Respecting the tradition of games with 9 lines and bonus feature, Novomatic hit the market with this Book of Ra slot game. Even after so many years of the. Ra is an auction and set-collection game with an Ancient Egyptian theme. Each turn players are able to purchase lots of tiles with their bidding tiles (suns). Book of Ra 6 gehört auch im Online Casino zu den beliebtesten Bislang hatte lediglich Stargames das Privileg, den Spielautomaten Book of Ra von.