Collapse Town: a wave-function-collapse solver builds a night street of row houses, tile by tile, out of a haze of possibilities. Click or tap a cell to pin a tile there and the town re-solves around the pins. Arrow keys move a cell cursor and Enter opens the tile picker. Keys: N new town, space pause, 1 2 3 solve speed, C clear pins, S save a PNG, L copy a share link, Escape closes the picker.