Eternally does the Lord of Nessus scheme, and his designs are for all eternity; In the pit of Hell do the devils teem round his throne, and his reign is unchallenged; By the eight Dark Ones is he held supreme, and his name (speak it not!) is Asmodeus. - From "The Canticle of Thumis," 142:15 To some, justice is more important than glory, duty is more important than desire, and goodness is more important than life. The great paladin Klysandral was such a man. But even the sleep of death, at the end of a long lifetime spent battling evil, did not bring peace to Klysandral. During his funeral, the entire Temple of Neheod was dragged by terrible magic into the Nine Hells, along with the soul of Klysandral and scores of living mourners! What unearthly motive could be behind this tragedy? Only the bravest, strongest, and most resolute heroes will have the mettle to find the answer. Along the way, they will meet the enigmatic wizard Emirikil the Chaotic, sail aboard the fiendish ship Demonwing, and finally face the horrific minions and overwhelming terrors of Hell itself. Only the path of light can lead the bravest of the brave into perdition and safely out again. Step wisely, and walk in justice.

Doomguard factioneers steal an ancient relic from the church of Fharlanghan as part of an apocalyptic plot involving the Harbinger House, and a group of Clueless adventurers chase them into Sigil on their quest to recover it. Celestian's Compass is a free one-shot adventure that was released for Free RPG Day 2017.

In which the Many seek the One, and the Heroes must retrieve a Sword lost amid myriad Threats to the Flesh. Chapter II of the "Well of Worlds" adventure anthology.

A Planescape adventure for 4-7 PCs of levels 9-12 (about 60 total levels). While the module begins in the planar city of Sigil, most of the action takes place in Vudra, a layer of the Abyss. The PCs start in Sigil, tasked to find a vanished brother, and the trail leads to Vudra where the layers demonic ruler gathers magical blades for a terrible vengeance plot. Pgs. 32-58

A Conspiracy of Doors is a Dungeons & Dragons adventure for five player characters of 11th level. It can serve as an introduction to Sigil, the City of Doors, as well as a group of adventurers' first taste of action at the paragon tier.

We get it. Factions are an integral part of D&D, but it's not always clear how to use them in your campaigns. Luckily, Factions of Sigil has you covered for each of the twelve main factions found across Sigil and the Outlands! This supplement goes over the various rules and lore around the primary factions found in Sigil and the Outlands, making it easy for any new or veteran DMs to integrate the factions more into the core stories being told, and making them feel more useful for the players that choose to join. In this adventure, the Heralds of Dust in Sigil ask the characters to investigate and end the disappearances in secret crypts under Sigil.

Four doors of mystery appear in the Cage. They lead to four adventures, if a basher has the dark of them. "These aren't doors in the traditional sense, cutter, but they're portals just the same. They appear for a short time every 500 years, popping up in different parts of Sigil. Each hides a mystery that's waiting to be solved, and together they just might hold the key to a secret of the multiverse. All a body's got to do is tumble to the right keys, open the doors, and face down the Unknown." - Estavan, merchant lord Doors to the Unknown is a collection of four Planescape adventures that can be played separately or as a mini-campaign. When four doors appear in the Cage, the barmies crawl out of the shadows, and the heroes get drawn into events that could have consequences for the entire multiverse. Each door leads to a different plane and a different deadly challenge for the player characters. Together they offer a way to stop an ancient menace before it strikes again.

We get it. Factions are an integral part of D&D, but it's not always clear how to use them in your campaigns. Luckily, Factions of Sigil has you covered for each of the twelve main factions found across Sigil and the Outlands! This supplement goes over the various rules and lore around the primary factions found in Sigil and the Outlands, making it easy for any new or veteran DMs to integrate the factions more into the core stories being told, and making them feel more useful for the players that choose to join. In this adventure, the characters ally themselves with the Doomguard of Sigil and are sent to the Tomb of Bardarock in the Outlands, a former member turned lich who must be stopped.

Wherein the Heroes learn that the Coils of Love wrap 'round Fiends and Friends alike, and may undertake to aid in a secret Correspondence. Chapter III of the "Well of Worlds" adventure anthology.

We get it. Factions are an integral part of D&D, but it's not always clear how to use them in your campaigns. Luckily, Factions of Sigil has you covered for each of the twelve main factions found across Sigil and the Outlands! This supplement goes over the various rules and lore around the primary factions found in Sigil and the Outlands, making it easy for any new or veteran DMs to integrate the factions more into the core stories being told, and making them feel more useful for the players that choose to join. A cult of star spawn has popped up in Sigil, and the Hands of Havoc have asked the characters to destroy it.

Looking for a little extra jink and maybe some excitement? It seems the Doomguard lost track of their coveted ship of chaos. It's flying about the abyss, driving the local tanar'ri even more barmy than they already are. Several factions want to get their hands on the Doomguard's stake, so there's bound to be a few job offers for bloods looking for a little action. Every sod's got a tale to tell about the abyss—it's the sinkhole of the multiverse, after all, peopled with every kind of scum a body can imagine and a few he can't. Never been there? Well, there's no time like the present. *** "In the Abyss" is a Planescape adventure for a party of four to six characters of levels 8 to 10. A simple errand to salvage the lost ship of chaos allows the player characters their first opportunity to explore the most notorious plane of them all. Of course, complications are as inevitable as the tanar'ri! The Planescape Campaign Setting and Planes of Chaos boxed sets, as well as the Planescape Monstrous Compendium Appendix, are required to run this adventure. TSR 2605

