100 Planescape Adventure Hooks and Campaign Seeds - Adventure Hook Junction I

Oct 6, 2026

A collection of Planescape-focused adventure hooks and campaign seeds designed to fit play timelines ranging from short single-session prompts to very long multi-level campaigns. Each entry presents an actionable premise, including moral tensions, faction pressure, planar travel obstacles, and escalating complications through portals, invasions, cult growth, and dangerous bargains. The material guides PCs toward concrete objectives such as rescuing merchants, transporting forbidden tomes, stopping infiltrators, uncovering portal mechanics, and resolving existential or legal-chaotic conflicts.

LanguageEnglish

CategoryStory & Novel

FormatPDF

Pages32

Reading Time49 min

AccessFree to download

100 Adventure Hooks and Campaign Seeds

Hook Lengths and Campaign Seed Framework

Individual Adventure Premises

Adventure Hook Junction I 100 Adventure Hooks and Campaign Seeds Short Hooks can be easily squeezed into a single session. Medium Hooks will take place over one to two sessions. Long Hooks will take place over multiple sessions. Very Long Hooks are extended adventures that take place over multiple levels. And Campaign Seeds form the basis of an entire campaign. Author: Duckluck Short Clueless missionaries from the remote Prime World of Eberron have wandered into Sigil and are busy calling everyone they meet either an infidel or a heretic. Good PCs' have to get the missionaries to shut up and go home before they get bobbed or dead-booked. Evil PCs may well decide to bob or dead-book the missionaries themselves. Gehenna or Bust Author: Duckluck Short A planar merchant by the name of Fliv has been wounded by Khaasta on the Outlands and is stuck in the Gatetown of Ribcage unable to travel. Unfortunately, he has a shipment of eldritch tomes that is due in the Crawling City in an hour. The PCs are tasked with getting the books to their Yugoloth buyer before they are all hunted and killed. Hermit of Everchangeing Order Author: Squaff Short to Medium And old hermit that preaches from the Book of Everchangeing Order (from Tales from Infinite Staircase) is traveling the streets of Sigil, searching for a portal to a Prime where he will continue his mission to preach on the connections between Law and Chaos. In the meantime, extremists from both the Xaositects and the Fraternity of Order want to shut theman up for good. The PCs may either help the old hermit or they may try to stop him. The Tsochari Invasion Author: ripvanwormer Long to Campaign A group of tsochari (from Lords of Madness) discover a portal to Sigil and become determined to infiltrate and conquer it. The first few adventures involve their efforts to worm their way into Sigil's high society and make things difficult before the PCs manage to unmask them with the aid of possibly sinister and self-interested "allies" - or maybe just celestials with their own agenda that doesn't correspond with the PCs' - if they aren't able to figure things out on their own. The PCs gain some new allies from the incident, both helpful and unhelpful, and they feel like they've accomplished something major. Then things shift. As soon as the capable and experienced cutters of Sigil are aware of the tsochari, they come up with effective means of rooting them out, and soon the tsochari are consigned to the Hive Ward, where only the absence of effective law enforcement keeps them alive. Their only hosts are the poor and destitute. A group of psurlons, who have lived securely in the Clerk's Ward for generations, approach them and offer them sanctuary in the name of their common patron, Mak Thuum Ngatha. There are nilshai, too, and their high priest is agarmorm. They teach the tsochari that as long as they don't rock the boat too much and don’t threaten the authorities, then they can accomplish whatever they want in Sigil. They can use the city's portals to invade other worlds, for example. What they really want right now, though, is revenge on the PCs who caused their fall. And with their new allies, they just might get it. Alternate idea: The cult of Mak Thuum Ngatha is growing in Sigil as once Aoskar's more benign cult did, but the Lady of Pain isn't doing anything about it. A dabus has even converted to the faith, sacrificing Fell to his new master in a symbolic show of devotion, and still She does not act. The PCs must figure out what triggered Her intervention the last time, and hope it works again. Insectile Invaders | Author: Duckluck
Short to Long
A hive of formians, including their queen, has moved into Undersigil leaving some in the city worried that the bugs are going to steal their jobs, eat their children, or do something equally dastardly. The PCs are tasked by the Advisory Council, one of the Factions, or simply concerned lo

FAQs

How do the adventure hooks vary in length and campaign scope?

Hooks are categorized by expected runtime: short (single session), medium (one to two sessions), long (multiple sessions), very long (multiple levels), and campaign seeds that provide the basis for an entire campaign.

What recurring Planescape themes drive many of the scenarios?

Many hooks involve Sigil and the planar nature of travel, using portals and faction or societal pressures. Conflicts often mix Law vs. Chaos tensions, infiltration, and high-stakes survival objectives.

What kind of goals are the PCs typically assigned to accomplish?

PCs are often tasked with stopping hostile parties, delivering or protecting valuable items, uncovering portal or plot mechanics, and making choices that prevent catastrophic outcomes like being hunted, killed, or drawn into ongoing planar wars.

Oct 6, 2026

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