Join Dorothy, Toto, Scarecrow, Tin Man and the Cowardly Lion as they journey to see the Wizard. Along the Yellow Brick Road, you'll relive the MOVIE. Black Diamond Casino is Zynga's most elegant social casino. Play the Black All Black Diamond Casino slots games are intended for adult audiences only. Now you can enjoy all the fun of free online slots in one convenient location - Zynga slots bring social casino gaming your way with exciting slot games including.