Nameless mooks worshiping a demon god bent on destruction? How is this NOT a fun thing to have as your enemy - especially if they've got some NPCs with names backing them mup or an actual chance to summon the Pure Evil Whoever. Everyone loves cults for background material. They are always up to something and seem to attract members out of nowhere. And you rarely feel bad sticking them with a sword or blasting them to pieces with a fireball. Seriously - they are the nazis of the medieval fantasy world - fantasy Castle Wolfenstein.
But they can be more - so much more! They are an organization like all others - the individuals have motivations, the gods have motivations, allies, enemies, and all that good stuff. Cults in the Sorrow in Haven setting are always particularly dangerous because they could invite evil, actual evil, into the city. Even if they don't mean to. Corrupt one Templar and now the entire neighborhood might start getting weird. Summon some minions from the Gloom? Oh shit - Gloom Portals in every semi-abandoned alleyway.
Roll 4d10 and read up on the Cult Basics table. With a generated Origin, Ideal, Lure, and Rites you have a framework. Now roll 1d10 on the Worship & Veneration table - but if the roll is higher than any rolled on the Cult Basics table, reroll it until it isn't.
What's with the limited d10 for the last table?
This isn't going to be well thought out - just stream of consciousness so you can see how I putter around with these tables and results.
Let's see here ... Unclean spirit that offers immortality to the followers. Vampire jumps to mind, so let's go with that to start things off. The lure is Purpose ... improving Haven - bringing it back the a golden age through ... demagoguery. OK. Politics. Some sort of vampire that offers immortality to those that show their purpose in the guild politics of Haven. But what about Signs and Omens of the Sea. Got it!
- a guild asks them to investigate their political rival
- overhear the term while heisting some goods
- stumble across the murder of a splinter group - in progress
- suddenly a lot of goats are missing - get asked to help
- they are on the shit end of a seemingly mindless political guild maneuver
- one of them gets asked to join
Mix it up
Throw in some stuff from the gang generator! If the Focus d10 is 1-4, they are "petty", 5-6 is "minor", 7-8 is "major" and 9-10 would be "serious". So in the example above 7 would be "Major", so I'll roll 1d8 for the goal and get a 1 ... survival. Leadhership produces Ruthless & Charlatan.
What does this mean? Atosh knows that if discovered he will be destroyed. He has no actual plans for the rise of nobility, he is just trying to get a secure place to spend his time while he figures out what to do. There is no grand plan - just a handful of ideas. Atosh lives in constant fear of discovery but will do anything to ensure his safety.