In the Outer Planes, a holy sword can be a fiend's best friend, especially when the owner wants it back? Sneaking into the second layer of foul Bagtor ain't easy, but with a little help from the right high-up men, it can be done. 'Course, exactly who the right high-up men are can give a basher pause, so it's often best not to ask. But there's a sword to be found, and bloods needed to find it. Truth is, those who don't end up lost are sure to find out that no good deed goes unpunished! Fires of Dis is a Planescape adventure for four to six characters of 5th to 9th levels. From Sigil, the City of Doors, the heroes plunge head-first into a dangerous journey across the Outer Planes. Their quest for a stolen sword leads them to the hostile gate-town or Ribcage, the treacherous plane of Baator, and the disciplined burg of Fortitiude - a gate-town teetering between two planes, just waiting for something to tip the scales. Your player characters need wits as keen as their steel to brave the fires of Dis and survive!

Welcome to the Cage, friend. You'll want to watch your back in Sigil - it seems every cutter here's got a way to peel a clueless basher, and you're no exception. Besides, there's something happening down in the Hive that's got the factions in an uproar, and word is you're the cutter to look into it. Barmies and bubbers have been waking up in the Dead Book, but they haven't been staying there. They've been returning to Sigil with minds restored, telling tales of the Eternal Boundary. But the air's turning foul here in the Cage, and there'll be blood spilled soon if someone doesn't learn the dark of things, an quick! The Eternal Boundary is a Planescape adventure for a party of four to six characters of 1st to 5th levels. Players are introduced to the city of Sigil - the Cage, as some call it. Inside this crossroads to the planes, a sinister plot unfolds, leading the heroes into the most dangerous and desperate part of town - the ramshackle slum known as the Hive. Do your player characters have what it takes to confront the Eternal Boundary - and pass beyond?

Wherein the Heroes step through a Portal to find themselves in a Location Most Foul, from which they make their Entrance into the infinite Planes of Adventure. Chapter I of the "Well of Worlds" adventure anthology.

We get it. Factions are an integral part of D&D, but it's not always clear how to use them in your campaigns. Luckily, Factions of Sigil has you covered for each of the twelve main factions found across Sigil and the Outlands! This supplement goes over the various rules and lore around the primary factions found in Sigil and the Outlands, making it easy for any new or veteran DMs to integrate the factions more into the core stories being told, and making them feel more useful for the players that choose to join. In this adventure, the Mind's Eye of Sigil requests the characters travel to a secretive dome created by former member Skaldon, and follow his path to enlightenment.

When the players get teleported to the plane of the Beastlands, they meet with an intelligent petitioner in the form of a Dog named Reith. Eventually Reith will lead the players to a human; an eagle winged boy by the name of Addler. Addler already knows a way out of the Beastlands, but doesn’t want the players to know because the key is his body and if the petitioners knew he could leave, they wouldn’t like him anymore. Not being the best at planning, he’ll be coerced into giving the players a map to the petitioner that helped him find the portal (A snake named Siy). After passing through some small adventures in the beastlands, the players will meet with Siy and learn about Addlers portal. From here, the players will travel back to Addler and confront him.

We get it. Factions are an integral part of D&D, but it's not always clear how to use them in your campaigns. Luckily, Factions of Sigil has you covered for each of the twelve main factions found across Sigil and the Outlands! This supplement goes over the various rules and lore around the primary factions found in Sigil and the Outlands, making it easy for any new or veteran DMs to integrate the factions more into the core stories being told, and making them feel more useful for the players that choose to join. Complaints have been made to the Transcendent Order of a Slaad and its Bladeling allies that are disturbing the peace in Sigil, who in turn have tasked the characters to restore a sense of tranquility to the old Mastervale Manor.

We get it. Factions are an integral part of D&D, but it's not always clear how to use them in your campaigns. Luckily, Factions of Sigil has you covered for each of the twelve main factions found across Sigil and the Outlands! This supplement goes over the various rules and lore around the primary factions found in Sigil and the Outlands, making it easy for any new or veteran DMs to integrate the factions more into the core stories being told, and making them feel more useful for the players that choose to join. In this adventure, the characters are allied with the Bleak Cabal of Sigil, and have been sent to retrieve a lost artifact from the trap and puzzle heavy Forgotten Temple in the Outlands.

We get it. Factions are an integral part of D&D, but it's not always clear how to use them in your campaigns. Luckily, Factions of Sigil has you covered for each of the twelve main factions found across Sigil and the Outlands! This supplement goes over the various rules and lore around the primary factions found in Sigil and the Outlands, making it easy for any new or veteran DMs to integrate the factions more into the core stories being told, and making them feel more useful for the players that choose to join. Rumors of a means to access the Plane of Mirrors has spurred the Society of Sensations to request the characters enter the demi-plane and record the sensations and experiences within.

We get it. Factions are an integral part of D&D, but it's not always clear how to use them in your campaigns. Luckily, Factions of Sigil has you covered for each of the twelve main factions found across Sigil and the Outlands! This supplement goes over the various rules and lore around the primary factions found in Sigil and the Outlands, making it easy for any new or veteran DMs to integrate the factions more into the core stories being told, and making them feel more useful for the players that choose to join. This adventure sees the characters allied with the Fated of Sigil, and tasked to travel to the titular Tower of Pillars to conduct a heist from a Time Dragon.