Dungeons & Dragons Modules Price Guide – Embarking on a journey through the hallowed halls of Dungeons & Dragons history, we find ourselves amidst a treasure trove of adventures that have not only defined the tabletop role-playing game experience but have also become coveted collectibles in their own right. From the perilous depths of the Tomb of Horrors to the enigmatic corridors of the Temple of Elemental Evil, each module carries with it tales of heroism, treachery, and the endless pursuit of adventure.  In this Dungeons & Dragons Modules Price Guide, we delve into the heart of what makes these adventures so special and sought after. Whether you’re a seasoned collector looking to complete your collection, a new enthusiast curious about the game’s rich legacy, or even a player seeking to revisit the classic challenges and stories, this guide aims to provide you with a comprehensive overview of the market values and rarity of these iconic modules. We initially focus on the foundational B-Series designed for beginners, through the epic narratives of the A and G series, to the specialized adventures of the S, T, I and X series.

Dungeons & Dragons Modules Price Guide – The price guide reflects ebay prices and auction prices for sold modules. It would be quite possible to create a page for each module with the variation of prices we have found, and the different printings of each module. The estimates will focus on very fine and near mint editions.

S-Series (Special)

• S1: Tomb of Horrors (1978) – An extremely challenging dungeon crawl designed by Gary Gygax, filled with deadly traps and puzzles, culminating in a battle against the demilich Acererak.
• S2: White Plume Mountain (1979) – A quest to retrieve three legendary weapons, set in the titular volcano and filled with unique puzzles and monsters.
• S3: Expedition to the Barrier Peaks (1980) – A unique adventure that blends science fiction with fantasy, as players explore a crashed alien spacecraft.
• S4: The Lost Caverns of Tsojcanth (1982) – An exploration of the caverns in search of the legendary wizard Iggwilv’s lost treasure, introducing numerous new monsters.

A-Series (Against the Slave Lords)

• A1: Slave Pits of the Undercity (1980) – Heroes delve into the depths beneath a ruined city to disrupt the operations of slavers.
• A2: Secret of the Slavers Stockade (1981) – The adventure continues as players track the slavers to their fortress, uncovering more of the organization’s dark secrets.
• A3: Assault on the Aerie of the Slave Lords (1981) – A direct attack on the slavers’ remote island stronghold, facing the leaders of the slaving ring.
• A4: In the Dungeons of the Slave Lords (1981) – An escape adventure from the collapsing dungeons following the climactic confrontation with the Slave Lords.

B-Series (Basic)

• B1: In Search of the Unknown (1978) – A foundational adventure where players explore the mysterious Quasqueton, the dungeon lair of a long-vanished hero, filled with unknown dangers and hidden treasures.
• B2: The Keep on the Borderlands (1979) – This iconic module sets adventurers near a frontier keep, from where they delve into the Caves of Chaos, a complex of monster-infested caverns, challenging players with a diverse array of tactical encounters.
• B3: Palace of the Silver Princess (1981) – Set in the valley of Haven, players uncover the mysteries and dangers within a palace touched by a mysterious disaster. Notable for having two versions, the original orange cover, which was recalled, and the more common green cover edition.
• B4: The Lost City (1982) – Deep in the desert, adventurers stumble upon a buried pyramid, leading to an ancient, underground city. Inside, they face the challenges posed by a cult and the secrets of the lost civilization.
• B5: Horror on the Hill (1983) – On a hill overlooking the River Shrill, this module combines wilderness adventures with dungeon exploration as players investigate the ruins atop the hill and the dungeons beneath.
• B6: The Veiled Society (1984) – Taking place in the city of Specularum, players find themselves entangled in the intrigues and power struggles of the city’s factions, offering a more urban adventure with a focus on role-playing and investigation.
• B7: Rahasia (1984) – Heroes are tasked with rescuing two elven maidens from the clutches of a wicked witch, in a tale of magic, mystery, and dark forests filled with elven lore.
• B8: Journey to The Rock (1984) – Adventurers are sent to investigate the Rock and its dungeons, a place rumored to be filled with treasures and dangers, where they confront a new threat to the surrounding lands.
• B9: Castle Caldwell and Beyond (1985) – A compilation of five mini-adventures set around the newly built Castle Caldwell, offering a variety of challenges for new players and Dungeon Masters.
• B10: Night’s Dark Terror (1986) – A wilderness adventure transitioning players from Basic to Expert rules, set in the Grand Duchy of Karameikos, involving the heroes in a larger narrative of land disputes and ancient evils.
• B11: King’s Festival (1989) – Designed to introduce players to Dungeons & Dragons, this module involves the heroes in protecting the village of Stallanford from marauding creatures as they participate in a grand festival.
• B12: Queen’s Harvest (1989) – The sequel to B11, where the heroes embark on a quest to return a lost prince to his rightful throne, facing numerous dangers along the way.

