The End of the World Is at Hand! A hideous death cult has seized control of an ancient artifact-monument known as Tovag Baragu. The power behind the cult is the Old One himself, Iuz the Evil, demonic master of an empire. He's on an all-or-nothing quest for supremacy over the world—and the heavens beyond. To stop him, heroes must face horrors never dreamed of, journeying to a shadowed city where Death rules and the living cower. Here, Iuz will achieve his mad dream by destroying the imprisoned master of that alien citadel: Vecna, the mightiest lich, an immortal demigod. Two items exist with the power to stop Iuz—the Eye and the Hand of Vecna—but using them carries fantastic risks. Not even the gods know what will be unleashed when these items are fully activated. Die Vecna Die! takes the heroes from the Greyhawk campaign to the demiplane of Ravenloft and then to the Planescape city of Sigil. However, none of the material from those settings is required for play. TSR 11662

The Merfolk Queen asks adventurers to help retrieve merfolk roe (eggs) from a sahuagin raiding party lead by a sahuagin priestess, with custom water-based magic items as reward. The adventure is for three to four 5th level adventurers at a hard difficulty. Pgs. 137-145

The Sinking of the Mercy is a sandbox style adventure with multiple side treks to give higher level characters a challenge. After recuperating from their last adventure the PCs find themselves at the port city of Covalush. A group of heavy storms have been battering the coastline for a while a few banged up ships have limped into port. The sailors have found the taverns and have been retelling the story of a sunken treasure ship they were travelling with. As the storms start to weaken the possibility of a treasure hunt has intrigued the PCs…

Nightmares that kill, a mysterious thief that only steals knick-knacks, tales of a huge beast terrorising fisherfolk, an inn with disappearing guests, discoveries of hidden magic portals and rumours of an assassin at large: None of these things are enough to stop the ever-flowing tide of traders and travellers crossing the Bridge of Fallen Men, but its protectors - Cormyr's Purple Dragons - are short on time, and courage... ...will adventurers answer the call?

After saving Earl Feva D'Auvay’s bacon at Curwood, the ruler has graciously offered his waterside retreat to the party. A few days of rest and relaxation will help you recover from the hazards the undead group caused. With servants waiting on you hand and foot you enjoy the easy life. A few days into your vacation the Earl’s new toy arrives, a glass bottomed boat. After taking it out for a quick spin you quickly discover that Crater Lake holds the ruins of an old city. It would appear that your vacation will give way to your curiosity…

The sleepy village of Raven's Lake has a secret: A terrible god lives in the depths of the settlement's namesake. The citizens of Raven's Lake know that something lives in the lake. People who go out on the lake after dark go missing far too often and frequently turn up weeks later with no memory of where they've been. The local church of St. Cuthbert has been abandoned no fewer than seven times in the last two years, each time its lone cleric packing hastily and fleeing town without a word. Adventurers who come to Raven's Lake have a habit of vanishing forever. The truth is that something does indeed live in Raven's Lake but it is far from a deity. It's an exiled aboleth by the name of Zlorthishen. Pgs. 33-36

The ancient world of Harth withers beneath its dying sun…but it’s not dead yet. The land is still riddled with villages in danger, cultists in caves, angels gone mad, eldritch horrors making strange deals, raging dragons, bandits in the woods, and cruel monsters lurking in every shadow. These 13 adventures span a wide variety of locations, environments, creatures, and genres. They are meant for use as quick-play sessions or one-shots, or to be dropped into campaigns as side-quests. These are linear dungeons and mini-quests full of interactivity and strangeness, encouraging exploration, risk-taking, and creative combat. ADVENTURE TYPE: One-Shot / Low Level / Combat / Exploration / Village / Wilderness / City / Subterranean / Dungeon Delve DESIGN NOTES These 13 adventures are intended for low-level characters around Level 3 Overall, these adventures tend to be linear dungeon delves in caves or single buildings 93 unique encounter locations 69 original magic items 71 original monsters (with 28 illustrations) 13 maps/diagrams Each adventure runs 2-4 hours in length

The Submerged Spire of Sarpedon the Shaper lies to the west of the Isle of the Dismemberer. On the northwestern shore of this island, crumbling steps spill from the shore directly into the sea. There, a seaweed choked stone path can be glimpsed winding down into the depths. At low tide, a quarter mile along the path, a lone onion dome may be seen poking through the waves. In the twilight of the sorcerer lords, The Submerged Spire was the jewel of the Shattered Isles. Within his submarine redoubt, Sarpedon penetrated ever deeper into the organic mysteries. Now, its for- lorn dome the roost of seagulls, its secrets slumber beneath the waves.

