THE NEXT MARCH WASN'T DUE FOR ANOTHER 189 YEARS. TRY TELLING THAT TO THE MODRONS! On a regular schedule, the Great Modron March spills out of Mechanus, and the lawful automatons files their way around the Great Ring. No one knows why they do it, but everyone stays out of their way - because when the modrons march, they'll walk right over a berk who doesn't know enough to move aside. But this March has started decades before it was supposed to begin, and that's even more of a mystery. Caught unprepared, the planes shudder under the modrons' collective footsteps - and even the modrons themselves seem a little out of sorts. The Great Modron March anthology features 11 adventures for characters ranging from 1st to 10th level, as well as new information about the modrons of Mechanus. Each adventure can be played separely or linked together to form an extended campaign. The modron procession touches every Outer Plane in turn - and it isn't always welcome. On their unswerving path, the clockwork creatures will destroy celestial towns, be attacked by evil knights intent on using modron parts in foul experiments, and lead characters onto the deadly plains of the Abyss and into the famous prime-material labyrinth of Undermountain. Without help, they'll be lost in the swirling chaos of Limbo or even fail to complete the March entirely. And along their route, every blood on the planes seeks the answer to the most important question: Why have the Modrons abandoned their normal, lawful schedule to march years before they're due? TSR 2628

A whispered voice calls from a coffin bound in chains, urging the heroes into the depths of the Shudder Mountains, a place rife with superstition and forlorn secrets. In the shadowy, pine-grown valleys of the Deep Hollows lurk mysteries of a bygone age and a new evil emerging from the ruins of the past. The adventurers must plumb the mountains’ secluded reaches to root out this rising terror before its power comes to fruition. Standing in their path are cackling witches, subtle devils, lingering spirits, and a foul thing that moves in the night. Can the heroes appease that which lies within the Chained Coffin and thwart the dawn of a new and terrible age?

Who Disturbs the Slumber of the Forgotten King? Wolves prowl the graveyard of sleepy Kingsholm, and death lurks behind shadowed tombstones. Something has disturbed the sleepers in the mausoleum, and brave adventurers are needed to explore the catacombs beneath the graves and discover what evil stirs in the darkling depths. Part 1 of the Barrow of the Forgotten King series. Followed by the Sinister Spire.

Snakes fly, stones walk, and colossal monsters burrow in the world's crust - do these omens fore-tell catastrophe? Perhaps so, for now the dark elves walk in the sunlight, wearing armor that turns the shcaprest blades and strongest spells. They are poised to conquer the fabulous Hollow World. But what is this armor? How does its creation involve the ancient, mile-long Great Annelids, as well as those wondrous creatures, the feathered serpents? The mystery's solution draws your heroes across three thousand miles, from ruins to seaports, through the trackless caverns beneath the World's Spine, and finally to the eternal land of Nithia. There, your heroes discover the true meaning of... NIGHTRAGE! Nightrage is the second part of the far-ranging Blood Brethren Trilogy. You can play these three Hollow World modules in any order, or play this 64-page adventure by itself. You need the D&D Hollow World Campaign set to play. Easily adaptable to the AD&D game! TSR 9310

Something sinister is brewing in the Emerald forest! It starts off simple, as they do. A group of fresh-faced adventurers is tasked with clearing out rats in the tavern cellar. What they find down there is something more than they bargained for. Now, they have to make a perilous journey across an uncharted forest to face off against an unknown threat (it’s a swarm of BrainiumOGL Rats). The fate of the entire world might be at stake! (or that of a small hamlet, at any rate!) Ratcatchers is a 4-6 hour setting neutral one-shot adventure for four to five characters of level 1-2. It has been designed keeping in mind players new to the game. Features A 25 page full-color and fully illustrated PDF, a printer friendly B&W version, and a tested for screen readers accessible version. A beginner friendly adventure that hangs a lampshade on RPG tropes, then sets said lampshade on fire. A template to convert any beast into were-rat hybrids. Rat-bunny and rat-pigeon, a.k.a. Trash Gryphons included. Several colorful battle maps for VTT use. Terrible rat based puns. Content Warning: The intended tone of this adventure is a mix of horror and comedy. Where it exactly lies on the spectrum of horror to comedy is up to you, the DM, and your players. There is depiction of body transformation and body horror, parental neglect and tight spaces. Also, there are rats. Lots and lots of rats. Published by undeadR

Sometimes protecting the cargo is easy but getting the pay not so much. Work has been scarce, coin hard to come by, armor needs maintenance, weapons need to be sharpened and food is needed in the belly. Monsters on the road, on the other hand, are more and more common.

Damnation! The Companion that once stood as a beacon of hope and goodness above the city of Elturel has been extinguished and the entire city—along with its denizens—have been drawn into Avernus, the first layer of the Nine Hells! While those fortunate enough to have been outside of the city’s walls during its departure have been spared that fate, but they’re not yet out of danger! The refugees formed a caravan bound for the nearby city of Baldur’s Gate. Can you keep them safe from devils, bandits, and one another until they reach safety? Four One-Hour Mini-Adventures for 1st to 2nd Characters. Optimized for APL 1.

