You know how medieval villages near disused Roman aqueducts would just gradually dismantle the aqueduct for worked stone rather than quarry their own? I want to play a tabletop RPG with a classic shitty-little-village-with-ancient-ruins-under-it dungeon crawling setup that's basically that. You're not going down there to loot gold and magic swords: you're looking for pieces of sorcerous infrastructure you can pry loose and repurpose to meet the village's everyday needs. Give me the fantasy equivalent of those rural English taverns that don't have indoor plumbing but do have flatscreen TVs.
I know you said TTRPG, but I feel like this would work better as part of a city management video/board game. Like, you hire adventurers to clear out the dungeon (taking standard loot with them), then your own workers get a chance to go around the dungeon dismantling things. Or not: maybe some dungeons are better to keep intact as research sites or tourist traps, depending on the other resources your city has access to or how much damage the adventurers did to the dungeon clearing it out.
Regardless of the specifics, the resources the dungeon generates should develop your city enough to hire the tougher adventurers needed to clear the next dungeon and loot its resources. Lather and repeat until you hit a victory condition, like having enough resources to build a certain structure or adventurers powerful enough to kill a special NPC.



















