Book of 99 Slot ᐈ Demo game + Review

Book of 99 is a cartoon-style ode to Homer Odyssey, and the volatile Relax Gaming video slot comes with a record-breaking RTP of 99 %. Collect 99 book scatter/wilds to bring King Odysseus home to Ithaca, and trigger the bonus round. You can also trigger it the regular way however, and it comes with a chosen expanding symbol for payouts up to 12075x your stake.

User Rating: 6.6/10 (5 votes)

Provider:Relax Gaming
RTP 🔗: 99%
Variance: High
Max Win: x12075.00
Betways: 10
Release Date: 2021-05-04
SlotRank: 3653
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FI
Online Casinos where you can play Book of 99

We have scanned 514 casinos in Finland and found Book of 99 at 236 of them. On the list below, you`ll find the best casinos that feature the Book of 99 slot and accept players from Finland.

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Dolly Casino FI

Up to €1000

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Up to €2000 + 100 FS

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Up to $1200

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All 223 casinos

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Book of 99 Review

The journey home from the Trojan war was far from smooth sailing for Odysseus. It lasted 10 long years, and the brave warrior-King encountered numerous challenges. These included being captivated by the one-eyed Cyclops, as well as being tied to the mast to avoid the luring appeal of the dangerous Sirens. All the while, his ever-faithful queen and wife, Penelope, had her hands full fending off hundreds of suitors hungry for the throne.

It seems that Relax Gaming is hungry for another kind of throne, namely the ‘Book of’ throne. Their courtship to players comes in the form of an alluring 99 % theoretical returns, but the keyword here is ‘theoretical’. There’s no denying that this is an attractive and record-breaking stat, but the volatile nature of this game can still drain your bankroll to zero in the short run. Combined with the Book Collection feature, distinct visuals and a compelling backstory, Book of 99 is undoubtedly up there as a very solid challenger.

Reel-Screen
Book of 99 Slot Reel Screen

Book of 99 Slot Features

The Book Collection feature is one thing that makes this game stand out, and the book serves double duty as both the wild and the scatter symbol, per usual. As a wild, the book steps in for all regular pay symbols to help you form winning combos, and each book you land is also collected in the meter on the left-hand side.

The Wild Collection Meter is clearly inspired by Homer (no, not the goofy Simpson character) and his famous Odyssey. Just like the classic dactylic hexameter poem, the meter depicts the Greek war hero and King of Ithaca, Odysseus, on his dangerous voyage home from the Trojan war (also depicted by Homer in his equally famous Iliad).

Anyway, history lesson aside, Odysseus’ ship moves 1 step closer to home for each book wild you collect, and you need to collect - you guessed it - 99 wilds to fill the meter and reunite the brave King with his very patient wife, Penelope. This awards you the bonus round, and it plays out exactly like if you trigger it by landing 3+ book scatters on the same spin.

Landing more than 3 book symbols makes no difference in this game, as there is no scatter win involved. You trigger the Bonus Round with 10 free spins either way, and the Book opens up to a random page to reveal which symbol becomes the special expanding symbol during the bonus round.

If 1 of the 4 character symbols gets chosen, you need a minimum of 2 anywhere to trigger the expanding symbol feature. The low-value royal symbols require a minimum of 3 symbols to expand. All instances of the chosen symbol expands after the regular win calculation, and they don’t need to land adjacent to generate a win. You can retrigger the feature by landing 3+ scatters on the same free spin.

The 200 Spins Book of 99 Slot Experience

After some smaller wild wins, we landed a bigger one not long before we triggered the bonus round with 3 book scatters. This happens at 1:35 into the 3-minute highlights video, and if you pause the video you can actually read passages from Homer’s Odyssey in the book, which is kind of cool. To see how we fared, simply hit the play button below.

Review Summary

Relax Gaming has understood that you need to go a bit “extreme” to have a shot at the ‘Book of’ throne. The popular genre is as overcrowded with competitors as Queen Penelope’s home is filled with power-hungry suitors in King Odyessues absent. Paying homage to Homer, and The Odyssey in particular, is a nice touch, and the Book Collection system fits the motif perfectly, while also keeping you motivated.

The big headliner is undoubtedly the record-breaking 99 % RTP. Few games are even close to such numbers, and even fewer slots. Just like the Sirens enticed Odysseus men to their destruction with their seductive songs, so might this “magic number” have the same effect on unwary punters. In our experience however, the base game can be as dry as the bones in the one-eyed Cyclops’ cave, and the expanding symbol you get will pretty much make or break your bonus round.

