A short adventure of human greed meeting weird horror with a quite messy outcome. An encounter set in a church, with a Shoggoth like eldritch horror as the Boss.

The Dreaming Caldera involves the players infiltrating a volcano teeming with monsters that are intent on constructing a chaos god. The players must navigate through the hostile environment, disrupt the monstrous activities, and ultimately prevent a catastrophic event. 27 keyed locations Written for the Old-School Essentials (OSE) rule system

Dwarrowdeep is a new megadungeon from Three Castles Award Winner (2018) and Barrowmaze author Dr. Greg Gillespie. Gundgathol lies in ruin. Over 250 years ago, an evil host rose from the underdark and pushed the dwarves out of their ancestral mountains. Since that time, orcs and worse have defiled their sacred halls. In recent days, the high dwarven clerics cast their runestones and read the portents: the time has come to retake Gundgathol. Are you brave (or fooloish) enough to enter Dwarrowdeep? Dwarrowdeep will keep your players on their toes and your campaign going strong for years. Dwarrowdeep is brought to you by the Old School Renaissance (so don’t forget your 10’ pole). This project was created through a group of awesome backers from Kickstarter. Without them, this project wouldn't have happened. Thank you for your support! Check my drivethrurpg profile for all sorts of additional Barrowmaze material. This megadungeon adventure includes an all-star cast of Ex-TSR artists including Darlene, Larry Elmore, Tim Truman, Jeff Dee, and Diesel. It features 150 unique zipitomes (art that tells a story of iconic adventurers along the bottom of the page) illustrated by Peter Pagano. Dwarrowdeep is the single largest dwarven themed adventure in the history of role-playing games.

Lord Galveston's lands are plagued by murders. For the past several months people have been disappearing. Some bodies have turned up, their corpses found along the banks of the river. Strange tracks of a cat-like creature have been found around the villages, and rumors abound that a charon fiend, a dreaded beast of chaos, has come from the nearby wood and settled in the area. The latest victim is the Deacon of the Four Saints Church in Capendu. His body, found in the river, sent the alarmed villagers in search of aid. The adventure unfolds in the lands of the aged Lord Galveston and plunges everyone into a twisted tale of wild beasts and the restless dead.

When huge stones fall out of the night sky, A deadly curse settles over Gravencross. Help the village exorcise the Demon Stones. “The sun had set an hour ago, and the rain lashed down and the wind howled on the dark moor. A storm this late in the season was unusual, but this one seemed different. The clouds were more menacing, tinged with anger, the rain colder and more biting than usual. Skerrill had to find the lost calf and get him back to the farm before his father came back from the city on business. He’d been looking for two hours now, and he was right in the middle of the moor when the storm hit. He knew he should have turned back as soon as darkness fell, but then he was never the brightest boy in the valley. If only he had remembered to lock the farm gate. The calf was now likely dead anyway having stumbled among the boulders and rocks, panicking in the dark, and then fallen in a floodwater stream and drowned. Either way, he was in more trouble than he could imagine. Suddenly, a bright flash of white light and a roaring peal of thunder were preceded by an explosion as a huge object fell from the sky and impacted the ground of the moor no more than a stone’s throw from him. Dirt, mud, water, and debris erupted from the impact site, flying high into the air and then covering the moor for hundreds of feet all around. Skerrill was knocked to the ground instantly and covered in the fallout from the blast. His ears rang and his head spun, but he staggered to his feet in a daze. He stumbled to where the blast had happened only moments before, and in a depression in the ground lay a huge stone glowing orange as if hot. Skerrill passed out. Two more thunderous explosions crashed in the distance.”

Local villagers whisper of a mysterious place deep in the marsh - a place shrouded in mist and dotted with barrow mounds, ruined columns, and standing stones. The tomb-robbers who explore beneath the mounds - or rather the few who return - tell tales of labyrinthine passages, magnificent grave goods, and terrifying creatures waiting in the dark. Are you brave (or foolish) enough to enter Barrowmaze? Barrowmaze Complete (BMC) is a classic megadungeon for use with any old school fantasy role-playing game. BMC includes everything in Barrowmaze I and II in the same book in addition to new material, art, layout, and cover art by Ex-TSR artist Erol Otus. Barrowmaze Complete will keep your players on their toes and your campaign going strong. BMC is brought to you by the Old School Renaissance (so don’t forget your 10’ pole). This edition includes art by the aforementioned TSR artists Erol Otus, as well as Tim Truman, Jim Holloway. New old-school artists include Peter Pagano, Cory Hamel, Stefan Poag, Zhu Bajie, Stephan Thompson, and others.

