Build one lava domain and then defend it: a Classic studio for shaping and a Mainline studio with layers, budgets, puzzles and three campaigns, each keeping its own draft. Four looks in Settings; World Zero, the original ember palette, is the default. Brushes, mirrors, stamps, save slots and share codes on a small purpose-built WebGL2 renderer.
Drag to paint, right-drag to orbit, pinch to zoom on a phone. Sound stays off until you turn it on.
GameBefore you run it: needs WebGL, can save files to your device.