Book of Cats Overview
The Book of Cats slot from BGaming pairs an Egyptian theme with a 6x3 grid and 10 fixed paylines. RTP is 96.99%, volatility is Very High and the max win reaches 8,202x, with bets from $0.10 to $10 per spin. Its bonus round runs 10 free spins with one expanding symbol and starts on three or more Golden Books.
| Parameter | Value |
|---|---|
| Developer | BGaming |
| Release Date | July 8, 2020 |
| Grid | 6x3 |
| Paylines | 10 fixed |
| RTP | 96.99% (Buy Bonus: 96.83%) |
| Volatility | Very High |
| Max Win | 8,202x |
| Bet Range | $0.10 – $10 |
| Hit Rate | 1 in 2.78 spins |
| Free Spins Frequency | 1 in 140 spins |
| Key Features | Winline Expanding Feature on reel 6, Golden Book Wild/Scatter, 10 free spins with an expanding symbol (unlimited retriggers), Buy Bonus at 97x total bet, card gamble (x2 colour / x4 suit) |
Visual Style
Set in ancient Egypt, the Book of Cats game is dedicated to the cat goddess Bastet and the festival held in her honour. Its premium symbols are a cat-eared queen, a cat in a green frame, a Pharaoh cat mask and a blue cat-headed ankh sceptre.
The Golden Book serves as Wild and Scatter, and the card ranks A, K, Q, J and 10 fill the low tier. In the base game, reel 6 is locked apart from its middle cell, which stays in view on every spin.
Winline Expanding Feature
In the base game, reel 6 stays locked except for one middle cell. That single cell runs both this feature and the free spins symbol pick. The feature needs a winning combination on the reels and the same symbol showing in the open cell of reel 6.
The symbol expands to cover all 3 positions and extends the winning combination, which the intro screen labels "+1 Extra reel". It works with any paying symbol, from the cat-eared queen down to the 10.
Lines 1, 6 and 7 pass through the open middle cell. Every symbol carries a separate 6-of-a-kind pay, and the cat-eared queen pays 750x total bet for six against 250x for five.
Golden Book Wild and Scatter
The Golden Book is both the Wild and the Scatter. As Wild, it substitutes for all symbols in a winning line. Three or more Golden Books in the base game trigger 10 free spins with an expanding symbol. Inside that round the Golden Book can never become the expanding symbol, and it does not substitute for it.
As Scatter, it pays anywhere on the screen with no payline needed. The win is multiplied by the total bet and paid on top of any line wins from the same spin.
| Golden Books | Pays (x total bet) | At $1 total bet |
|---|---|---|
| 3 | 2x | $2 |
| 4 | 20x | $20 |
| 5 | 200x | $200 |
| 6 | 400x | $400 |
Book of Cats Free Spins
The 10 free spins play at the same bet and lines as the triggering spin. Reel 6 opens fully for the bonus, with all 3 positions in play. Extra free spins can be won inside the round, and retriggers have no limit.
Expanding Symbol Picked on Reel 6
Whatever sits in reel 6's single open cell when the third Golden Book lands becomes your expanding symbol for all 10 free spins. You can see the candidate during the base game, before the trigger completes.
The pick can land on the cat-eared queen, worth 750x total bet for six on a line, or on the 10, worth 25x.
Expanding Symbol Payouts
Each free spin pays its regular wins first. The expanding symbol then grows to fill all 3 positions on every reel where it landed. It expands only when enough copies land for a win: 2 for premium symbols and 3 for A, K, Q, J and 10.
Once expanded, the symbol pays by its own paytable on all 10 lines, in any position. The reels do not need to be adjacent, and the left-to-right rule from reel 1 does not apply to it. Three expanded Pharaoh cat masks on reels 1, 3 and 6 pay as 3 of a kind on each of the 10 lines.
Card Gamble: Colour x2, Suit x4
After a base-game win, a Gamble button appears next to Spin. The whole current win becomes the stake, and you guess a face-down card. Naming the colour doubles the win (x2), and naming the suit multiplies it by x4.
A wrong guess wipes the win and returns you to the main game. After a correct guess you can collect with the money-bag button or risk the total again. If the next possible gamble win would exceed 8,202x, the round closes and the amount already won goes to your balance.
| Guess | Options | Multiplier |
|---|---|---|
| Colour | Red, Black | x2 |
| Suit | Clubs, Spades, Hearts, Diamonds | x4 |
Book of Cats Paytable
Line wins pay left to right from reel 1 on consecutive reels of an active line. Only the highest win on each line is paid, and wins on different lines are added together. Premium symbols pay from 2 in a row, card ranks from 3.
