Play Gems Bonanza Slot

Gems Bonanza is a cluster pays 8x8 grid slot from Pragmatic Play, and it comes with 5 different base game reel modifiers. This is a highly volatile title with an above-average 96.51% RTP, and a 10,000x potential.

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User Rating: 8.3/10 (6 votes)

Provider:Pragmatic Play
RTP 🔗: 95.54% [ i ] RTP Ranges!
Variance: HIGH
Max Win: x10000.00
Betways: Cluster pays
Release: 01.10.2020 [ i ]
SlotRank: 462
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Gems Bonanza Review

Last Update: 04.02.2022. Author: SlotCatalog.

Gems Bonanza is a cluster pays 8x8 grid slot from Pragmatic Play, and it comes with 5 different base game reel modifiers. This is a highly volatile title with an above-average 96.55 % RTP, and a 10,000x potential. The 5-tier bonus round parades out all 5 reel modifiers like pearls on a string, and each new level increases the win multiplier progressively up to 10x.

You’ll see 64 shining gemstones drop down on every spin, and you need to form matching clusters with between 5 and 25+ symbols to win. The cascading wins feature makes sure to give you plenty of new opportunities on a regular basis, and the different reel modifiers will trigger quite often. This breaks up the base game grind a lot, and makes the whole experience feel less volatile than it actually is.

The pace of the game is pleasant enough, and it’s set to a soothing synth soundtrack. You can place bets between 20p and £100 per spin across all platforms and devices, and the 5 premium gemstones pay out between 50x and 1,000x for 25+ in a cluster. Wilds cannot land organically here, but you can look forward to plenty of wilds from 2 of the 5 reel modifiers. Gems Bonanza is a highly entertaining game that also packs a solid punch, without ever feeling overly brutal or “hard to get”.

Gems Bonanza
Gems Bonanza

Gems Bonanza Features

On every base game spin you’ll see up to 4 different colored spots in various configurations on the wall/map behind the symbols. If you land a winning combo on top of one or more of them, you will trigger the corresponding reel modifiers:

  • Blue spot (Nuclear modifier) – clears all symbols, and gives you a fresh new batch.
  • Pink spot (Wild Gem) – transforms all instances of a randomly chosen symbol into wilds.
  • Brown spot (Squares) – gives you identical 2x2 mega symbols randomly added to the grid.
  • Red spot (Colossal Symbols) – a 3x3, 4x4 or 5x5 mega symbol is placed randomly on the grid.
  • Green spot (Lucky Wilds) – gives you 5 to 15 wilds randomly placed on the grid.

You can win more than one modifier at the same time, and if that’s the case they play out in the order listed above.

On the right-hand side you’ll see a Gold Fever meter, and each tumble win fills the meter with liquid gold from the collected symbols. The meter resets on losing spins, and it takes 114 winning symbols to fill the meter. This triggers the Gold Fever Bonus Round.

The free spins feature has 5 levels, and you start at level 1. The multiplier starts at 2x for level 1, and you will now get all 5 reel modifiers in sequential order. You collect symbols also here, and filling the meter again upgrades you to the next level. You need to collect 116, 120, 125 and 130 symbols to get to level 2, 3, 4 and 5, respectively.

Level 2 to 5 comes with multiplier values of 4x, 6x, 8x and 10x, and all 5 modifiers play out on each new level. The bonus round is over when all 5 modifiers have played out, and you didn’t collect the symbols needed to move to the next level. If you get to level 5, the feature is finished once the 5 modifiers have played out.

Depending on your jurisdiction, you can buy the Gold Fever progressive bonus round by paying 100x your stake. It plays out the same as it would if triggered organically, but UK players cannot go for the buy option.

The 200 Spins Gems Bonanza Experience

Grid slots are usually action packed and exciting, and we very much looked forward to seeing this massive, gemstone riddled 8x8 setup in action. We actually managed to get to the second level in the bonus round, but the rumor is that getting further than that is quite difficult. Check out all the highlights from our 200 spins test session in the video below.

Gems BonanzaVideo Gems Bonanza

Review Summary

Like so many grid slots, Gems Bonanza comes with this “oddly satisfying” quality that makes you feel good inside when playing. There are plenty of base game features to keep you entertained here. However, displaying the name of each feature in bold type in front of the grid every time is a bit over the top. No need for hiccups like that to break up the otherwise nice flow.

The bonus round gives you all 5 features in a row, which is kind of neat, but getting above level 2 is not that easy. Even at that level you can still land solid payouts though, and the 10,000x potential is very solid even for a highly volatile game. There might not be anything brand new to see here. However, all the moving parts have been arranged together in a unique and effective way, which makes for a very decent grid slot experience.