Pros

  • 99 % RTP is almost unheard of
  • Collect 99 books to trigger the bonus round
  • Bonus round w/ chosen expanding symbol
  • (can also be triggered the regular way)
  • Win up to 12075x your stake

Cons

  • Keep in mind that 99 % is in the very long run

If you love Book of 99 Slot you should also try:

Mega Joker - is the only other well-known slot out there featuring a 99 % RTP. Granted, you have to play with the highest possible stake to benefit from such insane returns, and you can win up to 2,000x your stake in the classic 3-reelers’ famous Supermeter Mode.

Book of Sun: Choice - is the highest RTP alternative to Book of 99, and this Booongo Book slot comes with theoretical returns of 97.74 % (at least for the Bonus Buy option). It also comes with a choice regarding the expanding symbol in the bonus round, and payouts up to 5,000x your stake.

Book of Dead - is still the king of Book slots, despite customizable RTP ranges and plenty of “improved” versions from countless competitors. The math model is as finely tuned as a trimmed ferrari, and the expanding bonus round symbols can lead to payouts up to 5,000x your stake.

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Book of 99. Book of 99 slot
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Book of 99 Slot FAQs

What is the Return to Player of Book of 99?

The game comes with an exceptionally high RTP of 99 %. Beware however, as this number is only true for the long run (i.e. hundreds of thousands of spins, if not more).

How volatile is Book of 99?

Volatility is rated high, but it felt pretty darn high when we tested it. Still, it might be a tad less rough than many other book slots.

What is the biggest win possible?

You can win up to 12075x your stake in Book of 99, and this happens when the highest value Odysseus symbol expands on all 5 reels at the same time.

How does the Book Collection System work?

Each book scatter/wild you land is collected in a meter illustrated by Odysseus’ ship moving from Troy to Ithaca. Collect 99 books to fill the meter, bring the absent King home, and trigger the bonus round.

Is there a free spins mode in Book of 99?

Yes, you can trigger the bonus round by landing 3+ scatter also. This awards 10 free spins, and a regular pay symbol is chosen up front to be the special expanding symbol.

Can I play Book of 99 slot for free?

Yes, you can check out the free Book of 99 demo game at the very top of this page (UK players must verify age first). You will also find our list of scanned casinos up there, all confirmed to carry this title.

Scanned Countries

Finland

The Book of 99 slot is available in 236 from 514 scanned casinos. Overall, we have scanned casinos in 56 different markets, and Book of 99 is available in 41 countries. Book of 99 is most common among the casinos in the following countries: CA, FI, NO, AT

Country Scanned [i] With Game [i] In Lobby [i] SlotRank [i] Action
Canada CA 591 266 1 1996 See Data
Finland FI 514 236 1 3653 See Data
Norway NO 410 195 0 3294 See Data
Austria AT 244 152 0 2042 See Data

Show All Countries (41)

Book of 99. Best SlotRank

The Book of 99 Video Slots from Relax Gaming reached its highest recorded position in May 2021 - #33 in the FI market. You can check proof of this achievement on the game’s SlotRank page.

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Game Is Cold
Game Is Cold

Game RTP: 99%

SRP [ i ] : 0.83%

RTP -98.17%

For Last 4 Hours:

Spins: 172

Bets (EUR): 86€

Wins (EUR): 24€

Data supplier:

PalmSlots Casino Go to casino

Book of 99 Attributes

Provider: Relax Gaming
Release Date: 2021-05-04
Type: Video Slots
RTP: 99%
Variance: High
Hit Frequency: 29.83
Max Win: x12075.00
Min bet $, €, £: 0.1
Max bet $, €, £: 100
Layout: 5-3
Betways: 10
Features: Book of ... mechanic, Expanding Symbols, FreeSpins, Scatter symbols, Symbols collection (Energy), Wild
Theme: Ancient civilizations, Book, Cyclops, Gods, Gray, Greece
Other tags: 10 Paylines, 99% RTP
Technology: JS, HTML5
Game Size: 100 MB
Last Update: 2023-02-06
Blog articles: Greece Slots

Game Statistic. Book of 99 by Relax Gaming

Book of 99. Best SlotRank

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Book of 99 SlotRank Calculation

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List of casinos where you can find Book of 99

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  • Crypto Casinos

Dolly Casino FI

Up to €1000

Play on Dolly Casino?

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Lucky7 Casino FI

Up to €2000 + 100 FS

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Energy Casino FI

Up to $400

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Casinonic FI

Up to $1200

Play on Casinonic?

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All 223 casinos

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