Of all the different no-download slots that we have played, this one in particular is one of our favorites because the free spins feature is extremely unique to say the least. The symbol 'Book' serves as a joker symbol andthe bonus symbol. If you have a small bankroll, it is best you only bet small amounts at a time as you wait for a win. To play Book of Ra online games you do not need to download any special software, all you need is a common web browser such as Mozilla Firefox or Google Chrome. The aim is to connect a minimum of 3 to a maximum of 5 equal symbols from left to right. An Autoplay button activates the automatic mode. If 3, 4, or 5 books are obtained on any reel the gambler receives a payoff that equals to a total bet multiplied by 2x, 20x or 200x. How to win in Book of Ra Deluxe. Book of Ra Mobile Slot - Available on all mobile devices: iPhone / iPad / Android phone tablet. Games Played:.3K, the amazing Book of Ra slot has 5 reels, 3 rows and 9 pay lines. It simultaneously carries out several important functions. Launching spins happens after pressing Start button.