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Play Book of the Irish Online

Last updated: Jun 9, 2026
Provider: Inspired Gaming RTP: 96.23% Volatility: Medium
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Book of the Irish

by Inspired Gaming

18+ | T&Cs Apply | Gamble Responsibly

Slot Review

Book of the Irish Overview

Book of the Irish is a medium volatility slot by Inspired Gaming with an RTP of 96.23% . This game features 20 paylines on a 5 x 3 grid . Play Book of the Irish for free on Slottomat, compare the core stats quickly, and browse trusted slot offers available in your market.

📊 Book of the Irish Stats & Key Facts

RTP
96.23%
Volatility
Medium
Paylines
20
Bet Range
0.10 – 100
Reels
5 x 3
Provider
Released
May 2019

Book of the Irish: A Verdant Quest for Ancient Treasures


Start a mystical journey to the Emerald Isle with Book of the Irish, a engaging online slot from Inspired Gaming that blends classic "Book of" mechanics with enchanting Celtic charm. This game invites players to explore lush green landscapes and uncover the secrets held within a magical tome, promising an adventure filled with expanding symbols and free spins. With a solid RTP of 96.23% and medium volatility, Book of the Irish offers a balanced experience suitable for a wide range of players, from those seeking steady action to hunters of rewarding bonus features. The betting range is accommodating, starting at a modest $0.02 and scaling up to $5 per spin, making it accessible for cautious explorers and more adventurous treasure seekers alike. In this comprehensive review, we'll explore every facet of this slot, from its visual and auditory presentation to the mechanics that drive its potential for wins.

Visuals, Theme, and Sound Design


From the moment the reels spin, Book of the Irish immerses you in a serene, mythical version of Ireland. The backdrop features rolling green hills under a soft, cloudy sky, evoking the island's legendary beauty. The symbols are beautifully rendered, with the lower-paying icons represented by intricately designed playing card suits (hearts, diamonds, clubs, spades) adorned with Celtic knots. The higher-value symbols include classic Irish good luck charms: a horseshoe, a green hat, a pipe, and a harp. The most valuable standard symbol is the red-haired Irish lass, who acts as the scatter. The centerpiece, of course, is the ancient Book itself, which serves as both the wild and the key to the game's riches.


The soundtrack is a gentle, melodic tune featuring traditional Irish instruments like the flute and fiddle, creating a peaceful and atmospheric gaming experience. The sound effects are crisp and satisfying, with the book emitting a magical chime when it lands and expands. While not as intensely animated as some modern 3D slots, the visual and audio package of Book of the Irish is cohesive and effectively sells its enchanting theme.

Gameplay and Core Mechanics


Book of the Irish is played on a standard 5x3 grid with 10 fixed paylines. Wins are awarded for landing three or more matching symbols on a payline, starting from the leftmost reel. The game's controls are intuitive, allowing players to easily adjust their bet level and coin value, set autoplay parameters, or spin the reels manually. The clear and simple interface ensures the focus remains on the engaging gameplay.


The key to unlocking the slot's most exciting features lies with the special symbols:



  • The Book (Wild & Scatter): This golden, glowing tome is the most important symbol in the game. It substitutes for all other symbols to help form winning combinations. More importantly, landing three or more Books anywhere on the reels triggers the highly anticipated Free Spins feature.

  • The Irish Lass (Scatter): This symbol can also trigger payouts when three or more appear, but its primary role is as a high-paying standard symbol.

The Free Spins Bonus Feature


The Free Spins round is where Book of the Irish truly comes to life and offers its most significant winning potential. Triggering this feature is straightforward: land three, four, or five Book symbols anywhere on the reels to receive 10 free spins. Before the round begins, one regular symbol (excluding the Book) is randomly chosen to become a special expanding symbol for the duration of the free spins.


During the bonus round, if enough of this chosen symbol lands on a reel to form a potential win (even just two symbols), it will expand to cover the entire reel. This mechanic can lead to multiple reels being filled with the same symbol, creating massive wins across multiple paylines. Also, if you land three or more Book symbols during the free spins, you will retrigger an additional 10 free spins, extending your adventure and increasing your chances of a big payout.