Kalakeri: The Forbidden Temple is a gothic horror adventure for 4-5 characters of 7-8th level. It can be played over the course of 8 hours for a one-shot, but works better when played slowly over the course of two games. This is the third part of the Carnival of Lost Souls campaign. It can also be played as a standalone adventure. Kalakeri: The Forbidden Temple features: Exploration of the ancient Greater Vochalam temple with a powerful eidolon guardian. Lots of dangers and rival explorers are waiting for the characters, among them the priests of Osybus and Firan Zal’Honan himself! Intense social encounters with the leaders of major forces of Kalakeri: Ramya, Arijani and Reeva, and the possibility to align with them. Random encounter table for Kalakeri travels, and mechanic for quick resolution of random combat encounters. New custom monsters to make combat encounters truly memorable and exciting. High-quality maps, also available in universal vtt format. Check out previous adventures in the series: Lamordia: The Hardest of Hearts and Dementlieu: Dance with the Devil! And look out for the next adventure in the Carnival of Lost Souls series: Valachan: Hunter’s Moon! It will be released in the next month. Once all four adventures are out, we will also release a special Campaign Guide, which will explain in detail how to best set up and play the campaign. However, if you want to start your campaign right now, don’t worry - we have included a short appendix at the end of each adventure that will explain the basics! Disclaimer: We are a team of writers from Ukraine, so the unprovoked war and senseless aggression of the terrorist state of russia influenced our initial timelines significantly. However, we are now as safe as we can ever be under the constant threat of missile strikes, and determined to finish the whole series! And after that - who knows, maybe even more cool adventures will follow ;) Made in Ukraine

The astronomer monks of Farsky failed for decades to tell the future by the stars. Desperate, they found a promising seer, and passed off her predictions as their own… until deadly illness struck. Unable to give up their lucrative scam, they trapped her spirit, which became a thing of evil: a banshee, whose howls foretold their doom. The party have heard rumors of a ruin, where once sages could answer any question… Notes by @Demian: Winner of One Page Dungeon Contest (OPDC) 2015. The adventure consists of a single small dungeon with 13 rooms and an exploration/time-based random Silence spell mechanic. It is themed around music and sound. Designed as a one-shot to be played in one 4–7 hour session.

Rumor has reached your ears that the legendary Amulet of Rafael is in this region. Further investigation has revealed that a reclusive nobleman in the north called Xantus is currently in possession of the item. While details are sketchy about the item, it is well known that quite powerful in the hands of a mage. You decide that you will go north and locate the “Ice Lord” and see if he is willing to part with the item.

A snowstorm ravages the Klavek Kingdom, betraying the forces of nature and blanketing the land in snow and ice, leaving the skeletons of towns in its wake. The PCs delve into the snow, only to find omens of worse things to come – a powerful white dragon is manipulating events to bring her frozen fortress into the middle of the kingdom – can the PCs stop her and her minions before she arrives to dominate the kingdom? Also included in Midwinter's Chill: A dragon egg, as well as detailed rules for how to care for, hatch, and train the dragon within! A new monster, the Murashyk, a guilt-ridden undead sure to lead the PCs to their doom. Three new magic items!  Teleportation spires , and two types of dragon-slaying medallions for your PCs to prepare for the challenges ahead! A new spell,  splice location , which allows you to shift entire buildings or even cities from one place to another! A new deity, Arnut, the goddess of winter and the north wind! Maps and Illustrations by 3x ENnie Award winning Cartographer Todd Gamble

Deep in the elven forests of Myereth, ancient rowan trees spread white boughs above a sacred site. Pillars of stone twist like some strange form of vine, curling among the branches and reflecting the light of a silvery moon. The forest is silent, and beautiful, protected since the dawn of time by a powerful Unicorn. The elven forest of Myereth is well known throughout the world as a safe haven of good and peace, a place where evil cannot stand to enter and where the trees weep healing tears upon those injured within its boundaries. Any player character elves know of the forest, its healing properties, and its legendary beauty. They may have heard of it as a legend, or they may have visited its mystic shrine when they were children, brought along on a pilgrimage by other elves. But something has gone terribly wrong. Refugees from Myereth, terrified and confused, are flooding into other elven cities. They speak of a great evil that has conquered the forest, one that has killed the body of the immortal Unicorn and tainted its spirit. Myereth runs with blood, they say, and the once-powerful rowan trees have begun to wither and die. In the center of the Rowan Grove, the bloodied bodies of the last elven warriors of Myereth lie scattered and broken. Those responsible call themselves the Servants of the Blood Moon, and they are led by a dark-robed sorcerer. The surviving elves do not know this evil man — all but one of those who fought against the Servants died — but they know that the sorcerer calls himself Tamarat. He has butchered the Unicorn, the spirit of the forest. The Myereth, and the elves, are dying.