The lerendi princess, Corinna, has disappeared. She set sail aboard a ship of the Minrothad Guilds - the guilds whose ships have been pirated and plundered for many weeks. Trade is horribly disrupted as many ships leave, never to be seen again. The guild masters now call for adventurers of great skill and renown. They offer small fortunes to any who can help them discover who is pirating their ships. But most importantly, to any who can rescue the princess. Can you and your party of adventurers defeat the dangers that lurk in the dark depths of a terrifying sea? Or will you find a watery grave within the cold confines of a murky sea floor? This game adventure contains special rules for underwater adventuring. TSR 9079

The Dark Tide of Damodan is an underwater rescue adventure, where time is of the essence. A mysterious disease is killing of locals and visitors alike in the port town of Havenword. While the adventurers are in town, Havenword is attacked from the sea by nasty fish-headed creatures. After the battle, the characters learn that the creatures dragged off several townsfolk. They have been tasked with finding the captives and returning them safely. The only problem...they were taken out to sea. The characters must delve into the depths into an underwater keep to rescue the captives. Using the knowledge the captives to help locate one another, all the while, avoiding the sinister Damodan's forces. Will the characters turn the tides in their favor? Or will they swim with the fishes? Published by Crit Academy

Strange calamity has come to the Moonstone Reach. What was once a foreboding forest is now completely underwater, the gods Umberlee and Mielikki locked in dispute over the wondrous biome. Umberlee calls forhomage and claims dominion over what she sees as rightfully hers.

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

Ten years ago, zombies arose from the foamy sea to take vengeance against the inhabitants of Firewatch Island. Now, they have risen again, just in time to welcome the visiting player characters! Will your heroes manage to escape the island with their lives (to say nothing of their delicious brains)? The PCs have to clear the island and learn its secrets, then defend it against an undead attack and then travel to the bottom of the ocean to seal Dagon's Maw! Pgs. 19-50 Updated to 5th Edition in Ghosts of Saltmarsh

Ducklings. It's not too late too close this page, and go and find an adventure about happy-go-lucky halflings, or emotionally stable young adventurers. This is not that story. You can still walk away, and find some other engagement that your players will forgive you for running. Open this little document, and you will be introduced to the wretched streets of Elysium. Home of aberrations, mystery and futile quests for meaning in the drowned streets of the tortured city. Escape is unlikely. Enjoyment fleeting. I implore you, turn away and don't look back. Mind flayers stalk streets plagued by invisible death. Curses bubble from ancient evils sleeping beneath the water. Questions lead to questions, which evolve into answers you will only regret asking for. Go whilst you still can. There is nothing here for you but death. Prologue: Welcome to Elysium Chapter One: The Crooked House Chapter Two: The Broken Prison Chapter Three: The Temple of the Gaunt Silhouette Chapter Four: The Grand Library Chapter Five: The Adamant Asylum Chapter Six: The Dancing Spider Chapter Seven: The Undercity An adventure for characters of level 15+ Contains: An introduction to Elysium, a Ravenloft domain filled with eldritch mystery and drowned secrets, including Life In Elysium, The Rule Unspoken and the Marks of Horror that set Elysium apart. Guidance on Madness in Elysium, with Elysian Madness tables for your horror/amusement. A list of Elysian locations, some of which will be expanded in later releases. Elysian random encounter tables, day & night. An Elysian Wild Magic table, miserable magic items and tragic trinkets. The first installment - The Crooked House, in which we meet the Duchess and her parade of dead husbands. The seconf installment - The Broken Prison, where the shadows of gods walk amongst men The third installment, The Temple of the Gaunt Silhouette, where broken fragments of reality are reached by strange avenues. The fourth installment, The Grand Library, where the things we wanted to forget prove impossible to truly banish. The fifth installment, The Adamant Asylum, where medicine and madness meet. The sixth installment, The Dancing Spider, in which there is no rest for the wicked. The seventh installment, The Undercity, where your worst suspicions are confirmed. Three new character backgrounds: the Eldritch Detective, the Information Broker and the Tempter of Fate. The long-suffering Elysian character race, with two subraces. The first One Page Woes collection, included here for your convenience, which contains thirteen reasons to be thoroughly miserable.

