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Shelters now wear their town's culture color on the map (North cool-blue, South green, West gold, East red), dimmed by wear; granaries stay green, ruins dark. And bonds can now cross town lines: usually you pair within your own people (that's who you're near), but a wanderer who warms to someone from another town shacks up across cultures - the first quiet thread of contact between two peoples. When two towns share a roof, the house is drawn split diagonally, half each culture, visible across the map. Mechanics: buildings track their top-two resident home-towns (recomputed with occupancy, throttled to every 30 ticks since it's map-only); the bonding rule dropped its same-town requirement. A 240-day run produced 126 bonds, 40 of them cross-town (East+North, West+South, all combos), with populations still balanced - inter-cultural contact without destabilizing the towns. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>