Hearth
The city your land can feed.
Every town answers one question before it raises a wall: what feeds it. Pick a climate, a river or a coast, the rocks underneath and a population, and Hearth works out the farmland, how far the carts go, the villages around, the wood burned, what the town makes and what it must buy. The city asked for is the one described. Too big for its land, it is told the price: grain by ship, harder lords, a worn-out countryside. The sheet reads like a town, from its walls to its trades, its bad years and the plague. Cities under the mountain and forges on lava have their place too. Sourced figures and Hearth's own estimates are kept apart.
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