A recent earthquake has brought forth ancient evil from beneath the waves, to terrorize a sleepy coastal town. People are disappearing. The heroes will sail to an ancient, steam-powered temple in the ocean. They'll encounter mad fishmen, deadly traps, and ancient horrors that slumbered until now.

Terror Under the Sea The peaceful undersea village of Sequavia has been mysteriously abandoned. It looks like all of its Cheltarian residents have just stopped what they were doing and left. It’s up to a party of stalwart undersea adventurers to find where they all went, and bring them home. This Tales of the Valiant Compatible One Shot Adventure Provides: • A small dungeon for PC’s to explore • Statblocks for important NPCs. • 8 magic items that aren’t what they seem

A band of shipwrecked adventurers awake to twilight on an uncharted jungle island to the Northwest of the Nalanthars with amnesia, little do they know the amnesia is recurrent at the completion of each long rest until an ancient curse powered by an incomplete Mythallar is lifted.

A 20-page adventure for OSE Save the wizard! A sunken cathedral on a quiet mountain lake hides a long forgotten temple to Mathanoga, God of Knowledge and wizardry. Abandoned by Man for centuries , but protected by the legend of man-eating fishmen lurking in it. Or until a few weeks ago the young wizad Elric embarked on its expedition. With help from the accademy of Greykeep he found the temple and began to explore it, hoping to uncover its ancient magical secrets. Now the wizard is missing and the accademy has put a bounty on its head: its weight in silver to whoever will find him and bring him home alive and well. Find magical secrets! Deep inside the temple are stashed many magical items, all sacred to the fishmen dwelling there, all worth dying for. Save Elric and the treasures will be yours! The Sunken Temple is an expert level Old School Essentials adventure for a party of 1-4 players. Perfect for a one shot or a random encounter in an hex crawl.

The Haunted Hamlet and other hexes details four unique modular locations for your game. Made for old school essentials, but can easily be used with other old-school systems or even 5E. The four locations detailed in the zine focus on gameable content and being easy to use at the table. The locations are not connected to one another and can be sprinkled onto your campaign map however you like, or run as one shots. The PDF is graphic and art heavy and utilizes random tables and other tools to make it easier for GMs to run in a pinch. Details: 40 pages Single column text 8.5 x 5.5 aspect Black & White Bookmarks Four hex locations Random tables A rival NPC party A sky merchant A one page town Two hirelings

A Twisted Level 4 Adventure of Science and Sanity Lost by Infinite Initiative They wanted perfection. They got him instead. Beneath the sea lies a sunken research city—once a marvel of arcane progress, now a decaying labyrinth of broken glass, failed experiments, and whispers in the dark. At its heart, a mad scientist clings to his vision, bending corpses and constructs to his will. The players must brave an abandoned lighthouse, activate a long-dormant portal, and descend into the abyssal halls of a drowned facility. But something stirs in the tanks… and it’s not alone. Inside the Adventure: A puzzle-filled lighthouse and a cinematic octopus encounter A non-linear underwater dungeon teeming with mutated horrors Tactical environments: flickering labs, crumbling windows, and flooded chambers A final boss fight against a deranged scientist and his unstable Abomination Includes new stat blocks and a unique magic item: the Cloak of Protection (as a warded lab coat) This is a dark, atmospheric one-shot perfect for groups who enjoy horror, puzzles, and morally twisted villains. Part of the Thirsty Tiger Tales series by Infinite Initiative.