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Gems Bonanza™ slot review

Added by Pragmatic Play. Information last updated: 15/06/2021

User rating:

- (0)

Expert rating:

4.3 (1)

Game information

Game supplier: Pragmatic Play

Release date:10/2020



Max. win:bet x 10000

Mobile version:Support all devices

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Game design:



Game sounds:

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Screenshot Screenshot Screenshot
RTP (Return to player):
Max. win:
bet x 10000

Bojoko score (compared to other slots on Bojoko)
Pragmatic Play score (compared to other slots of supplier)

Expert's review Kati Saari

Slot tested

In the depths of the secret Aztec mines, the gold flows endlessly and the jewels come pouring down. In the Gems Bonanza slot game, you get to peek inside, collect the colourful gemstones and with them ask for the favour of the ancient gods.

Gems Bonanza is a high volatile slot game, but it’s the kind without any actual reels. Instead, it’s an 8x8 sized grid where you get to blow up gems. The gems give payouts on their own but they can also hide secrets. These secrets may do just about anything, from adding a random colossal gem to clear the entire grid.

The game greatly resembles Play ’n GO’s popular games, such as Gemix and Energoonz. Both of these slots also work on grids and the player can collect different kinds of boosts to increase their chances of winning. So, if you’re a fan of the games like these, Gems Bonanza might be right up your alley.

By collecting the gemstones you also collect points to the Gold Fever meter. By filling up the meter opens the bonus game with a chance to get your 10x your winnings!

Graphics and sound

Although the theme doesn’t get much explanation in the game, it’s still pretty obvious by looking at the stone statues and faces. If the Aztec’s style isn’t familiar, then you might recognize the similarity with NetEnt’s famous slot, Gonzo’s Quest. There are lots of shiny and colourful gemstones covering the grid and the features have been done well. Though, I wouldn’t expect any less from Pragmatic Play at this point - their games have been looking better and better each year.

The music is well-composed and quite atmospheric. I was very happy to notice that I didn’t catch the end of the track, meaning that the music loops perfectly. This makes it easy and enjoyable to listen and it doesn’t get on your nerves.

Symbols and wins

Gems Bonanza is a slot game with an 8x8 grid. Winning combinations need at least 5 of the same kind of symbols touching each other either horizontally or vertically. The position of the combination doesn’t matter.

  • 25+ red stones pay 1,000x your bet
  • 25+ purple stones pay 500x your bet
  • 25+ green stones pay 300x your bet
  • 25+ turquoise stones pay 150x your bet
  • 25+ yellow stones pay 100x your bet
  • 25+ pink stones pay 75x your bet
  • 25+ blue stones pay 50x your bet

The game also has Wild symbols which are golden tablets with a small, green gem embedded inside. This symbol only appears as a part of Wild Gem and Lucky Wilds features. It substitutes any other symbol in the game.


  • Tumble feature: Winning symbols explode and new symbols are dropped in their place from above. This feature is also known as Cascading Reels.
  • Spin features: The base game can have different coloured marks behind the normal symbols, which when activated trigger a spin feature.

The Spin feature marks occur randomly and you can get up to 5 of them glowing behind the normal symbols. They activate if the symbol on top is a part of a winning combination.

The Spin features only start after there are no more winnings to collect from the base game. If you manage to collect more than one Spin feature at the same time, they trigger in the following order:

  • Blue mark - Nuclear: Clears the entire grid and replaces the symbols with new ones.
  • Pink mark - Wild gem: Turns all instances of one random symbol to a Wild.
  • Brown mark - Squares: Adds a random number of 2x2 sized gems on the grid.
  • Red mark - Colossal symbol: Adds a 3x3, 4x4 or 5x5 sized colossal gem on a random spot on the grid.
  • Green mark - Lucky Wilds: Adds 5 to 15 Wilds on random positions.
  • Gold Fever progressive feature: Collect enough gems and receive the favour of the gods.

On each spin, the winning symbols are converted into points. These points are then added in the Gold Fever meter and if it fills up, you’ve won the Gold Fever progressive feature.

Gold Fever has five levels and the feature starts from level 1. Each level has its own minimum number of points to collect if you want to advance on a higher level. With every level, you also get a better win multiplier:

  • Level 1: multiplier 2x
  • Level 2: multiplier 4x
  • Level 3: multiplier 6x
  • Level 4: multiplier 8x
  • Level 5: multiplier 10x

Gold Fever ends when there are not enough points for the next level, or after all of the Spin features of level 5 have been used.

