Grain Garden

Sand falls and slides off a pile at a slant. Water and oil fall and spread sideways to find their level; oil is lighter, so water sinks under it. Fire flickers upward and dies down to smoke, lighting oil, plants and seeds, and water puts it out. A seed resting by water sprouts a plant that grows up toward the light and sometimes flowers. Stone stays where it is put, for ledges and bowls; Erase clears.

The box has depth. In 2D you see it face on and pour through its whole depth; the 3D button tips it round so the grains show in 3D, still running by the same rules (Q and E turn it).