A topographic survey map you can knead with your finger. Drag across it and the contour lines swirl like marbled paper: coastlines curl into spirals, ridges smear into new valleys. Switch to Raise or Carve to push up a snow-capped peak or dig out a lake, and watch fresh rings of contours spread from your brush. Let go and, with Heal on, the land quietly flows back into its original shape. A spot height follows your brush, and a soft sandy sound tracks how hard you stir. Multi-touch works, and New land unfolds a fresh map.