RTP, Volatility, and Betting Strategy


Book of the Irish presents a player-friendly profile with a Return to Player (RTP) rate of 96.23%, which is slightly above the industry average. This theoretical percentage indicates a good level of return over an extended period of play. The game's volatility is rated as medium, meaning it strikes a balance between the frequency of wins and the size of payouts. You can expect a mix of smaller, regular wins alongside occasional larger hits, particularly during the free spins feature.


The betting range is highly flexible, with a minimum bet of just $0.02 and a maximum of $5 per spin. This wide range makes the game an excellent choice for players who prefer to stretch their bankroll with smaller wagers, as well as those who want to increase the stakes for a chance at more substantial rewards. A strategic approach for many players is to start with a comfortable bet size to familiarize themselves with the game's flow, potentially increasing it slightly when aiming to trigger the lucrative free spins round.

How It Compares to Other Inspired Gaming Slots


Inspired Gaming has a diverse portfolio, and Book of the Irish holds its own with its classic, feature-driven gameplay. Compared to the chaotic chain-reaction fun of Bonus Island or the electrifying action of Lightning Viking, Book of the Irish offers a more traditional and serene experience. It shares the "select an expanding symbol" mechanic found in many "Book of" slots but wraps it in a uniquely Celtic package.


If you enjoy the thrill of expanding symbols, you might also appreciate the dark adventure in Demon's Gold or the festive linking reels in Santa LinKing. For players who prefer a different kind of mystical journey, the serene Temple of Light offers a visually distinct but equally engaging alternative. While not featuring feline friends like our curated cat slots or the interstellar themes found in our space-themed slots, Book of the Irish carves out its niche with its strong theme and reliable, rewarding mechanics.

Final Verdict and Who Will Enjoy This Slot


Book of the Irish by Inspired Gaming is a well-executed entry in the popular "Book of" genre. It may not reinvent the wheel, but it delivers a polished, engaging, and potentially rewarding experience wrapped in a charming Celtic theme. The high RTP and medium volatility make it a sensible choice for players who enjoy calculated risk and extended gameplay sessions.


This slot is ideally suited for:



  • Fans of classic "Book of" style mechanics who appreciate a fresh thematic skin.

  • Players who enjoy medium-volatility games with a clear path to a rewarding free spins feature.

  • Those who value atmospheric presentation and a relaxing, thematic soundscape.

  • Budget-conscious players and higher rollers alike, thanks to its wide betting range.


If you're looking for a slot that combines straightforward gameplay with the exciting potential of expanding symbols in a bonus round, Book of the Irish is certainly worth a spin. Its blend of accessibility, solid math, and enchanting theme provides a thoroughly enjoyable escape to a land of myth and potential fortune.

FAQ

Common Questions About Book of the Irish

Direct answers to the questions players usually ask before trying a slot.

The Book of the Irish slot has a theoretical RTP of 96.23% and is rated as a medium volatility game. This offers a balanced mix of risk and reward for players.
Yes, you can play Book of the Irish free in demo mode. This allows you to try the game without any financial commitment.
The bet range for this slot is from 0.02 to 5 per spin. The game uses a fixed number of paylines.
The Book of the Irish slot was developed by the provider Inspired Gaming. You can find more details about the game's features by checking the paytable.
Yes, the Book of the Irish slot is designed to be compatible with mobile devices. You can enjoy the Book of the Irish free play on smartphones and tablets.

You trigger the Free Spins feature by landing three or more Book symbols anywhere on the reels during the base game. This will award you 10 free spins and randomly select one regular symbol to become a special expanding symbol for the duration of the bonus round.


No, Book of the Irish is classified as a medium volatility slot. This means it offers a balanced mix of smaller, more frequent wins and the occasional larger payout, particularly during the free spins feature with expanding symbols.


While the exact maximum win multiplier is not always explicitly stated in the game's info panel, "Book of" style slots like this one typically have their highest win potential during the free spins round when reels become fully covered by the expanding special symbol. The max bet per spin is $5, which scales any potential wins accordingly.