The Golden Wall is a golden colored building-block with a shimmering smooth surface on 2 sides and half-darker-half-lighter diagonal halves on 4 sides. It can be crafted in your Crafting Menu (default key "Q") or at any Crafting Table in worlds created before R22 on September 16th 2015, after the recipe has been unlocked for you on November 11th if you were an Early Access player (as of R25 in November 2015, although it might become a shop-item or reward for future events later on). To craft 8 (blocks of) Golden Walls, you'll need (as of R25):