Book of Santa
Endorphina | 96.05% RTP | Certified Fair Play
Endorphina | 96.05% RTP | Certified Fair Play
Base Game RTP (Risk Game Excluded)
Book of Santa delivers a solid 96.05% return to player in the base game. With the Bonus Pop feature activated, RTP ranges from 94.73% to 95.98% depending on your symbol selection. The optional Risk Game operates at approximately 84% RTP when played consistently.
Land 3 or more Book Scatters anywhere to trigger 10 free spins. A randomly selected symbol expands vertically across entire reels when enough appear to form a winning combination. Expanded symbols pay on adjacent and non-adjacent positions across all enabled paylines.
The golden Book symbol serves double duty: it substitutes for all regular symbols as a Wild, and also acts as the Scatter to trigger free games. 5 Books pay €20.00 at minimum bet, while 3 Books unlock the expanding symbol feature.
After any base game win, gamble your winnings by picking a card to beat the dealer's hand. Successfully beat the dealer to double your win, or lose everything. Available for up to 10 consecutive rounds with variable RTP per dealer card (42% for Ace, 162% for 2). Average RTP: 84%.
Skip the wait and purchase direct access to free games. Choose your expanding symbol before triggering. Cost varies based on your selection and total bet—at €0.10 bet, expect €6.90 for instant feature access. Guaranteed 3 Scatters with your chosen expanding symbol.
All payouts displayed are for 10 enabled paylines at €0.10 total bet. Winning combinations must start from the leftmost reel on adjacent positions (except Scatters, which pay anywhere).
Step 1: Set Your Bet – Choose your bet amount using the controls at the bottom of the screen. You can wager between €0.10 and €45.00 per spin across all 10 paylines. Your total bet determines all payout values shown in the paytable.
Step 2: Spin the Reels – Click the large START button to spin the 5 reels. Winning combinations form when matching symbols land on adjacent reels starting from the leftmost position on any of the 10 enabled paylines. The Book Scatter symbol is the exception, paying anywhere on the reels.
Step 3: Free Games Trigger – When 3 or more Book symbols appear anywhere, you're awarded 10 free spins. Before the free games begin, one symbol is randomly selected to become the special expanding symbol. During free spins, when enough of the chosen symbol lands to form a winning combination, it expands to fill entire reels and pays on non-adjacent positions.
Step 4: Optional Features – After any base game win, you can activate the Risk Game to double your winnings by beating the dealer's card. Alternatively, use the Bonus Pop button to purchase instant access to free games with your choice of expanding symbol. Remember: you cannot gamble Bonus Pop winnings in the Risk Game.
Book of Santa is played with the same bet and line configuration throughout base game and free spins. All unfinished games and prizes are saved for 7 days. The English version of game rules always prevails in case of translation discrepancies.
Book of Santa has a base game RTP of 96.05%, which excludes the optional Risk Game feature. When you activate the Bonus Pop buy feature, the RTP adjusts to between 94.73% and 95.98% depending on which symbol you select as the expanding symbol. The Risk Game, if played consistently regardless of the dealer's card, operates at approximately 84% RTP.
Free spins trigger when you land 3 or more Book Scatter symbols anywhere on the reels during a base game spin. You'll receive 10 free games played with the same bet and paylines as the triggering spin. A random symbol is selected at the start to expand vertically when it appears in sufficient quantity. Free spins can retrigger during the feature if you land 3+ Books again.
At the beginning of free games, one symbol is randomly chosen as the special expanding symbol. When enough of this symbol appears on the reels to form a winning combination (regardless of position), it expands to fill the entire reel vertically. Expanded symbols pay for combinations in both adjacent AND non-adjacent positions across all enabled paylines, significantly increasing win potential.
Bonus Pop lets you purchase instant access to the free games feature instead of waiting to trigger it naturally. Click the Bonus Pop button (showing the current price, typically €6.90 at €0.10 bet) to select which symbol you want as the expanding symbol. The feature then triggers a guaranteed spin with 3 Scatters, launching free games with your chosen symbol. Note that you cannot use the Risk Game to gamble winnings from Bonus Pop sessions.
Yes, Book of Santa is fully optimised for mobile play on smartphones and tablets. Endorphina designs all their slots using HTML5 technology, ensuring smooth performance on iOS, Android, and other mobile platforms without requiring downloads. The game interface scales perfectly to smaller screens while maintaining all features, including autoplay, turbo mode, and the Bonus Pop button.
The highest paying regular symbol is Santa Claus, which pays €50.00 for 5 of a kind at the minimum €0.10 bet (500x multiplier). This scales proportionally with your bet size. The real win potential comes from the free spins feature, where the expanding symbol mechanic can fill multiple reels with matching symbols paying on non-adjacent positions. Combined with the optional Risk Game (up to 10 consecutive doubles), significant wins are possible.
Book of Santa is developed by Endorphina, a Prague-based game studio known for high-quality video slots with distinctive themes and certified fair mathematics. Since their founding, Endorphina has built a reputation for creative game design, reliable RTP rates, and multi-jurisdictional compliance.
The studio holds licences and certifications from multiple gaming authorities and testing laboratories, ensuring that Book of Santa meets strict standards for fairness and randomness. All Endorphina games undergo regular audits, and the stated RTP percentages are independently verified.
Beyond Book of Santa, Endorphina's portfolio includes over 100 diverse titles ranging from classic fruit slots to elaborate multi-feature video slots. Their games are available at licensed online casinos across Europe, Asia, and Latin America, supporting multiple currencies and languages including full Australian English localisation.
Responsible Gaming Reminder: Book of Santa is intended for entertainment purposes. Set deposit limits, take regular breaks, and never wager more than you can afford to lose. If you feel your gambling is becoming problematic, seek help from organisations like Gambling Help Online (1800 858 858) or Lifeline (13 11 14).