The size of the line bet in the Book of Ra 6 is regulated as follows: Its use allows you to collect the winning combinations more often and expect larger amounts of prize payouts. It introduces an additional sixth reel to the game. If, after selecting 10 lines, a gambler presses the “+” button again, an extra bet is activated. To manage their quantity, use the Lines menu. The Book of Ra 6 slot uses 10 adjustable paylines.