Thinking about Pendragon #ttrpg, I am reminded that the Welsh book had this really cool adventure where the characters are made captains and handed this castle that turns out to be a ruin surrounded by hostile factions.
PCs had to try and secure alliances, hustle for supplies to rebuild the castle, and hold the line until the army turned up.
One of my favourite mini-campaign set-ups: Here is a theoretical pot of power and prestige, good luck turning theory into reality!
@SJohnRoss It's just a classic campaign structure. Also really useful for encouraging less-experienced players to view settings less as a series of missions and more as dynamic real places.
I'm currently working on one, where the PCs have to build a canal in hostile nomansland. Securing resources, fighting unkown horrors and secure it against pirates and kingdoms that don't want to pay the tax.
I'm creating a whole world for this. It's a lot of work, but also a lot of fun...