Book of Cats Slot Overview
Book Of Cats is an Egyptian-themed slot from BGaming running on a 5x3 grid with 10 fixed paylines. Built around the cat goddess Bastet and the Golden Book mechanic, it follows the well-worn "book" formula we have seen dozens of times. RTP sits at 96.99%, volatility is high, and the max win caps at 10,000x. For serious players looking at another book slot, the question is whether the numbers justify the bankroll commitment.
I picked this one up because the 97x Feature Buy caught my eye and the grid expansion during Free Spins adds a sixth reel. On paper, reasonable. In practice, you need to weigh that 10,000x ceiling against the variance. More on that below.
Symbols and Paytable
Bastet is the premium symbol here, paying the highest on the paytable, followed by various Egyptian artefacts and the standard card royals filling the low end. Max win per line is 750 coins. Nothing unusual for a book-style slot; the spread between high and low symbols is typical. Dead spins will show up regularly despite the 35.97% hit frequency because most hits land on low-value royals.
Book of Cats itself is the Wild and Scatter combined. It substitutes for everything and triggers the Bonus Game at 3 or more. Standard book mechanic. Before the bonus starts, one symbol is randomly chosen as the expanding symbol, which can cover entire reels. On a 6-reel grid during free spins, a good expanding symbol pick makes all the difference.
Symbol Payouts
Bonus Features and Feature Buy
Three or more Book scatters trigger Free Spins, and the grid expands from 5x3 to 6x3 for the duration of the bonus. That extra reel is the key selling point. A random expanding symbol is selected before the round begins, and free spins can be retriggered. There is also a Gamble Round available after any base game win.
The Feature Buy costs 97x your bet. Natural trigger frequency averages 1 in 140 spins, so at 10 paylines you are looking at roughly 140x worth of base game spins to get there organically. The buy at 97x is technically below expected cost, which is rare. For bonus hunters, that makes the buy reasonable value on paper. I would still caution that the 10,000x ceiling limits your upside considerably; you need the expanding symbol to cooperate and the 6-reel grid to fill up.
My main gripe: the max bet is only 10. For high rollers, that is a dealbreaker. You cannot scale the buy into meaningful territory. A 97x buy on a max bet of 10 is 970 per bonus round, and your ceiling is 100,000. Compare that to slots where you can bet 50 or 100 on a buy; the numbers simply do not compete.
Bonus Buy Options
Land 3+ Book scatter symbols to trigger free spins. The grid expands from 5x3 to 6x3 during the bonus round, increasing win potential up to 10,000x.
Feature Cost: 97x bet (Feature Buy)
Risk your winnings in a gamble feature after any winning spin to potentially double your payout.
Purchase direct access to the Bonus Game for 97x your current bet, bypassing base game entirely.
Feature Cost: 97x
RTP, Volatility, and Max Win
96.99% RTP is above average and one of the stronger points of this slot. High volatility means long dry stretches between meaningful payouts. Hit frequency of 35.97% keeps the base game ticking over, but most of those hits return small amounts through the low-pay royals. Real money comes from the bonus round only.
10,000x is the ceiling. For a high-volatility book slot, I find that modest. Many competitors in this format offer 5,000x to 50,000x, and the ones worth buying into tend to sit at 20,000x or above. With a proper bankroll, you can grind the bonus buy and expect decent frequency, but the payout ceiling is too low for this variance if you are chasing life-changing hits.
