4e's 'Expedition to the Barrier Peaks'... on the moon! Using the technology of a lost civilisation, illithids have been cloning influential people. The PCs must navigate a strange sci-fi environment and defeat the illithids. Additional items & malfunction rules can be found in Dragon #410 & Gamma World 7e.

"The Keepers of the Celestian Order, valiant defenders dedicated to destroying horrors from the Far Realm, have trapped a beholder in its lair. However, the evil aberration has proven far more dangerous than expected, and the Keepers need the help of adventurers to end the threat of Omaranthax once and for all. This Dungeons & Dragons Roleplaying Game adventure, created for Free RPG Day 2012, pits player characters against a mutated beholder and its vile underlings. Although set in the Forgotten Realms campaign setting, the adventure can be easily adapted to any* D&D world." *: The adventure mentions that it is suitable for any setting touched by the Spellplague.

In ages past, the wizard Karavakos made a deal with devils, which resulted in him being trapped in an extradimensional pyramid, unable to escape. His only hope for escape is to lure adventurers into the Pyramid, in hopes that they will destroy his splinters and return his power to him. But his wife Vyrellis, whom he slew in a rage when the Pyramid formed, still lingers in spirit and wants nothing more than to see him laid low... Although set to allow PCs to just fight through each encounter, tips are included for PCs negotiating with the factions trapped in the pyramid.

Centuries ago, a green dragon terrorized the civilized lands near its lair. As the beast grew in power, countless cult followers gathered. With the help of its worshipers, the dragon transformed into a runescribed dracolich. The dragon and its cult grew larger and more powerful over the centuries. This, of course, led to war with the surrounding nations. After terrible battles and much loss, the cultists were slaughtered and the dragon destroyed, but its phylactery could not be found. The beast reformed, gathered cultists anew, and again was defeated. The phylactery still could not be found. This time, the powers of civilization decided not to destroy the beast, but to trap it, locking it away and setting various guards. Recently, a divination ritual performed by someone the PCs respect revealed that great peril will arise if a creature lairing in Mount Sorrowspire (the dracolich) is not destroyed. Pgs. 180-185

A nest of vampires has claimed a dark forest and the surrounding human towns as its domain. Some of the local residents revere the vampires and serve as daylight guardians and spies. However, most of the townsfolk live in a state of dread. Those townsfolk have finally scavenged enough valuables to hire a band of adventurers to destroy the nest. Pgs. 66-71

“Den of the Destroyer” is the sequel to “The Lost Mines of Karak,” continuing the unfolding story of the Scales of War adventure path. In this adventure, the PCs are called back to Brindol by a surprising summons. There they learn that a platinum sword they had collected back in "Rescue at Rivenroar" is no mundane item - the blade is sentient! The blade charges the PCs to undertake a dangerous mission to an abandoned githzerai fortress in order to perform a ritual to awaken the blade's true form. Along the way, they must deal with bounty hunters hired by an old enemy (from "Shadow Rifts of Umbraforge"), and confront a vile gang of gnolls terrorizing Elsir Vale. Pgs. 14-54

A band of evil fey, led by a corrupt bralani, has raided an eladrin city and kidnapped several respected elders. The fomorian king claims the rogues don’t act on his behalf, but the eladrin city threatens the fomorians all the same. To prevent war, the PCs travel through the Underdark of the Feywild—a wondrous place filled with the beautiful and the horrifying—in search of the evil fey and their captives. Pgs. 96-101

A short 2-combat side trek: After confronting an ettin and its pet owlbear, the PCs descend into an ancient ruin holding a portal to another plane, protected by a naga, an eidilon and a sea of serpents.

