Aim of the game The aim of the “Book of Neptune” slot is to get a winning combination of symbols once you have spun the reels. How to play  To start playing, you must initially determine the number of lines and the value of the coins to bet on each line. Specifically, you must select the token value by clicking on the "value" buttons [1]. The token amount can vary from a minimum of €0.01 up to a maximum of €1.00.  A line is considered successful only if the winning combination occurs on one of the selected lines. You can also click maxbet [2] to place your maximum bet, which is 10 lines at €1 per line.  To start the reels rotating you have to click on spin [3], even if you have chosen to click on maxbet [2]. If, when they stop, the reels show a winning combination (along a payline you bet on), you will win the amount set out in the pay table. If you win on multiple lines at once, your winnings will be accumulated. You can view the pay-out table, pay-out lines and information about bonus combinations at any time by clicking on "i" [4]. The winnings of each winning line are calculated by multiplying the share assigned to the winning combination (as in the pay-out table) by the amount played per line. The total win is the sum of the winnings from each winning line. For the calculation of the bonus winnings, see the paragraph "Bonus". The "autoplay" mode is also available if you click on the autoplay button [5].  This will allow you to activate the automatic rotation of the reels for a set number of times which you can decide. You can also decide to block this mode with the "stop" button. Winning Lines Below are the valid lines to achieve winning combinations: Bonus round You only enter the bonus round if the scatter symbol [6] appears 3 or more times anywhere on the reels, while also replacing any other symbol with a Wild feature. You will have 10 free spins and a special randomly chosen symbol that will appear anywhere on the reels as well as being expandable (Stacked). You will be able to get an additional 10 free spins with at least 3 Scatter symbols. RTP The return to player percentage (RTP%) for a single bet, is calculated on a statistical basis and equal to 95.03%.