Book of the Irish slot
Book of the Irish is an Irish-themed book slot from Inspired Gaming, launched in May 2019 with a leprechaun as its central character. The grid is 5 reels by 3 rows, with 10 lines. The Book symbol is both the wild and the scatter, and three or more start 10 free spins, which open with the book’s pages turning to choose one symbol that can expand during the round. It is in the Fortune Games lobby; stakes start at 10p.
Editorial note: this guide explains how Book of the Irish works. Rules, features and payout figures are set by the studio and can differ between operators and game versions, so check the game’s information panel before you play. Slots are games of chance, and nothing here predicts results. Availability at Fortune Games can change.
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Book of the Irish: key facts
| Studio | Inspired Gaming |
|---|---|
| Released | May 2019 |
| Reels and lines | 5 reels, 3 rows, 10 lines, as the game screen in our lobby shows |
| Top line payout | Five leprechauns on a line: 500x the stake (£500 at a £1 stake), as the paytable in our lobby shows |
| Volatility | Medium |
| Book symbol | Wild and scatter. Three, four or five pay 2x, 20x or 200x stake and start the free spins, as the Free Spins page in our lobby shows |
| Free spins | 10 for three or more Books, as the Free Spins page in our lobby shows |
| Expanding symbol | Chosen at random as the book’s pages turn before the free spins; it expands when enough land for a win |
| Gamble | Optional after a win: gamble it for a bigger cash prize or for free spins |
| Autoplay and turbo | Not available at sites licensed in Great Britain; UK rules require at least 2.5 seconds between the start of one game cycle and the next |
| Stakes | From 10p a spin in the studio’s range. UK rules cap online slot stakes at £5 a spin, or £2 if you are 18 to 24 |
| RTP | Shown in the game’s information panel |
All values (Bet Levels, Maximum Wins etc.) mentioned in relation to this slot game are subject to change at any time.
The paytable in our lobby at £1 a spin: five leprechauns on a line pay £500, five pots of gold £200 and five mushrooms or green boots £75, with the card symbols at £10 or £15 for five. Game and artwork © Inspired Gaming.
How Book of the Irish plays
The setting is Irish folklore. A leprechaun and pots of gold are among the symbols, and wins are paid across 10 lines on a 5x3 grid. The game follows the familiar book format, in which a single symbol carries most of the special work.
Book of the Irish in our lobby on 12 November 2026, at £1 a spin: the 5x3 grid with 10 lines, showing pots of gold, a green boot, a mushroom and card symbols. The small panel at the left of the game carries a timer and a £ figure, £0.00 here before any spin. UK rules require online slots to show time played and net position. Game and artwork © Inspired Gaming.
That symbol is the Book. On the reels it acts as a wild, substituting for the other symbols to complete line wins. It is also the scatter: three, four or five of them pay a multiple of the stake, shown in the key facts table, and start the free spins at the same time. Everything else in the base game is a straightforward line win.
Free spins with an expanding symbol
Three or more Books award 10 free spins. Before the first spin, the book opens and its pages turn until one symbol is picked, and that symbol becomes the expanding symbol for the whole round. During the free spins, whenever enough of it land to form a win, it expands to cover its reels, which lets it pay across more of the 10 lines than the symbols that actually landed. The other symbols pay as normal, so the round mixes ordinary line wins with these larger expanded ones.
The Free Spins page in our lobby: three, four or five books award 10 free spins plus 2x, 20x or 200x the stake, and a symbol chosen at random at the start expands to pay in any position on all lines when enough land for a win. Game and artwork © Inspired Gaming.
The gamble to free spins
After a win, Inspired offers an optional gamble feature with a twist: you can stake the win for a bigger cash prize, or play it for free spins instead. Turning the gamble down keeps the win as it is. Taking it puts that win at risk, so the gamble is a separate choice from the free spins that three Books award, and it can lead to the round without any Books landing.
Book of the Irish compared with Book of Halloween
Book of Halloween is Inspired’s book slot for the spooky season, and it is built the same way: 5 reels and 10 lines, 10 free spins for three or more trigger symbols, an expanding symbol chosen at the start of the round, and a gamble feature after wins. The real difference is the theme, with Halloween in place of the Irish folklore of Book of the Irish, so a player who knows one of the two can follow the other straight away.
| Game | Theme | Grid | Free spins |
|---|---|---|---|
| Book of the Irish | Irish folklore | 5x3, 10 lines | 10 for three or more Books, with one expanding symbol |
| Book of Halloween | Halloween | 5x3, 10 lines | 10 for three or more bonus symbols, with one expanding symbol |
All values (Bet Levels, Maximum Wins etc.) mentioned in relation to this slot game are subject to change at any time.
Book of the Irish at Fortune Games
Book of the Irish is listed with the slots in our lobby (18+), and Book of the Fallen sits next to it in the tiles above. The studio’s stakes start at 10p a spin, and the UK caps in the table set the top. The gamble is offered after a win and can be declined every time, so the base game and the free spins can be played without it. Fortune Games has an app on the App Store and Google Play.
Frequently asked questions
How is the expanding symbol chosen in Book of the Irish?
At random. The book flips through the symbols on the paytable and stops on one, and that symbol keeps the expanding role until the last free spin. It cannot be swapped or chosen by the player, so each round can play quite differently from the one before.
Do the Books pay on their own in Book of the Irish?
Yes. Three, four or five Books pay a multiple of your stake wherever they land, as listed in the key facts table, and the same spin also opens the free spins. The Book’s wild role is separate: it only counts towards line wins it helps to complete.
When did Book of the Irish come out?
In May 2019. Inspired announced its launch on 29 May 2019, and game databases date its release to the same week, so it has been on the market for more than seven years.
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Checked on 1 November 2026 against Inspired’s launch announcement and game pages for Book of the Irish and Book of Halloween, the SlotCatalog, SlotsMate, Slotstemple and VegasSlotsOnline game records, the Gambling Commission’s stake-limit guidance and remote technical standards, and the game in the Fortune Games lobby on 12 November 2026. Reviewed by Kay Cheadle on 12 November 2026. How we research and check our guides: our editorial policy.