The seaside town of Ashenport has a troubled past and a dark secret. If you spend a night in Ashenport, you just might not wake up the next morning. "The Last Breaths of Ashenport" is an adventure of survival and alien horrors. The adventure is self-contained and can be placed in any setting. Pgs. 70-105

Every priest in the city dreamed last night of a forgotten temple carved into the side of a nearby mountain. In the dream, a storm raged deep within the temple, and the dreamers knew instinctively that evil forces sought to unleash that storm upon the surrounding lands. Pgs. 120-125

A newly constructed temple of Bahamut lies along a road outside a rural township. As the PCs approach the place, a scream for help erupts within it. Pgs. 60-65

At Restwell Keep, you've heard that fortune and glory await those bold enough to brave the dangers of the Chaos Scar, a valley carved ages ago by a fallen star. The same tales warn that this Chaos Scar draws wickedness to it. Perhaps you can help stem this tide... and gain treasure along the way. While the location is a different keep, this adventure is an homage to B2 Keep on the Borderlands(https://adventurelookup.com/adventures/b2-keep-on-the-borderlands)

Navigate court intrigue in the Shadow Fey realm to save the city of Zobeck. Earn status in the court through duels, quests, and negotiation to survive the machinations of factions and nobles to gain freedom for the city of Zobeck from the King and Queen of the Shadow Fey. Also available in 5e format.

This deluxe adventure takes heroes into the ruins of Gardmore Abbey, a monastery that was once the base of a militant order of paladins devoted to Bahamut. According to legend, the paladins brought a dark artifact back from a far crusade and stored it in their abbey for safekeeping, and evil forces gathered to assault the abbey and take it back. What the legends don’t tell is that this artifact was actually the Deck of Many Things, a force of pure Chaos. This adventure brings characters into the extensive dungeons beneath the ruins - dungeons that are warped and twisted with the raw forces of Chaos surrounding the cards of the deck.

Stonefang Pass wends its way through the mountains of the Stonemarch, home to brutal tribes of orcs. The time has come to clear the pass and gain a foothold, so that it can be used for trade between the town of Winterhaven and the lands beyond the mountains. Brave adventurers are needed to rid the pass of monsters and liberate Stonefang Keep from the orcs. Who’s up for the challenge?

From time immemorial, the rulers of the mortal world have been counseled and tempted by capricious primordial spirits who rule over the elements. The greatest and most sinister of these was a half-kraken medusa known as the Maelstrom Queen, who sought to supplant the mortal races with her own line of immortal tentacled monstrosities. On the verge of her ultimate triumph, when the leviathans at her command rose from the depths, a legendary assassin murdered the Maelstrom Queen in her half-submerged palace with her own weapon. But the primordial mistress refused to let something as trifling as death put an end to her designs. Every 13 years, she regenerates enough mystic power to rise again, and the world’s greatest heroes are sent to murder the Maelstrom Queen once more.

In this adventure, the PCs discover that not all souls rest easy, particularly those spirited away to Nightwyrm Fortress. To learn the truth, players must pierce death's veil itself and enter the Shadowfell, where sinister echoes of life wing through eternal gloom. This adventure can be run as a stand-alone adventure or as Part Three of a three-part series of adventures (starting with P1 King of the Trollhaunt Warrens(TM) and P2 Demon Queen's Enclave(TM)) that spans 10 levels of gameplay.

In Treasure of Talon Pass, the player characters explore an ancient mountain garrison in search of a jade chalice reputed to be worth a small fortune. But the path to the jade chalice isn’t easy. A dragon and its kobold minions have taken up residence in the garrison, and some undead soldiers from long ago still haunt its halls as well. Nor are the PCs the only ones seeking the jade chalice. A band of orc mercenaries known as the Nightfists are after the chalice . . . and they arrived at the dungeon only minutes before the PCs

An ancient cave, defended by ancient death traps and weird arcane seals conceals the antediluvian vault of an archlich whose reign predates recorded history. Undisturbed for untold eons, the vault now stirs thanks to the machinations of cultists who have meddled with secrets best left undisturbed... This module sends the heroes to an ancient cave occupied by cultists dedicated to the Mists of Madness. Defended by ancient death traps and weird arcane seals, the caves conceal an antediluvian vault, the resting place of an archlich whose reign predates recorded history in the Known Realms. Undisturbed for untold eons, now the machinations of the cultists and their eladrin master threaten to awaken the archlich, to dire ends that none can predict.

There was no greater scholar, explorer, or collector of antiquities in the area than Hallomak Stromm. The enigmatic Stromm recently passed away, and the PCs have received personal invitations to appear at the public reading of his will. Pgs. 72-77