Reviewed by Stephen Cummings | Expected reading time 2 mins
- High RTP (99.00%)
- 5,000x max payout
- None!
SITES WHERE YOU CAN PLAT BOOK OF 99 SLOT
GAME INFO AND RTP
FEATURE: | INFO: |
Slot: | Book of 99 |
Theme: | Greek Mythology |
Slot Provider: | Relax Gaming |
RTP: | 99% |
Release Date: | May 30 2022 |
Slot Type: | Video Slot |
Mobile Friendly: | Yes |
MinMax Bet: | £0.10 – £20 |
Maximum Payout: | 5000x |
Reels: | 5 |
Rows: | 3 |
Paylines: | 10 |
Free Spins: | Yes |
Respins: | Yes |
Bonus Game: | Yes |
Multipliers: | Yes |
Progressive Jackpot: | No |
Scatter Symbol: | Yes |
Wild Symbol: | Yes |
Sticky Wild Symbol: | No |
Autoplay: | Yes |
Volatility: | High |
Hit Frequency: | N/A |
SLOT REVIEW

Themed around ancient Greek Gods, Book of 99 is an online slot game developed by Relax Gaming. This Book of 99 slot review will break down everything you need to know about this slot machine in several easy to follow paragraphs.
BOOK OF 99 RTP AND FEATURES
The RTP of Book of 99 is one of the very best around at 99%. This makes Book of 99 one of the highest RTP slots in the UK alongside the popular Ooh Aah Dracula, Monopoly Big Event and Mega Joker.
As well as an incredibly high RTP, Book of 99 also comes with several modern and exciting slot features. The re-trigger free spins are a particular delight. The full list of features in Book of 99 can be found via our list below:
- Free spins
- Wild symbols
- Expanding wild symbols
- Scatter symbols
- Retriggers
- Re-spins
- Multipliers
BOOK OF 99 STRATEGY
The SlotsHawk team has tested Book of 99 at Slotnite casino. In our opinion, it is best to utilise a fairly high betting strategy in order to take advantage of the high return to player percentage. We made bets of £2 per spin whilst playing. The high variance factor meant that we knew that wins were likely to be few and far between. We managed to generate several wins over 20 mins of gameplay, one of which was 20x our bet. At the end of the 30 minute section, we generated a profit of £22.
MAX PAYOUT OF BOOK OF 99
Book of 99 has a maximum potential payout of 5000x the stake, making it one of the best payout UK slots.
Book of 99 was released this year and is therefore an extremely modern online slot game which can be played at mobile slot sites and new online slot sites.
THE SLOTSHAWK VERDICT

“One of the highest RTP slot games in the UK, Book of 99 can be played at a variety of different online casino sites. SlotsHawk recommend this slot game.”
– SlotsHawk Casino Team
CONTRIBUTORS

Greetings, I’m Stephen Cummings
Stephen Cummings is often referred to as ‘The Oracle’. What he doesn’t know about slot games isn’t worth knowing. He’s our genius slot machine analyst who spends most of his time reviewing new games & sites.
Slots analyst since 2020