Gronk’s Gems

Awesome 8.6 / 10

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Gronk’s Gems Free Demo Play

Cave Trolls remain fascinating creatures from Scandinavian folklore. We’ve seen them ugly and brutal in the works of J.R.R Tolkien, yet these legendary monsters of the Norse world will be far more docile and gentle in the Gronk’s Gems slot developed in December 2022 by the Hacksaw Gaming studio.

The Best Online Casinos & Bonuses to Play Gronk’s Gems for Real Money

Gronk’s Gems - Slot Review

First of all, it is important to understand that the game belongs to Hacksaw Gaming’s Poketz series, this casino game is primarily optimized for mobile use, but it is up to you to discover it on a computer or tablet.

Set in the middle of the Nordic wild, Gronk’s Gems slot is home to an unusual and rather gentle Troll capable of delivering prizes of up to 7500x the stake to players. This strange and imposing beast appears next to the 6×6 row reels and works with group payouts. With a medium volatility, Gronk’s Gems releases an RTP of 96.24% and essentially features two Free Spins bonuses along with the Epic Gem feature.

Gronk’s Gems vs. 3 other slots from Hacksaw Gaming

Slot nameRTPMax. winMin. betMax. bet
Gronk’s Gems96.2%7,500x$0.10$100
Pug Life96.3%7,500x$0.10$100
Tasty Treats96.2%10,000x$0.20$100
Cash Quest96.2%7,500x$0.20$100

When starting this folky adventure, you’ll need to start by betting between $0.10 and $100 per spin. You will win prizes when at least 5 or more of the same symbols connect on the grid. Depending on the symbols and the number in the winning group, you will win varying prizes. Green, blue, pink and yellow ores can pay between 0.20x and 200x the stake. Blue, purple, star or red diamond stones can pay between 0.50x and up to 1500x the stake.

Another thing to know is that each win leads to a cascade where all winning symbols are destroyed to make room for new ones that can in turn create a win. There are also many other special symbols that can add an extra twist to the game with two free spins bonuses.

Gronks Gems

In the Gem Hoarder bonus, every cascading symbol increases the multiplier by +1.

Charged Symbols & Epic Gem

The winning symbols disappear and allow other symbols of the same type to go into a charged state, they are brighter and more visible on the charge bar above the grid. These symbols remain charged until the end of the stunts.

There is an Epic Gem Scatter represented by the multi-coloured diamond, this can appear during the stunts after the winning symbols have been removed and will activate all the charged symbols on the grid into the strongest charged symbol on the grid. All loaded symbols are then absorbed by the Epic Gem and counted as if they were a large winning combination to always create a minimum of 5 identical symbols. Once all the loaded symbols have been absorbed, the Epic Gem explodes and triggers a new cascade.

Gronk’s Treasure

By landing 3 troll heads during the same spin, you will trigger the bonus with 10 free spins. During the feature, you’ll have a much better chance of landing the Epic Gem symbol for big wins.

PROs & CONs of Gronk's Gems


  • X-Gem multiplier (every symbol increases the multiplier)
  • Mega symbol modifier
  • Win up to 7,500x
  • Bonus buy options


  • RTP may differ in different casinos

Gem Hoarder

By landing 3 bags of gems on the same spin, you will trigger 5 Free Spins that are able to re-trigger each time 3 more bags appear in play. This feature has a progressive global multiplier that increases when winning symbols are removed from the game. The multiplier increases by the amount of symbols removed and each winning combination that connects to an X-Gem symbol benefits from the overall multiplier that will apply to the winnings.

Buy Bonus

You can access various bonus features in the Gronk’s Gems casino game. The BonusHunt Featurespins feature allows you to increase your chances of accessing one of the two bonuses by five, this feature costs 3x the bet. Otherwise the Gronk’s Treasure and Gem Hoarder bonuses are available for 110x and 200x the wager respectively.

Win up to 7500x the stake with Gronk’s stones!

This kind and curious troll will show his generosity in Gronk’s Gems slot with the Epic Gem feature absorbing all loaded symbols to create big wins. In addition, the two bonus features will make the game even better with their remarkable features that can lead to winnings of up to 7500x the bet.


You do receive both a standard bonus round with more frequent Epic Gems and a Gem Hoarder round where winning symbols increase the win multiplier that is used by the X-Gem symbol.

Yes, at the very top of our page there is a free Gronk’s Gems demo game. Additionally, there are casinos that our scan has validated carry this title.

Between cascades, Epic Gems can appear, and it changes all charged symbols to the one with the highest value before absorbing them as a win. At the conclusion of a series, this starts a new cascade.

The default potential for their mid-range slot series is Gronk’s Gems, which has a top prize of up to 7,500 times your wager.

Software Hacksaw Gaming
Slot Types Megaclusters
Reels 6x6
Paylines Cluster Pays
Slot Game Features Avalanche, Bonus Buy, Cascading Symbols, Cluster Pays, Colossal Symbol, Free Spins, Multipliers, Scatters, Symbol Collection, Wild Symbol
Min. Bet 0.10
Max. Bet 100
Slot Themes Gems, Monsters
Slot RTP 96.2%
devices Mobile versionTablet versionDesktop version
Gronk’s Gems Slot by Hacksaw Gaming

About the author

Kate Ko

Kate Ko / Games editor

last updated

Kate joined CorrectCasinos' game team in the late 2021. She's here to find and review all new and upcoming slots titles, so you can just enjoy their free play.

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