The game prints line pays as multiples of the line bet, which equals the total bet divided by 10. Line pays are converted to total bet, with cash amounts at $1 per spin ($0.10 per line). Golden Book Scatter pays are set in total bet by the game itself.
| Symbol | 6 of a kind | 5 of a kind | 4 of a kind | 3 of a kind | 2 of a kind |
|---|---|---|---|---|---|
 | 750x ($750.00) | 250x ($250.00) | 50x ($50.00) | 5x ($5.00) | 0.5x ($0.50) |
 | 250x ($250.00) | 100x ($100.00) | 20x ($20.00) | 2x ($2.00) | 0.2x ($0.20) |
 | 100x ($100.00) | 37.5x ($37.50) | 5x ($5.00) | 1.5x ($1.50) | 0.2x ($0.20) |
 | 100x ($100.00) | 37.5x ($37.50) | 5x ($5.00) | 1.5x ($1.50) | 0.2x ($0.20) |
 | 37.5x ($37.50) | 7.5x ($7.50) | 2x ($2.00) | 0.3x ($0.30) | N/A |
 | 37.5x ($37.50) | 7.5x ($7.50) | 2x ($2.00) | 0.3x ($0.30) | N/A |
 | 25x ($25.00) | 5x ($5.00) | 1.2x ($1.20) | 0.3x ($0.30) | N/A |
 | 25x ($25.00) | 5x ($5.00) | 1.2x ($1.20) | 0.3x ($0.30) | N/A |
 | 25x ($25.00) | 5x ($5.00) | 1.2x ($1.20) | 0.3x ($0.30) | N/A |
 | 400x ($400.00) | 200x ($200.00) | 20x ($20.00) | 2x ($2.00) | N/A |
Bonus Buy Feature
The free spins round can be bought for 97x total bet. The next spin after the purchase triggers the bonus.
The buy button stays inactive while free spins run, and RTP through the purchase is 96.83%.
| Bet per spin | Buy Bonus price (97x) |
|---|---|
| $0.10 | $9.70 |
| $0.20 | $19.40 |
| $0.40 | $38.80 |
| $1 | $97 |
| $2 | $194 |
| $5 | $485 |
| $10 | $970 |
Book of Cats RTP & Volatility
Book of Cats returns 96.99% in regular play and 96.83% through the Buy Bonus. Both figures are theoretical returns measured over a very large number of spins.
- Volatility is Very High. The hit rate is 1 in 2.78 spins, and free spins arrive on average once every 140 spins.
- The max win is 8,202x, and the same figure caps the card gamble.
- Long runs without the bonus are normal at this volatility, so pick a stake that leaves room for them.
How to Play the Slot Online
Choose a casino
Pick an online casino that carries BGaming titles and lets you hold your balance in USD.
Sign up or log in
Register a new account, or log in to the one you already have.
Make a deposit
Open the cashier, choose a payment method and add funds in USD.
Find the game
Search the lobby by title and launch Book of Cats online in real-money mode.
Set your bet
The 10 lines are fixed, so only the total bet changes: $0.10, $0.20, $0.40, $1, $2, $5 or $10. The "i" button opens the paytable.
Spin
Press Spin, or set Autospins to stop on any win, a bonus win, a single win above a set amount or a balance change. After a base-game win, collect it or press Gamble.
Playing Book of Cats on a Budget
Bets move in 7 steps from $0.10 to $10 with the lines fixed, so the step you choose is the only budget lever. Free spins arrive on average once every 140 spins. To play Book of Cats on a small deposit, pick a step at which the deposit covers at least one average run to the bonus.
| Bet per spin | Staked over 140 spins |
|---|---|
| $0.10 | $14 |
| $0.20 | $28 |
| $0.40 | $56 |
| $1 | $140 |
| $2 | $280 |
Part of the stake comes back through wins along the way (hit rate 1 in 2.78). The 140-spin interval is an average, and a real run can be shorter or longer.
FAQ
It runs the Winline Expanding Feature. A winning combination must land while the open middle cell shows the same symbol. That symbol then expands to all 3 positions of reel 6 and extends the win.
The symbol in reel 6's open cell on the triggering spin becomes the expanding symbol for the whole round. The Golden Book can never be picked.
Yes. Extra free spins can be won during the 10-spin round, and the rules set no limit on retriggers.
No. After expanding, it pays on all 10 lines in any position, even on non-adjacent reels. It expands only when enough copies land for a win: 2 for premium symbols and 3 for card ranks.
The price is 97x the total bet, which comes to $9.70 at the $0.10 minimum and $970 at $10. RTP through the Buy Bonus is 96.83%.
After a base-game win you can stake it on a face-down card: the colour pays x2 and the suit pays x4. The round closes once the next possible win would exceed 8,202x, and the amount already won goes to your balance.
RTP is 96.99% in regular play and 96.83% through the Buy Bonus. Volatility is Very High, and the max win is 8,202x the bet.