How to play Book of Sun mobile slot
With 10 paylines, expanding scatter pay symbols in the free spins and 5,000 times your bet max win, there are lots of reasons to play this Book of Sun mobile slot.
If all these features sound familiar, including the name, you have good reasons to scratch your head. That would be because this is a clear copy of the famous Book of Ra Deluxe slot by Novomatic.
To be fair to Booongo studios, they are not the first to create a homage to that iconic slot; Play’n GO have very successfully done a modern take in what is now their classic Book of Dead mobile game.
So what can this Book of Sun slot online bring that’s new to the table? Absolutely nothing, but that’s not always a bad thing.
You get more free spins but the same top payout!
One of the things that everyone loves about these Book of Ra ripoffs are the free spins bonus games.
Because during the free spins bonus, one symbol will be chosen to act like an expanding scatter symbols.
What is an Expanding scatter symbol? Basically, the symbol will now expand to cover the reel and pay regardless of where it is on the reels. So if you get a symbol on reel 1, 3, and 5, it expands and you get 10 three of a kind wins.
Because this is 10 payline slot, after all, so you don’t get as many wins as with (say) the 243 ways to win slot Vikings.
This Book of Sun slot gives you 12 free spins when you trigger the feature, unlike Book of Ra or Book of Dead which only gives you 10. That’s an improvement right there, right?
The Book of Sun slot is not the best of it’s kind
Yes you do get more free spins, but what you don’t get is as many chances at the bigger wins.
Because you have to hit the bonus games to get wins that come close to 100 times your bet or more, you want the Book of Sun free spins to come around often.
And they simply don’t. This could be because Book of Sun has an RTP of 95.31%, which is higher than Book of Ra Deluxe 6 slot (94. 26%) but lower than Book of Dead (96.21%).
So we know where we’d put our money if we have a choice. That said, this new version of the expanding scatter bonus is fun enough and the Egyptian theme is well done.
If you come across it and are a fan of the style, it’s not without its charm, and certainly not without its big slot wins.
Game Screenshots
Book of Sun slot stats
| Mobile Slot released | November 2018 |
| Slot type | Video Slot |
| Software | Booongo |
| Slot reels / paylines | 5 Reels / 10 Paylines |
| House edge / RTP | 4.69% / 95.31% |
| Slot volatility | High |
| Min/Max bet | 0.20 / 30 |
| Max win | 5,000 times your bet |
| Free spins | 12 Free Spins / 1 Expanding Scatter Pays Symbols |
| Bonus rounds | Wild, Scatter, Expanding Scatters, Free Spins |
| Slot Themes | Adventure & Explorer |
Bonus Features
Wild Scatter: The Book of Sun symbol is wild and the scatter at the same time. It can be used to replace any other symbols on the 5 reels, but 3 will also trigger the free spins.
The Expanding Scatter Free Bonus Games: 3 Wild Scatter symbols will trigger 12 free spins where one of the 9 symbols will be randomly chosen to expand.
It will also pay like a scatter - so it doesn't need to be from left to right to create a win. If it expands and covers reel 1, 3, 4 and 5, you get 10 four of a kind wins.
Book of Sun Review Conclusion
This Book of Sun slot on mobile might not be unique, or even have features we've not seen before, but what it is is fun to play.
The expanding scatter free spins offer plenty of excitement and opportunities for some decent payouts, while the wild acting as a scatter gives some helpful boosts.
It's not the best Egyptian themed slot you could take a spin on, but it's also not the worst offering you spins from as little as 0.20.
Time to see if the Book of Sun holds the answers you're looking for.
Play Book of Sun Slot at one of our best slot sites
Review by Lucky Mobile Slots, last updated: October 31, 2019 - Rating
