Book of Santa Review
Book of Santa gives the familiar book-slot format a Christmas setting. The central book acts as both wild and scatter, and its free games choose one symbol that can expand across the reels. Endorphina keeps the five-reel, ten-line structure easy to recognise, leaving the expanding-symbol round as the main reason to explore the game.
A festive version of the book format
The board has five reels and three rows, with ten paylines. Santa, bells, stars and the decorated book establish the theme without adding a separate set of seasonal rules. The base game is built around line wins and the book's two roles.
As a wild, the book can replace other paying symbols. As a scatter, it is counted across the screen to trigger the feature. Recognising that distinction is more useful than memorising every smaller symbol value: the same book can help a line and contribute to the free-games trigger.
Book of Santa Features
Free games and the expanding symbol
Three or more books trigger ten free games. Before the round begins, a paying symbol is selected at random for the expanding role. That selection stays important throughout the feature because it determines which symbol can fill entire reels.
The special symbol expands when enough examples are present to form a qualifying win. It does not simply expand on every appearance. After the regular symbol award is evaluated, the expanded symbols can pay from non-adjacent reel positions on enabled paylines. Further free games can also be triggered during the round.
This conditional expansion is what gives a book-style bonus its particular structure. The selected symbol, the number of reels it reaches and any retrigger all matter to the final result.
RTP and Bonus Pop availability
Endorphina's current game page lists an RTP of 96.05%. Older references can show a rounded or different value, so the installed game's paytable is the appropriate place to confirm the configuration being played.
The provider also lists Bonus Pop, with availability depending on jurisdiction. It would therefore be misleading to describe every Book of Santa version as having exactly the same feature menu. The ten free games and expanding symbol remain the core of the review; any optional feature should be checked in the version opened.
What distinguishes it from other book slots?
Its strongest point of difference is presentation. Players familiar with the format will recognise the basic progression, while the Christmas artwork provides an alternative to the more common tombs and explorers.
The mechanics offer less novelty than the setting. If the expanding-symbol structure is already familiar, the seasonal theme is likely to be the main deciding factor rather than a radically different way to play.
Book of Santa Pros and Cons
Strengths
- Familiar five-reel, ten-line structure
- Free games with a selected expanding symbol
- Free games can be retriggered
Limitations
- Limited novelty for experienced book-slot players
- Bonus Pop availability depends on the installed version and jurisdiction
Our Verdict
Book of Santa is a straightforward interpretation of a recognisable slot format. The book's dual role is easy to understand and the expanding symbol gives the free games a clear focal point. Its appeal depends largely on whether the Christmas setting and familiar rules are enough; it offers less mechanical variety than a multi-feature slot such as Le Pharaoh.
Book of Santa FAQs
How are free games triggered in Book of Santa?
Three or more book scatters trigger ten free games with a randomly selected expanding symbol.
Does the special symbol always expand?
No. Enough special symbols must be present for a qualifying win before the expansion takes place.
What RTP does the provider currently list?
Endorphina currently lists 96.05%. Confirm the applicable configuration in the installed game.
Does Book of Santa have Bonus Pop?
The provider lists Bonus Pop, but says availability depends on jurisdiction. Check the feature menu in the version opened.
Sources and game-version notes
Information checked 30 October 2026.
RTP was updated to the current provider figure. Bonus Pop availability is version- and jurisdiction-dependent; an overall win cap was not independently confirmed.