G-Series (Giant)

• G1: Steading of the Hill Giant Chief (1978) – Players are tasked with ending the threat posed by a group of hill giants, the first step in a larger battle against giantkind.
• G2: The Glacial Rift of the Frost Giant Jarl (1978) – The journey continues into the frost giants’ domain, aiming to disrupt their evil plans.
• G3: Hall of the Fire Giant King (1978) – The conclusion of the giant series, where players infiltrate the fiery stronghold of the fire giants.

T-Series (Temple)

• T1: The Village of Hommlet (1979) – A preparatory adventure leading players to the larger threat of the Temple of Elemental Evil, introducing them to the village of Hommlet.
• T1-4: The Temple of Elemental Evil (1985) – An expansive campaign that sees players confronting a cult dedicated to unleashing elemental evil, set in a sprawling and dangerous temple complex.

I-Series (Intermediate)

• I1: Dwellers of the Forbidden City (1981) – In the heart of a deadly jungle lies the Forbidden City, a lost metropolis filled with treasures, secrets, and factions of warring inhabitants. Adventurers must navigate this perilous urban landscape, where the discovery of a hidden yuan-ti civilization awaits.
• I2: Tomb of the Lizard King (1982) – The lands are plagued by raids and disappearances, tracing back to the sinister Lizard King. Heroes are called to venture into his cryptic tomb, a dungeon filled with traps and dark magic, to end his reign of terror.
• I3: Pharaoh (1982) – The first part of the Desert of Desolation trilogy, this module transports adventurers to a vast and ancient desert tasked with lifting a curse from the tomb of a long-forgotten pharaoh. The journey is fraught with illusions, traps, and the undead.
• I4: Oasis of the White Palm (1983) – Continuing the Desert of Desolation narrative, players seek refuge and answers in the mystical Oasis of the White Palm. Here, intrigue and prophecy propel them towards the climax of their desert saga.
• I5: Lost Tomb of Martek (1983) – The trilogy concludes with the adventurers navigating the dangers of a magical desert to reach the Lost Tomb of Martek. Inside, they face the final tests and the wizard Martek himself, whose astral entrapment holds the key to their quest.
• I6: Ravenloft (1983) – A seminal module that introduced the gothic horror setting of Ravenloft. Players are invited to Castle Ravenloft to face the vampire Strahd von Zarovich in a story-rich adventure that blends horror, romance, and tragedy.
• I7: Baltron’s Beacon (1985) – Adventurers are drawn into a plot revolving around a mysterious beacon, leading them through dangers to uncover an artifact’s power and the truth behind a looming threat.
• I8: Ravager of Time (1986) – In a coastal town menaced by temporal disturbances, the players investigate the cause, confronting the Ravager of Time to restore order and prevent their own erasure from history.
• I9: Day of Al’Akbar (1986) – Set against a backdrop of a severe drought, this adventure has the heroes in search of the magical artifacts of Al’Akbar to bring relief to the land, facing a series of moral and physical challenges.
• I10: Ravenloft II: The House on Gryphon Hill (1986) – The sequel to Ravenloft, this module sees the return of Strahd in a mysterious new setting, combining elements of mystery and horror for a uniquely atmospheric experience.
• I11: Needle (1987) – An alien mystery unfolds on a secluded island, where the adventurers confront the Needle, a crashed spaceship’s survivor, in a blend of science fiction and fantasy.
• I12: Egg of the Phoenix (1987) – A multi-dimensional quest to recover the mythical Egg of the Phoenix, offering players a narrative-rich adventure that spans across time and planes.
• I13: Adventure Pack I (1987) – A collection of short adventures providing a variety of challenges, from diplomatic missions to classic dungeon crawls, suitable for integrating into ongoing campaigns.
• I14: Swords of the Iron Legion (1988) – Set in the Forgotten Realms, this anthology presents a series of military-themed adventures that have players battling alongside the legendary Iron Legion.

