Book Of 99 Demo Slot
Before you play
The Book Of 99 demo here is free to play in your browser, with no account and no deposit. It's a Relax Gaming slot with 99.00% RTP. We've also logged 4,075 real-money bets on it over the last 30 days at 14 crypto casinos, so further down you can see how often it has actually paid, up to a 1,026x top hit.
Relax Gaming
Game facts
VerifiedHow Book Of 99 actually pays
Worked out from 4,075 real-money bets we logged over the last 30 days. It tells you how often the game has paid at each size, not what the next spin will do.
Win size breakdown
Every tracked bet, sorted by what it returned against the stake.
- Paid nothing57%
- Under 2x8.4%
- 2x to 10x22%
- 10x to 100x11%
- 100x to 1,000x1.5%
- 1,000x and up<0.1%
Book Of 99 lands a 100x hit more often than the typical Relax Gaming slot (1 in 144), and above the average across every slot we track (1 in 108).
Book Of 99 play activity this month
Counted from the casino bet feeds Betaro watches. It shows what already happened, not what the next spin will do.
+10Daily bets, last 30 days
Top hits this month
- 1386x$309 payoutOct 5
- 2327x$32.75 payout
Oct 3 - 3314x$6.3K payoutOct 4
- 4225x$67.35 payoutOct 1
- 5209x$20.95 payoutOct 5
Book Of 99 questions
Can I play Book Of 99 for free?
Yes. The demo at the top of this page runs in your browser with play money, so there's nothing to download, sign up for or deposit.
What is the RTP of Book Of 99?
Book Of 99 has an RTP of 99.00%. Some casinos run a different version, so check the game's info screen before you play for real money.
How often does Book Of 99 hit 100x?
In the last 30 days, 62 of the 4,075 bets we tracked paid 100x or more. That works out to about 1 in 66 bets.
Where is Book Of 99 played the most?
Of the 14 crypto casinos we track, Book Of 99 gets the most real-money play at Gamdom, Duelbits and Solcasino.
More Book of slots like Book Of 99
More Relax Gaming demos
The 99.00% RTP is the figure listed for Book Of 99, but casinos can run other versions, so check the game's info screen before you play for real. We only show specs the studio publishes or that two separate sources agree on. Everything else, from plays and big wins to which casinos it runs on, comes from 4.1K real-money bets Betaro logged in the past 30 days. Small samples swing a lot, so give more weight to slots with heavy play. The full method is on our methodology page.