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Double Diamond
RTP95.44%
VolatilityMedium
Da Vinci Diamonds
RTP94.94%
VolatilityLow Medium
Double da Vinci Diamonds
RTP94.9%
Volatility—
Cool Jewels
RTP96.1%
Volatility—
Lock it Link Night Life
RTP0%
VolatilityMedium High
Black Diamond
RTP95.95%
VolatilityMedium High
She's a Rich Girl
RTP95%
VolatilityMedium
Solstice Celebration
RTP96.03%
VolatilityMedium
Gemix
RTP96.75%
VolatilityMedium
Glitz
RTP95.94%
Volatility—
Book of Ruby Slot Comparison
 Book of Ruby | Double Diamond | Da Vinci Diamonds | Double da Vinci Diamonds | |
|---|---|---|---|---|
User Score | (230) | (116237) | (108883) | (59983) |
Return to Player | 0% | 95.44% | 94.94% | 94.9% |
Volatility | — | Medium | Low Medium | — |
Min Bet | 1 | 0.1 | 0.2 | 0.4 |
Max Bet | 100 | 250 | 600 | 800 |
Max Win | — | — | — | — |
Autoplay | No | Yes | Yes | No |
Bonus Buy | No | No | No | No |
Bonus Rounds | No | Yes | Yes | Yes |
Cascading Reels/Avalanche Feature | No | No | No | No |
Number of Paylines | 10 | 1 | 20 | 40 |
| Play Double Diamond for Free | Play Da Vinci Diamonds for Free | Play Double da Vinci Diamonds for Free |
About Spinomenal Game Provider
Spinomenal is a global leader in the gaming industry, specializing in the design, development, and distribution of gaming machines, lottery systems, and digital gaming solutions. With a diverse portfolio of innovative products, IGT offers casino games, slot machines, sports betting, and iGaming platforms. The company is known for integrating cutting-edge technology with a commitment to player experience, providing solutions for both land-based and online gaming operators.
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Spin Five Reels on Mobile, Tablet, or Desktop
The Book of Ruby slot machine is a jewel-themed slot game by Spinomenal, a software provider that likes to keep players interested with top themes and features. Hit winning combos by filling five reels with gems and poker cards. Land the book scatter symbols to trigger free spins with expanding symbols when you play Book of Ruby on mobile, tablet, or desktop.
Play the Retro Bet to Apply Multipliers
Bet 1-100 coins a spin when you play Book of Ruby slot online and hit winning combos on ten paylines. You can win prizes by lining up three to five matching symbols, while wild books substitute for the base game symbols to create more winning combos. Add the retro bet to your staking plan to apply a 1x-5x multiplier to all winning combos when you play Book of Ruby at the best real money casinos.
Trigger Free Spins with Expanding Symbols
Land three, four, or five scatter symbols, and you’ll trigger ten free spins with expanding symbols. Winning combos pay out, then the mystery symbols expand before paying out more prizes. Multipliers are applied to all feature wins if free spins are triggered when playing the retro bet. Spin the Book of Ruby online slot at the best new slots sites.
Symbols
Top Prizes /Features
Book Scatter Symbols
500x + 10 Free Spins
Gems
400 – 1,000
J - A
100-150
Discover Different Kinds of Rubies
Once you’ve played the Book of Ruby slot machine, play more exciting slot games. Trigger free spins and an expand and split feature when you play Ruby Hood by Spadegaming.
Activate top features like bonus cash pot respins when you play Ruby Hunter by Kalamba Games.
Play a True Gem
Now you’ve read our Book of Ruby review, spin this true gem at the best online slot sites. Apply 5x multipliers to winning combos by playing the retro bet. Land the book scatter symbols to play free spins with expanding symbols.
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