Guidebook to the City of Dolmvay: Massive city, hundreds of buildings, neighbourhoods, and institutions. Many buildings have named NPCs, plot hooks, rumours, and adventure seeds. Classic swords & sorcery tone—gritty, grounded, yet fantastic. Good reviews, and the price is right: PWYW for the PDF. As an added bonus, it was published under a permissive license enabling others to add onto the city with their own supplements. The system is Labyrinth Lord, and conversion to DCC is easy enough to do it on the fly.
The Blight (Swords and Wizardry): Even more massive, almost too massive depending on your needs. The supplement clocks in at almost 900 pages, describing a city of almost 4 million people. Outrageously detailed, each district described building-by-building. Every NPC is twisted, with dozens of plot hooks per district. Dark swords & sorcery — think Clark Ashton Smith meets Gormenghast. Urban horror meets pulp swordplay. Available for Swords and Wizardry (again, you can convert to DCC on the fly), and 5e (and PF1, if that matters).
The Blight (Swords and Wizardry): Even more massive, almost too massive depending on your needs. The supplement clocks in at almost 900 pages, describing a city of almost 4 million people. Outrageously detailed, each district described building-by-building. Every NPC is twisted, with dozens of plot hooks per district. Dark swords & sorcery — think Clark Ashton Smith meets Gormenghast. Urban horror meets pulp swordplay. Available for Swords and Wizardry (again, you can convert to DCC on the fly), and 5e (and PF1, if that matters).