Gems Bonanza Slot Review
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Gems Bonanza Demo
Recommended Casino
5,500+
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United Kingdom (UKGC)
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Gems Bonanza Slot RTP, Details & Wager Limits
The Gems Bonanza slot is played on an 8×8 grid. Form a winning combination by landing a cluster of 5 or more matching symbols or wilds. The more matching symbols, the bigger the payout. You can land winners from multiple symbols from the same tumble.
Stakes in Gems Bonanza range from between 20p and £100 per spin. Use the + and – buttons in the bottom right-hand corner of the screen to adjust. You can run between 10 and 1,000 autospins if required. There are also options for quick and turbo spin mode if you want to ramp up the pace. Both Autoplay and the quick/turbo modes are not available in the UK.
The Gems Bonanza RTP is 96.55% which is well above the 96% slots average. The volatility is very high (5/5) meaning big wins will be hard to come by. The chance to hit big wins in a short time span is higher on the flip side.
In terms of payouts, it can deliver some big potential rewards though. The maximum payout is 10,000 x your total bet per spin. This can be won during the Gold Fever Progressive feature (more details below).
Theme – follow the map to lost treasure
With an Aztec theme, shimmering jewels dominate the reels in the Gems Bonanza slot. It conjures up images of an Indiana Jones adventure. In the backdrop, a mysterious pyramid building appears as well a statue that fires off the modifiers when they strike. The bright visuals here are sharp and clear. That’s important in a slot that has so many moving parts. There’s a panpipe-heavy backing track playing in the background.
On the reels are 7 brightly coloured gems. The most rewarding symbol is the red jewel. This pays 1,000 x your total stake if you land a cluster of 25 or more matching symbols.
There’s also a wild symbol that replaces all symbols when it appears in the Wild Gem and Lucky Wild modifiers. There is no scatter or bonus symbol as you’ll discover below.
| Symbol | Payouts/Info |
|---|---|
 Blue Gemstone | 25= pays 50 x stake |
 Pink Gemstone | 25= pays 75 x stake |
 Yellow Gemstone | 25= pays 100 x stake |
 Turquoise Gemstone | 25= pays 150 x stake |
 Green Gemstone | 25= pays 300 x stake |
 Purple Gemstone | 25= pays 500 x stake |
 Red Gemstone | 25= pays 1,000 x stake |
 Wild | Substitutes for all symbols + only appears in Wild Gem + Lucky Wilds features |
Gems Bonanza Mobile
You can play Gems Bonanza on all devices. This includes mobiles, laptops, PCs and tablets. Despite the 8×8 game grid being much larger than a standard slot, the crystal-clear imagery is very easy on the eye. The smartphone/mobile version works very nicely indeed.
Gems Bonanza Bonus Features
In the Gems Bonanza slot, the gameplay is a little unusual. There are 8 bonus features in total. There’s the grid setup and tumbling reels for starters. Coloured markers can in turn can bring a host of modifiers into play. Then there’s the Gold Fever Feature where the modifiers play out in turn. Work through the levels there to activate multipliers. I’ll start with the game grid.
Tumble feature
The game is played using a Tumble feature. After a winning combination is created, all the successful symbols are removed from the reels and new symbols drop in and replace them. A new payout calculation then follows. If you land a new winning combination, the process is repeated. The tumbles keep on coming until there’s no new winner on display. This is pretty much a standard feature of a grid slot.
Spin features
On any base game spin, you could see a coloured marking appear behind a symbol. If that symbol becomes part of a winning combination, the coloured mark triggers a modifier. If that creates a winner, a standard tumble then follows. Again, these continue until there’s no new winner. The markings deliver the following extras. It’s possible to land multiple modifiers on the same spin. The modifiers/features play out in sequence.
| Feature | Mark | Description |
| Nuclear | Blue | All the symbols on the grid are removed + a new set of symbols replace them |
| Wild Gem | Pink | After the round of tumbles is complete, all examples 1 symbol turn into wilds |
| Squares | Brown | A 2×2 symbol block is added to a random position on the grid |
| Colossal | Red | A 3×3, 4×4 or even 5×5 symbol block is added to the grid |
| Lucky Wilds | Green | Between 5-15 wild symbols are added to the grid with a new tumble to follow |
Gold Fever Progressive feature
Each time you land a winning cluster from a single set of tumbles, the symbols are added to a meter to the left of the reels. Collect 114 symbols from a single spin and a set of tumbles to trigger the Gold Fever Progressive feature.
You’ll then get a ‘spin’ where all the modifiers play out in succession. Boosting your chances here is a 2x multiplier. Once again, winning symbols are collected in a meter. Collect enough symbols to fill the meter and you’ll advance to the next level where even bigger multipliers are in play:
| Level | Symbols Collected | Multiplier |
| 1 | 114 | 2x |
| 2 | 116 | 4x |
| 3 | 120 | 6x |
| 4 | 125 | 8x |
| 5 | 132 | 10x |
The meter reverts to zero at the start of a new spin. Finally, in some territories, you’ll have the option to buy the Gold Fever Progressive feature for a fee of 100 x your total stake. This is known as the Gold Fever feature. The Collect numbers are slightly different to standard play but otherwise, the feature is the same.
Gems Bonanza Review Summary – exciting + high win potential cluster pays slot
I was very impressed by what I found in the Gems Bonanza slot. The sound and visuals are terrific, creating loads of atmosphere. The modifiers keep the cluster pays game engine motoring along too.
The action here can really rev up during the Gold Fever Progressive feature, especially if you collect enough symbols to advance through the levels and bring the larger multipliers into play. It reminds me of various grid slots from Play ‘n GO in the way the features come into play (like Miner Donkey Trouble and Reactoonz 2).
The best of the Spin features is the Lucky Wilds feature as landing up to 15 wilds can easily give you 114 or more winning symbols. This will in turn bring other levels and their subsequent multipliers into action. The hope is that you get a big multiplier with all the Spin features playing out in sequence.
With 10,000 x bet max wins, Gems Bonanza is a potentially lucrative grid slot that benefits from a higher than average RTP rate. It’s well designed, has lots of extras but is high variance.
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Chris is a slots expert that has reviewed and played over 10,000 slots online. Having being in the iGaming industry since 2004, he loves digging into the mechanics behind the slot games, playing the various bonus features and giving an honest verdict from a player’s perspective.
