Book of Stars

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Online casinos with this game

Pribet ➡️

Zodiac Bet ➡️

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Spicy ➡️

Olympus ➡️

International casinos with Novomatic slots.


Book of Stars Free Play

Brought to the world in 2015 by Greentube (Novomatic), the Book of Stars slot offers an exploration of celestial wonders across 20 paylines, featuring a wild and scatter symbol in one, additional wilds, and a free spins round with expanding symbols. Loosely based on the astronomer Galileo, the Book of Stars adds intrigue and mystery, guiding you in your search for fortune from the heavens!

Will you end up wishing on this Book of Stars? Read on to learn all about this game!

Theme of Book of Stars Slot

The Book of Stars slot follows the discoveries of a young explorer as she researches the astronomer Galileo. As such, the game is filled with symbolic references to his time, including a mechanical steampunk style owl, an image of Galileo himself, and a woman with fiery hair. In addition to the mysterious book of stars, and our black-hatted explorer, an additional and very important symbol in the form of an expensive looking ring appears on reels 2 and 4 as an extra wild if you activate Extra Bet. Even the 10 to A symbols are intricately designed.

The 20 payline reel set is placed against a very elaborate backdrop that features two grand pillars with the night sky shimmering at the top of the screen.

Soundtrack of This Game

Start spinning the reels and you’ll be treated to a rolling sound, almost like a marble on a table or a roulette ball round a wheel, after which the reels will clack somewhat noisily into place.

Small wins are announced with a shrill trill, while larger ones are given the more important sound of an alarm bell ringing. A tick tocking sound after your win alerts you to the availability of the gamble feature, which you can use to double your money by correctly guessing red or black for the next card. Wins are totted up and added to your balance with a climbing tone.

Land three or more of the Book of Stars wild scatter and you’ll know all about it, with a musical outburst indicating the triggering of the free spins feature!

Bonus Feature

While the free spins feature is the big pull of this game, it isn’t the only attraction. A few other aspects of this game make it worth playing. Let’s take a look at what they are…

  • Wild and scatter symbol in one: Like a few other of Greentube’s games, though very uncommon in slots in general, the game’s Book of Stars symbol serves as both wild and scatter. Not only does it substitute for all other symbols except the ring, it also triggers the free spins feature!
  • Extra wild: At the top of the reel set is the Extra Bet button that activates an additional wild symbol, the ring, on reels 2 and 4, increasing your chances of winning!
  • Free spins feature: Land three or more of those wild scatter Book of Stars symbols and you’ll trigger 10 free spins with one randomly selected symbol expanding when it’s involved in a winning line!
  • Gamble feature: You have the option to make the most of smaller wins by going for double or nothing with the gamble feature. Simply hit the Gamble button after your win then correctly guess red or black for the next card.

Betting Limits

Playing safely is important. The last thing you want to do is blow your whole bankroll in a handful of spins! That’s why slots have a range of bet amounts you can choose from to create an experience that’s right for you.

The Book of Stars slot offers a variety of bet amounts to choose from, starting at €0.25 per line at the lower end of the scale, to €100 per line at the top end. That gives you plenty of freedom to play as you see fit. Just remember that if you’re playing all 20 lines, that bet per line amount will be multiplied by 20 to give your total bet per spin.

RTP and Volatility

The Return to Player, or RTP, of a slot is a percentage amount that reflects how much that slot is expected to pay out in the long run. You can think of it as the reverse of the house edge. The Book of Stars slot has a Return to Player of 95.16%, placing it as an average paying slot compared to industry standards.

The Book of Stars volatility is pinned as medium, which means that payout values and frequencies in this game vary a fair amount, sitting somewhere in the middle between not varying much and varying wildly.

Book of Stars Tricks

How can you tweak this game in your favour? While there’s no one button you can press to give you an advantage, there are a few things you can do to make sure your winning chances are optimised.

In Book of Stars, make sure you’re playing all 20 paylines. You don’t want to find yourself in a situation where those 5 aligned symbols fall on a payline that you’re not playing!

Also be sure to activate the Extra Bet. While that does mean your total bet will go up, it also means you’ll get another wild symbol, which appears on reels 2 and 4, boosting your chances of winning that little bit more.

And of course, aim for triggering that free spins feature with expanding symbols for the biggest win potential!

Play Book of Stars With Real Money

Exploring Book of Stars in demo mode – that is, using play money – is a wise approach, especially when you’re unfamiliar with the game. It means you have the opportunity to see how it works, how the feature is triggered and where all the paylines are, for example.

When you’re ready, you can watch those wins fill your bankroll for real by switching to real money mode! Simply sign up and make your first deposit at one of our carefully reviewed casinos that offers the game, then start playing and winning for real!