Zhann, assume you are looking north(+z direction.) in your illustration. You could try making your "solid wall" cubes long enough so at the top they just enter the ground and on the bottom they would be sunken into it. Booleanianing other shapes(something like rjs thingy comes to mind) with the wall using the same path only lower in the Y and perhaps offset in the X directions could add some neat effects. The hardest part is to keep your steps from poking out of the wall. Unless you know the mathmatical percentages for the X axis on your steps you might have to do each step manually or create a boolean negative based on the path to erase the step extrusions if you use a path. Love to see it when you've got it done. - TJ