The Expert set of Dungeons & Dragons modules was designed to take players and their characters beyond the basics into more complex adventures, often featuring expanded exploration, deeper narrative elements, and greater challenges. Here’s a detailed look at the series, with their publication dates and descriptions, capturing the essence of the adventures meant for characters venturing into the intermediate levels of play.

X-Series (Expert)

• X1: The Isle of Dread (1981) – A pioneering module that introduced players to an open-world exploration on a mysterious island filled with dinosaurs, ancient ruins, and the hidden temple of an evil cult. It’s a quintessential adventure of survival and discovery in uncharted territory.
• X2: Castle Amber (1981) – Players find themselves trapped in the bizarre and eerie Castle Amber (Château d’Amberville), where they must navigate through strange magic, peculiar family members, and dimensional rifts to escape.
• X3: Curse of Xanathon (1982) – This adventure tasks players with lifting a curse from the city of Rhoona, requiring diplomacy, investigation, and the unraveling of a deity’s displeasure, presenting a blend of urban adventure and mythic quest.
• X4: Master of the Desert Nomads (1983) – The beginning of a two-part saga where the heroes must confront a warlord leading a vast army across the desert, threatening the lands beyond. It’s a high-stakes adventure that pits players against a tactical and environmental challenge.
• X5: The Temple of Death (1983) – Continuing from X4, adventurers pursue the warlord into the heart of a deadly jungle to stop a diabolical plan at the Temple of Death, combining elements of exploration, combat, and intrigue.
• X6: Quagmire! (1984) – Set in the titular city of Quagmire, players navigate the treacherous swamps to uncover the fate of the vanished city, dealing with ancient curses and hidden dangers.
• X7: The War Rafts of Kron (1984) – An adventure that takes players to the high seas, where they must battle pirates, navigate fleets, and uncover the secret of the War Rafts of Kron, blending naval warfare with exploration.
• X8: Drums on Fire Mountain (1984) – Introducing a volcanic island setting, this module pits adventurers against a cult that threatens the surrounding islands, combining tropical exploration with the urgency of thwarting a cult’s deadly plan.
• X9: The Savage Coast (1985) – Players explore the Savage Coast, a land of swashbuckling pirates and ancient curses, in an adventure that emphasizes exploration, diplomacy, and the uncovering of lost secrets.
• X10: Red Arrow, Black Shield (1985) – A campaign-scale war game module where players find themselves in the midst of a continent-spanning conflict, requiring strategy, diplomacy, and leadership as much as bravery in combat.
• X11: Saga of the Shadow Lord (1986) – A story-driven module that involves players in the struggle against the Shadow Lord, an entity threatening to engulf the land in darkness, where heroes must rally forces and uncover ancient relics.
• X12: Skarda’s Mirror (1987) – An adventure that revolves around a magical mirror, capable of transporting players between worlds. The heroes must navigate alternate realities to stop a villain’s plan.
• X13: Crown of Ancient Glory (1987) – In this module, players are drawn into a kingdom’s succession crisis and must locate the Crown of Ancient Glory to ensure the rightful ruler ascends the throne, mixing questing with political intrigue.

Related
The Rising Value of Classic D&D Modules A Collector’s Guide to S1-S4