Prison of the Hated Pretender is an introductory adventure for 4-6 characters levels 0-1. Originally published on the Dungeon of Signs blog, it is a short drop-in location-based adventure with a couple of interesting puzzles, a lack of "book" monsters, implacable foes with an obvious weakness, and a very weird roleplaying opportunity. The new 2020 edition republished by Hydra Collective adds suggested guidance for new Dungeonmasters who grew up with 5th edition and don't know how old-school works. Stats for both BECMI and 5th edition, and setting neutral (though there are some implied things about the history of the world).

A little cave-borne adventure about harvesting valuable cysts from a sleeping creature, trying not to be killed by the horribly mutated infectious things that already tried that, and helping a wizard who recently lost all his friends and just wants to get his spellbook back. For use with your fantasy RPG of choice. How would I use this thing? -As a terrible one-shot without consequences! -Drop "Find the wizard Felix Longworm cowering by stones and a mournful tree" into your mountainous random encounter table of choice, and pull this out when the fates decide. -If the cave is ignored something else will eventually be birthed out of it, so you get free campaign fodder if your players shake their heads and say "nope". Apart from the adventure it also contains a glorious suit of cursed armour, horrific explosives, four new spells, an adorable cut-out map for your players to put together as they explore, and some pretty neat light tracking mechanics, so there's that.

A museum of the Mad Archmage, it contains curiosities and treasures from all over the multiverse, and the challenges of the Watery Caves, which are a series of living caves connected by an underground river. This adventure can be used as an expansion to the Castle of the Mad Archmage mega-dungeon adventure, or as a stand-alone adventure. Published by BRW Games

Thunder and quake have come to the old town. Towers crumble, homes tumble, the quick become the dead. What omen could be more obvious? The Pharaoh Fish under the mountain is displeased. This God must be propitiated. Brave heroes must venture to buy the city's salvation. At the very least, the Town Council needs to appear in control and send some 'expert adventurers' into the depths. A fantasy pointcrawl adventure for characters of 5th to 6th level. Local town, 17 pointcrawl regions, dungeon inside the Pharaoh Fish. Pointcrawl mechanics for Old-School Essentials. Keyed in a quick-reference, bullet point format. Unlabelled map included for VTT use.

A vast, sprawling mega-dungeon beneath the ruins of a nearby castle. Reports have surfaced of stockpiles of wealth within the passages. Regions previously devoid of monsters are reported to teem with renewed activity. Magical and mundane traps have brought foolhardy explorers to their doom. Changes within the passages and chambers have rendered old maps and knowledge dangerously unreliable if not outright useless. To the bold and daring, only one message needs to be heard: the castle and its dungeons are once more ripe for exploration, and new legends are ready to be made. Note: This adventure requires three books for it to be complete (sold as a package): Adventure Book, Map Book, and Illustration Book. Published by BRW Games

A millennium has passed since the Green Death swept across Hyperborea. In that bygone age of pestilence, a noble family fled the City-State of Khromarium. Far beyond the walls of the city, they entombed themselves in order to elude the inescapable plague. Their necromancer placed them in a deep slumber from which they never wakened. Also he summoned a mythical serpent to guard the vault, a beast reputed to shed gems for tears from eyeless sockets. Tales speak of this beast as the Sightless Serpent. Now, a knave of Khromarium claims to have witnessed the legendary beast. For a pittance he will lead your party to its trail in this swords and sorcery style adventure

An old-school dungeon adventure! Explore (and possibly claim and re-open) an abandoned gem mine. 8 pages, 16 rooms, weird monsters, eerie situations, arcane technology and iridescent jewels! For use with old-school or OSR RPG systems.