  • 5 different reel modifiers
  • 5-tier bonus round where all 5 modifiers play out sequentially
  • High volatility and 10,000x max win potential


  • Hard to get passed level 2 in the bonus round

If you love Gems Bonanza you should also try:

If you like 8x8 grid slots, we have 24 in our catalog at the time of writing. You can check them all out via the link, or you can take a closer look at our hand-selected options below.

Star Clusters Megaclusters - is a Big Time Gaming innovation that plays out on a 4x4 grid. The bonus round plays out on an 8x8 grid however, and another similarity is all the bright gem symbols. What makes this game unique is the Megaclusters mechanic, and this is a high volatility title with a max win close to 24,000x your stake.

Reactoonz 2 - is the very anticipated sequel to the Play’n Go classic, and it plays out on a 7x7 grid. It comes jam packed with bonus features, and you can look forward to electric wilds, 4 Quantum meter levels and plenty more. Wins above 5,000x is possible in this highly volatile Cluster Pays engine game.

Jammin' Jars - is an 8x8 grid slot from Push Gaming, and it comes with a massive 20,000x your stake potential. It runs on a Cluster Pays engine, and you can land giant symbols randomly here, as well as upgradable jam jar multiplier wilds. There is also a bonus round to be triggered in this highly volatile and entertaining title.

Video and Image gallery

Gems Bonanza. Gems Bonanza slot
Gems Bonanza. Gems Bonanza slot
Gems Bonanza. Gems Bonanza slot
Gems Bonanza
Start Screen. Gems Bonanza slot
Start Screen. Gems Bonanza slot
Start Screen
Reel Screen. Gems Bonanza slot
Reel Screen. Gems Bonanza slot
Reel Screen
Nuclear. Gems Bonanza slot
Nuclear. Gems Bonanza slot
Colossal Symbol. Gems Bonanza slot
Colossal Symbol. Gems Bonanza slot
Colossal Symbol
Features Screen 1. Gems Bonanza slot
Features Screen 1. Gems Bonanza slot
Features Screen 1
Features Screen 2. Gems Bonanza slot
Features Screen 2. Gems Bonanza slot
Features Screen 2
Features Screen 3. Gems Bonanza slot
Features Screen 3. Gems Bonanza slot
Features Screen 3
Gold Fever 1. Gems Bonanza slot
Gold Fever 1. Gems Bonanza slot
Gold Fever 1

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Gems Bonanza Slot FAQs

❔ What is the RTP of Gems Bonanza slot?

The game’s payout percentage is 96.55 %, which is a bit above the average, though, you can get lower payback due to RTP ranges. Available RTP values are 96.55%, 95.54%, and 94.53%. Feel free to learn more about Return to Player (RTP) via this link.

❔ How volatile is Gems Bonanza?

This is a high volatility game from Pragmatic Play, but it feels less like it because of all the modifier action you get in the base game.

❔ What is the biggest win possible?

You can win up to 10,000x your stake here. This amounts to a max payout of £1,000,000 if you play with the highest possible stake of £100 per spin.

❔ How does the 5 reel modifiers work?

You trigger the modifiers by landing winning combos on colored dots on the background wall/map. Each color represents a different modifier, and you can trigger more than one at the time.

❔ Is there a free spins mode in Gems Bonanza slot?

Yes, it comes with 5 tiers, and all 5 reel modifiers play out sequentially for each tier you level up to. There is also a multiplier that starts at 2x and reaches 10x at tier 5.

❔ How many winning ways are available?

This is a Cluster Pays engine game, and you need to connect between 5 and 25+ identical symbols horizontally or vertically to win.

❔ Can I play Gems Bonanza for free?

Yes, you can try Gems Bonanza slot for free via the demo version at the top of this page (UK players must verify age first). Feel free to check out all casinos that carry this game up there too, and play with a sweet welcome offer.

Scanned Countries

US Virginia

Sorry, Gems Bonanza is not available for this market. In total, we scanned casinos at 52 in various markets. Gems Bonanza is available in 47 countries. The markets with the highest number of casinos are: FI, CA, NO, GB

Country Scanned [i] With Game [i] In Lobby [i] SlotRank [i] Action
Finland FI 615 442 9 340 See Data
Canada CA 607 393 10 211 See Data
Norway NO 498 386 11 262 See Data
United Kingdom GB 717 357 4 462 See Data

Browse All Countries (47)

Gems Bonanza Free Spins and No deposit Bonuses

We did not find any No Deposit, Free Spins or Sign Up bonuses for US Virginia. It’s possible that this type of bonuses is forbidden for your country. You can check the list of Welcome Bonuses and Welcome Packages available for US Virginia.

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