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.
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, From 1986
The Cagewrights continue their manipulations of the city of Cauldron, making the PCs their latest pawns in a gambit that leads all the way to the Abyss. The heroes must complete the test of a deposed demon lord to ensure the safety of Cauldron and all its citizens. A D&D Shackled City Adventure Path adventure.
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? Adventure for 4 PCs, spanning levels 5-11. The adventure is fast-paced and time-sensitive, and requires almost constant movement by the party.
A 5th Edition Fantasy Adventure for 3rd Level Characters The PCs find themselves trapped in a strange labyrinth. They’ve arrived by magical means, and they can’t go back the way they came. They have no idea where this labyrinth is located. As they explore the labyrinth and try to find their way out, they may learn that everything is not as it seems, and the difference between an enemy and an ally can be difficult to discern. Escape is not easy, and a fate worse than death awaits those who fall.
First Lord Torin Nomerthal and several his advisors will be leaving Hillsfar to inspect the Wall with only a small contingent of Red Plumes. The chance to strike is now! Part Two of Six Knives for Torin Nomerthal. A two-hour adventure for 1st-4th level characters.
Caravans are having a difficult time getting through to Parnast via the Black Road. Organized attacks by orcs and other monstrous humanoids working in concert with one another have folks baffled. Little do they know that an unusually intelligent hill giant, going by the name of Bad Fruul is to blame. SEER has sent her emissary Hsing, to task your group to accompany a caravan with a very special cargo destined for the Shrine of Axes in Parnast, and to figure out who is responsible. A Two Hour Adventure for 1st-4th Level Characters
The frontier town of Ehrshire is expanding rapidly, much to the delight of the burgeoning town’s lord, Earl Wallace Viktir. In need of timber to expand his seat of power, the earl has sent logging crews to the surrounding forest, although recent delays have caused him to become anxious and impulsive. Earl Viktir has left for the logging site to see what is causing the setbacks, only to discover it disturbingly vacant! The task now falls to the PCs to catch up with the missing Earl Viktir and sort out the trouble in the woods, but such as task is easier said than done. Something has roused the local plant-life into a frenzy, as if the entire forest has an axe to grind against the loggers! Will the party be able to get to the root of the problem… or will they be left barking up the wrong tree? Dungeons on Demand is a line instant dungeons you can drop into your campaign, each is designed for 4-5 player parties of specified levels, and each dungeon is complete with a back story, hand drawn maps, traps, puzzles, and reference information to monsters and treasure. You can customize each one to fit in your campaign however you wish, and each one can be played through in one or two gaming sessions.