Summary Book of Ra Deluxe is an extremely popular online slot from Novomatic that provides players with the real land based casino gameplay experience. You can even borrow one from other casino games, for example, the Martingale strategy from roulette.Bonus Features The wild of the slot is the Book of Ra symbol and it also serves as the scatter. And heres my favorite slot tip: as soon as you have more money than you started with, stop. Book of Ra Slot for Mobile Players At last, you can play Book of Ra on your smartphone. In order to score a winning line, a line of 2-5 of the same symbols from left to right must be achieved. Book of Ra Deluxe, a classic slot that hasnt lost its popularity even after all these years.