded the village protection, the Black Tower has become a symbol of tyranny. But there is hope on the horizon. Hope in the form of a secret society who conspire to rescue the rightful lord and overthrow Nim and his guard. Can our heroes champion the cause? Tyranny of the Black Tower is a short (single session) adventure module. It is a classic “rescue operation” complete with a strong villain and espionage intrigue. It is an ideal one-shot adventure with room for expansion into an ongoing campaign. Bonus side-trek hooks and a bonus dungeon are included as a means to build up low-level parties. This module is setting-generic and can be dropped just about anywhere in the multiverse. Published by Verisimilitude Society Press

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.

Part of the First Quest Box Set TSR1105, this is an adventure designed to introduce new players and DMs to AD&D. The High Wizard Nethril asks the PCs to enter an old ruin and search it fro his missing apprentice. The ruin is not empty, though! Horrible things have moved in, so the search will be dangerous... First Quest Adventure Book Pgs. 7-17

Agents for the Mayor of Kleine have discovered the stronghold of the Red Hand goblins deep within the Burning Hills. They have also discovered that the goblins are forming an alliance with local hobgoblin and bugbear tribes to sweep the humans out of Thunder Rift forever. The PCs must reach the lair before the hobgoblin and bugbear agents return to their own tribes. if the envoys do not return, the tribes will assume that the goblins murdered them and attack the goblins instead of the human settlements. In this way, the humans of Thunder Rift gain some unexpected allies against the Red Hand goblins. This is the most dangerous and demanding of the three adventures in this set. It is recommended that you play it after Red Hand Trail and Trouble Below. However, it can stand alone as an adventure in its own right if you wish. Part of TSR 1076 The Goblin's Lair

Powerful Magics are Loose in Karameikos! You and your companions are starting on your first adventure and you've been swept into the intrigues surrounding the infamous Black Eagle Barony. To prevent the evil Baron von Hendricks from gaining more power, you and your cmpanions must retrieve the magical Eye of Traldar from the wizard's tower at Fort Doom. Can you escapes the clutches of the armed garrison? Will the Baron gain the powerful artifact and use it for evil? You and your friends make the choices and affect the entire Grand Duchy of Karameikos. This module is particularly recommended for novice Dungon Masters and players who want to try their hand at overland adventuring. Recommended for four to six characters, levels 1-2 Handouts and pregenerated characters provided Suitable for use with the Dungeons & Dragons Game box and conventional D&D Game rules Features simple rules on outdoors travelling for exclusive players of the D&D Game box Adventure in the monster-filled caverns and dungeons beneath Fort Doom. TSR 9271

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.

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

A Planescape adventure for 4-7 PCs of levels 9-12 (about 60 total levels). While the module begins in the planar city of Sigil, most of the action takes place in Vudra, a layer of the Abyss. The PCs start in Sigil, tasked to find a vanished brother, and the trail leads to Vudra where the layers demonic ruler gathers magical blades for a terrible vengeance plot. Pgs. 32-58

A 4-hour adventure for 9th-10th level characters A sleepy lakeside village wreathed in fog, rumors of a lake monster, local disappearances, a band of assassins terrorizing the city, and a travelling circus sideshow that seems to be at the center of it all. “Come one, come all to the greatest show in the world! Step right up, ladies and lords, to see the wonders of the natural and unnatural world! Trained monstrosities from across the globe have been gathered for your amusement and examination! Strongmen, jugglers, acrobats, and sword swallowers join exotic acts and foods from the four corners of the known world and beyond! You, my friend, have the privilege of witnessing the spectacle, the amazement, the wonder of the circus of the stars! Step right up and buy your tickets now before they're all gone! Limited seating is available and no one will be seated once the show has begun!”