The Sand Castle Wall is a creme yellow building block with a pattern resembling flat bricks that you can craft in your Crafting Menu (default key "q") after finding and learning the according rare Recipe Page.
It is also possible to learn recipes from player-created Adventures.
In order to permanently add the recipe to your crafting menu (and so it can be carried over to all other Creativerse gameworlds like all rare and store-bought Recipes), this recipe has to be learnt at first by right-clicking on it in your inventory/bag or dragging it with the left mouse-button over your player character model on the right side of the inventory.
To craft 8 blocks of Sand Castle Walls at a time you'll need (as of R44 in June 2017):
- 4 (blocks of) Sand taken from Dunes-biomes, oases or Shores, which does not require any Power Cell
- 1 Seashell, found on Shores or made from blocks of Sand with a Plow, or sometimes looted/pet-harvested from Pebbles
- 2x Melted Wax, made of Beeswax in a Forge or looted from Wood Treasure Chests or Stone Treasure Chests
- 4 Stone Rods, made of Stone, Limestone or Bedrock in a Processor
The block can be rotated by pressing and holding R and moving the mouse while holding the left mouse button.