A level 1–3 dungeon adventure by Giuseppe Rotondo. The secret workshop of a long-dead jeweler-magician is now open, as his grandson wants the place finally cleared of all dangers. What treasures might remain within, and what might be watching over them? This adventure combines classic dungeon crawl elements with the intrigue of uncovering a magician’s legacy, making it a rich experience for both new and seasoned players. For Old-School Essentials (OSE) Included as one of four adventures in "Old-School Essentials Adventure Anthology 1"

(2017 ENNIE Awards Judges' Spotlight Winner!) THE MOST AWESOME ADVENTURE EVER Since the invention of the adventure module, there have only been five adventures that were rated the most awesome, the most epic. Broodmother Sky Fortress leaves them all behind. It’s got these creatures that are half shark. Half elephant. All badass. They fly around in this cloud fortress, wrecking everything in the campaign until the players step up to stop them. It’s all terribly exciting! And all brought to you by none other than the world-famous Arch-Mage of Old-School, Jeff Rients! As an added bonus, we’ve included a Greatest Hits of the ol’ Arch-Mage’s essays and game tools to build your campaign into the unstoppable juggernaut you’ve always wanted it to be. Your game won’t suck anymore! Broodmother SkyFortress: Buying any other adventure is just throwing your money away (includes "3.PF" edition stats by Jukka Särkijärvi because somebody somehow convinced me that would be a good idea back when this thing was being crowdfunded) Writing by Jeff Rients Art by Ian MacLean Graphic Design by Alex Mayo Cartography by Jez Gordon

An Early-Level Adventure Game Module Suitable For The Osric Rpg System Or Any Other 1e Compatible System. A Shaft Has Been Discovered Below The Old Watchtower Outside Of Town. Worse Yet, A Boy Has Fallen Into It! Your Party Must Race Against Time To Save The Boy And Sift Through The Remains Of The Watchtower On The Hill!

"The Anomalous Subsurface Environment is more than just robots and lasers – it's clowns and dinosaurs, too! Levels 2 and 3 of the critically ignored gonzo megadungeon are finally available – with more classes, more tables, and more cruel and unusual ways to die deep beneath the surface of the post-apocalyptic Earth!" "ASE2-3 – Anomalous Subsurface Environment" expands upon the ASE1 module, exploring the second and third levels of a vast underground complex in a unique post-apocalyptic setting blending fantasy, science fiction, and bizarre elements. Extensive list of bizarre and unique items and monsters. Written for Labyrinth Lord

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

In the deep, it has awoken. Hidden in the ruins of an old dwarven kingdom awaits a powerful relic, and an army kobolds are on the march to retrieve it. Dare the heroes enter this ancient place, and will they find the relic before the army arrives. In a race against time the adventures may unleash the greatest evil, while trying to save the world from a grim fate. Tomb of the Dragon's Heart is a low-level OSR adventure suited for Labyrinth Lord and other oldschool retro clones. 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 new magical items and relics and new monsters to challenge your players. Tomb of the Dragon's Heart also functions as a prequel to The Flooded Temple and to Grave of the Heartless. Published by Greis Games.

The Toxic Wood is a deadly wilderness adventure for Old School Essentials This hexcrawl adventure focuses on game-able content and being easy to use at the table. It is graphic and art heavy and utilizes a lot of random tables to make it easier for GMs to run with minimal prep. "You have been hired by a secretive council of wizards, who refuse to meet in person with you, to rescue the survivors of Mugwort - a town which was thought to have been destroyed and lies deep within The Toxic Wood. The Wood is corrosive and the air is not safe to breath there, so the wizards have given you a magical orb which will create a safe dome of air around you. The orb must be fed with fuel containing life force to continue operating properly. They have also gifted each of you a less effective necklace which will create a temporary small bubble of clean air around your head as an emergency measure. The Wood became noxious a couple of years ago after a dragon known as Ion moved in. You will have to navigate to Mugwort without Ion noticing if you are to conduct a successful evacuation." The toxic wood is home to many strange entities; spiteful mutated horrors, ancient insectoid witch sisters, bloodthirsty redcaps, a mushroom witch and a corrosive dragon cult. Noxious gases produced by alien plants slowly coil through the air creating an endless red haze. Anything that is not part of the woods lethal eco-system is rapidly corroded, with all evidence of its existence erased within days. Details: 32 pages Single column text 8.5 x 5.5 aspect Black & White Bookmarks Hyperlinks Random tables Hooks and rumors for your players Rules for surviving in the toxic wood using the orb and other means 16 keyed hex locations Backgrounds for characters to aid roleplay New monsters Key NPCs A timeline of events for the DM to structure their sessions around Flora of the wood Random treasure tables Prompts and resolutions for what happens if players take different actions Cursed Items and Powerful Artifacts: Scattered throughout the wood, offering potent abilities but often with dangerous drawbacks.