In short, on each level, you get to use all of the Spin features in the order mentioned above. It might be enough to fill the Fever meter, or it might not.

My experiences

Apart from many other providers, Pragmatic Play feels like they’re trying to create something new with every game. Not just recycling old material or mechanisms from other slots. With Gems Bonanza, however, they have copied many ideas from others and might have been better off adding more of their own ideas.

Like so many slot games with grid, there’s so much happening but the payout for it is usually a let-down. After my first chains of wins and triggering a couple of Spin features, I was amazed that I only won around 4-5 times my bet. Sometimes even less than that. The base game is very mingy indeed, and it’s not an easy task to fill up the Gold Fever meter needed for the chances of better payouts.

Also, at first, I didn’t quite get the Nuclear feature. It just blew everything up and filled the grid with a new set of gems. This felt oddly unbalanced as the other features actually make it possible to win more and it’s not nearly as probable with the Nuclear. But, after visiting the Gold Fever feature, it made more sense. As all of the Spin features activate during the Gold Fever levels, every level always starts with the Nuclear clearing off the table. This also removes any remaining Wilds and thus brings down any better chances for you to pass the level. Sneaky.

In summary, Gems Bonanza is a gorgeous slot that’s fun to play, it has multiple interesting features and the potential for sizable winnings. But, it also requires a hefty balance and time.

Overall rating:


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  • Features

    Wins and bets

    RTP (Return to Player):96.55%


    Max. win:bet x 10000

    Min. bet:£0.2

    Max. bet:£100

    Progressive jackpot:

    Reels & playlines



    Non-standard layout:

    Max. lines:20

    Min. lines:20

    Win both ways:

    Other features


    Expanding reels:

    Stacked symbols:

    Colossal symbols

    Auto play:

    Turbo play:

    Quick play:

    Virtual reality:

    Bonus features

    Bonus game:

    Random bonus:

    Progressive bonus:

    Buy bonus:

    Free spins:

    Scatter symbols:

    Bonus game symbols:


    Standard wilds:

    Sticky wilds:

    Walking wilds:

    Stacked wilds:

    Random wilds:

    Multiplier wilds:



    Walking re-spins:

    Sticky re-spins:

    Cascading reels:

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    You can play Gems Bonanza™ in English, Finnish, Swedish, German and 20 other languages.

    All supported languages:
    English, Finnish, Swedish, German, French, Spanish, Italian, Russian, Bulgarian, Danish, Polish, Norwegian, Portuguese, Romanian, Serbian, Turkish, Korean, Japanese, Indonesian, Thai, Vietnamese, Malay, Chinese


    Gems Bonanza™ supports GBP, EUR, SEK, NOK and 21 other currencies.

    All supported currencies:
    GBP (£), EUR (€), SEK (kr), NOK (kr), DKK (kr), RUB (₽), USD ($), CAD (C$), AUD ($), ZAR (R), TRY (₤), COP ($), BRL (R$), CNY (¥), MXN ($), VND (₫), KRW (₩), JPY (¥), MYR (RM), PHP (₱), SGD ($), THB (฿), HKD ($), IDR (Rp)


    Release date 10/2020
    6th newest on Pragmatic Play 200th newest on Bojoko
    RTP 96.55% 0.51% > average
    6th highest on Pragmatic Play 228th highest on Bojoko
    Win up to 10000 x your bet
    9th highest on Pragmatic Play 270th highest on Bojoko
    Paylines 20 0% < average
    18th highest on Pragmatic Play 578th highest on Bojoko
    Min bet £0.2 per spin
    13th lowest on Pragmatic Play 625th lowest on Bojoko
    Max bet £100 per spin
    14th highest on Pragmatic Play 287th highest on Bojoko
    Rated 0 by 0 members
    2nd most rated on Pragmatic Play 38th most rated on Bojoko
    40 more slots listed by Pragmatic Play

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    Expert's profile


    Kati Saari

    Kati Saari

    Kati Saari has worked in the gambling industry since 2014. She has tested hundreds of casinos and written thousands of articles while evolving into an iron-clad expert in her field. Having a true passion for her work she’s adamant not to let anything past her without thorough research.

    Latest reviews:
    Gems Bonanza™ cover

    Game supplier:Pragmatic Play

    Release date:10/2020

    RTP (Return to player):96.55%

    Max. win:bet x 10000

    Mobile version:Yes

    User rating: 0
    Expert rating: 4.3

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