98 ambiences tagged "subterranean" in the MGS Audio Database, for tabletop RPG sessions.
Most of what plays here sits below something else. Under the rock the dwarven hammers never stop, and the dwarven library has never been told to keep it down. In the sewers, a thieves' guild counts its coins at an address it likes quiet. The elven ruins mostly stay on the surface, under snow, jungle or swamp, with buried halls below. Past the edge of the ground, wind pushes through a cavern on a flying island, and on the plane of earth the stone never stops moving.