Guess right, and be awarded a hefty payout this round. Four cards are revealed, you now get the chance to bet on what color the next revealed might be. A deck of cards will appear, shuffled and five cards picked at random. Each round you have the choice to wager your winnings in a true 50/50 bet. Novomatic slots are known for many things, and the gamble feature is one of them. And to top it all off: you can always win more free spins during already running free spins! At the beginning of each bonus mode, a random symbol will be picked and upgraded, increasing win multipliers and win chances in general! These special symbols can freeze fields on a reel, and even take over entire reels, consistently increasing win rates over time. During these rounds the win multiplier for all combinations scored is considerably higher, as well as the number of occurring, high-tier win symbols is increased. The eponymous book itself is the scatter of this slot game, but it also brings you free spins as soon as you manage to find three of them on your reels along a currently active win line.
It’s the bonus rounds and modes that turned Book of Ra™ into such a phenomenon, to begin with.