Adventures in Hawk's Rest is a love letter to low-level D&D: Studio Ghibli meets the Shire meets Lost Mine of Phandelver. An open-world hexcrawl for characters of 1st to 2nd level, Hawk's Rest is intended as a prologue to a longer campaign, with seven keyed adventure sites and fantastic maps by Dungeon Baker (How to Defend Your Lair, The Lazy DM's Companion). Hawk's Rest is written for new and veteran players alike but avoids the usual pitfalls associated with 1st-level adventures: not only are encounters balanced to avoid character death, but most combats can be avoided entirely with clever roleplaying.

This adventure can be used in any setting that features landowning nobility as a social class. It focuses on the Firebird, a mythical creature from Slavic folklore similar to the phoenix. The characters begin inside a tailor’s shop where they’ve been gathered by Pero Toporov, the best tailor in the city of Krylo. The city is ruled by the confident and insensitive Baron Yuri, who commissioned Pero to create a beautiful cloak woven with the feathers of the Firebird, a creature known for its healing powers. Pero agreed on the condition that their work would be used to aid Yuri's citizens, who have been sick and ailing under Yuri's restrictive rule. Instead, the Baron took the cloak for himself. Pero is hiring the adventurers to help them break into the Baron’s fortress and steal the cloak back without being caught. The characters find a way inside the fortress and break into the dungeon, where the cloak is supposedly hidden away. Within the dungeon, the party finds the Firebird itself locked in a golden cage where Baron Yuri—wearing the magic cloak—is antagonizing it. Baron Yuri attacks them to protect his treasure and is not open to negotiation. However, the characters may try to befriend or capture the Firebird. If they sway the bird to their side it may help them fight the Baron. Once Baron Yuri is defeated, the characters can take the cloak for themselves or return it to Pero. Dethroning the Baron earns them the gratitude of the city’s people. If they return the cloak, Pero pays the adventurers and assures them that the cloak will be used for good from now on. Pgs. 173-179

A corrupt Duke of Lankhmar’s foibles paraded before the masses for their entertainment puts an acting troupe in trouble. Threatened by the insulted Duke and his private guard, the performers need assistance to make it through their final performance of “The Fiascos of Duke Hogfat.” With nobody else to turn to, the troupe hires the PCs as their evening’s protectors. Will the play end in a standing ovation or will the Duke and his thugs bring down the house on the troupe and their defenders? Officially licensed from the estate of Fritz Leiber.

What Makes Heroes into Villains? Damien Anthilas has fallen from ally to adversary, but something desperate in him has struck a chord with you. Why would he risk everything to steal the memories of the citizens of Anduria? Left with only a cryptic clue, the characters seek answers from the burned out remnants of his former home. Anthilas Manor is a place of dark magic and even darker history, where the ghosts of the past hold sway and the influence of the mad god is still felt to this day

The Iron Gods Adventure Path begins with "Fires of Creation," an exciting new adventure set in Numeria, land of barbarians and super-science! In the town of Torch, the settlement's unignorable tower of violet flame has gone out. The only clue to its disappearance is a newly discovered cave dug nearby. Are the heroes bold enough to unearth the otherworldly secrets that sleep beneath the city and reignite the fires of Torch? Or will their first foray into Numeria's ancient mysteries be their last?

Who Do You Trust? In the cool streets and blazing bazaars, the word is out: a great treasure has gone missing in the Everlasting City of the Cat, and some very ambitious people have set their sights on it. Many paws and claws are out, and everyone is sniffing around for something rich and strange. It’s an odd time for a catfolk thief and a gnoll merchant to make very tempting offers to strangers in town. Or, perhaps it’s not odd at all. Get caught up in the hunt with Cat and Mouse by Richard Pett and Greg Marks! A perfect introduction to the Southlands campaign setting, and it fits neatly into any desert city where cats are sacred and rats are cautious and sly.

A Maze of Tragedy and Mystery. While investigating a mysteriously abandoned mansion, the adventurers stumble into a tangled web of kidnapping, theft and murder. From a mansion with a deadly secret to the blood-stained waves of the high seas and an ancient, cursed citadel, the adventurers face a succession of deadlier and deadlier foes, with the rescue of innocents and the recovery of fabulous treasure as their ultimate rewards. A Family Affair includes a fully-developed town setting, numerous unique NPCs and a wide range of challenging opponents.

A new megadungeon from Three Castles Award Winner (2018) and Barrowmaze author Dr. Greg Gillespie! HighFell: The Drifting Dungeon is a 246-page classic megadungeon for use with any old school fantasy role-playing games/clone. The pages of HighFell are crammed full with new material, maps, and art, including a colour cover by Ex-TSR artist Erol Otus (that matches Barrowmaze Complete and The Forbidden Caverns of Archaia as sister-books). HighFell: The Drifting Dungeon will keep your players on their toes and your campaign going strong for years. HighFell is brought to you by the Old School Renaissance (so don’t forget your 10’ pole).