The Sterling Silver logo is wild and will substitute for all symbols except for the Sterling Silver scatter coin. The wild is stacked on the center reel. 3 silver coin symbols anywhere on reels 2, 3 and 4 awards 10x total bet plus 15 free spins with all wins doubled. When the second wild symbol is active it will randomly display a multiplier value between 2x up to 10x. There is also a gamble feature in Sterling Silver 3D slot where players can double and quadruple their wins by choosing the correct card color or suit.