ENDORPHINA
Licensed Operators Only

Book of Santa

Discover 10 Free Spins with Expanding Symbols in this Festive Christmas Slot

96.05% RTP Dual Wild/Scatter £0.10 - £45
Play for Real Money
Available at UKGC licensed casinos
Book of Santa slot game featuring Victorian-style Santa Claus portrait, golden magical book with ornate red seal, and festive pine branches decoration
96.05%
RTP
10
Paylines
10
Free Spins
5×3
Reel Layout

Key Features

What Makes Book of Santa Special

📖

Dual Wild & Scatter Book

The golden Book symbol serves both as Wild, substituting for all regular symbols, and as Scatter, triggering free spins when 3 or more appear anywhere on the reels.

🎁

Expanding Symbols

During the 10 free games, one randomly selected symbol expands vertically to fill entire reels, paying on all enabled paylines even in non-adjacent positions.

🎰

Bonus Pop Buy Feature

Skip the wait and purchase instant access to free spins. Choose which symbol becomes the expanding symbol for complete control over your bonus round strategy.

🃏

Risk Game

Gamble any base game win up to 10 times by beating the dealer's card. Strategic play can achieve RTPs above 100% when the dealer shows low cards like 2, 3, or 4.

🎅

Premium Symbols

Santa Claus is the top symbol paying 500x your line bet for five of a kind, followed by the golden bell at 200x and festive star and sleigh at 75x each.

Retriggerable Free Spins

Land 3+ Book symbols during the free games feature to win an additional 10 free spins, keeping the same expanding symbol for extended winning potential.

How to Play Book of Santa Slot

Book of Santa from Endorphina brings a festive twist to the classic book-style slot format. This Christmas-themed game combines traditional slot mechanics with unique dual-purpose symbols and powerful expanding features that can deliver significant wins.

The Dual-Purpose Book Symbol

The golden Book with its distinctive red ornament seal is the centrepiece of this slot, serving simultaneously as both Wild and Scatter. As a Wild, it substitutes for all standard symbols to complete winning combinations across the 10 fixed paylines. As a Scatter, landing three or more anywhere on the reels triggers the Free Games feature with expanding symbols.

This dual functionality makes the Book symbol exceptionally valuable—it pays scatter wins of 20x, 200x, or 2000x your total bet for three, four, or five symbols respectively, whilst also helping create additional line wins by substitution.

Free Games with Expanding Symbols

When you trigger the feature with 3+ Book symbols, you receive 10 free spins. Before the spins begin, the game randomly selects one symbol to become the special expanding symbol. During free spins, whenever enough of this symbol land to complete a win, they expand vertically to fill their entire reel.

Crucially, expanded symbols pay in all positions on enabled paylines—not just adjacent positions. This means if your expanding symbol is Santa and you land Santas on reels 1, 3, and 5, they'll expand and pay across all three reels despite the gap on reel 2. This mechanic dramatically increases win potential compared to standard payline rules.

Symbol Values and Paytable

At a £1 bet (10p per line), Santa Claus pays £50 for five of a kind, making him the premium symbol. The golden bell awards £20, whilst the star and sleigh both pay £7.50. Card symbols range from £1 to £1.50 for five matching symbols.

Wins form on the 10 fixed paylines running left to right across the 5×3 grid. You need matching symbols on adjacent reels starting from the leftmost reel, except for Scatters which pay in any position.

Bonus Pop Buy Feature

For players who prefer immediate action, the Bonus Pop feature allows you to purchase direct entry to the free games. The cost varies based on your total bet—at minimum stake it's £6.90, representing 69x your bet. You can select which symbol becomes the expanding symbol, adding a strategic element.

The RTP when using Bonus Pop ranges from 94.73% to 95.98% depending on which symbol you choose, slightly lower than the base game's 96.05%. Wins from purchased bonuses cannot be gambled in the Risk Game.

Risk Game Strategy

After any base game win, you can enter the Risk Game to potentially double your winnings up to 10 consecutive times. You select one of four face-down cards to beat the dealer's revealed card. The Joker beats everything, and draws let you try again without losing.

The average RTP of 84% assumes random play, but strategic players can improve their odds significantly. When the dealer shows a 2, the RTP jumps to 162%; at 3 it's 121%; at 4 it's 113%. Conversely, when the dealer shows an Ace, the RTP plummets to just 42%. Smart players take wins when facing high dealer cards and gamble when seeing low ones.

Betting Range and Volatility

Book of Santa accommodates players from £0.10 to £45 per spin across its 10 fixed paylines. This wide range suits both casual players and high rollers. The game sits in the medium to medium-high volatility range—free spins don't trigger constantly, but the expanding symbol mechanic can produce substantial wins when they do, particularly if Santa or the bell becomes the expanding symbol.

The maximum win potential comes from landing five expanded Santa symbols across all reels during free spins, creating multiple overlapping paylines of the top-paying symbol. Combined with the retrigger possibility, patience can be rewarded with significant Christmas payouts.

Play Responsibly

Book of Santa is intended for entertainment purposes at licensed UK casinos regulated by the UK Gambling Commission. Please gamble responsibly and within your means. Set deposit limits and take regular breaks.

If you need support, contact BeGambleAware.org or call the National Gambling Helpline on 0808 8020 133.