Enter the game, the first thing you see is a beautifully designed slot machine, its interface is full of retro and mysterious style. Players simply click the "Rotate" button on the screen, and the slot machine's wheel begins to spin rapidly. The roller is distributed with a variety of patterns related to the mystery domino theme, including mysterious bones emitting dark light, ancient runes, shining gems and so on. When the wheel stops, the player wins a reward if a certain pattern achieves a certain combination on the payment line.