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Gem Miner Slot - Review, Free & Demo Play

Gem Miner
Gem Miner
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Updated: 22.07.2025
Reviewed by: Fabio Duarte

Gem Miner is an interesting slot machine created by the Expanse Studios provider. The game was released on 26/12/2021. You can play the game both from PCs and mobile devices. Moreover, you can test the slot for free if you launch a demo mode. This review describes the slot's RTP, volatility, max reward, etc.

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In this review
  1. Slot details
  2. Theme
  3. Bonus Rounds & Free Spins
  4. Summary
  5. Where to play
General information about Gem Miner slot

General information about Gem Miner slot

Rating by Fabio Duarte:
7.1
User’s Rating: Not rated yet
Expanse Studios
Write a review +25 SJ points
  • Release Date:
    26.12.2021
  • Volatility:
    Medium
  • RTP:
    95.2%
  • Multiplier:
    Yes
  • Max. win:
    3,000x
  • Bonus game:
    No
  • Free spins:
    No
  • Scatter Symbol:
    No
  • Wild symbol:
    No
  • Symbol Stacked:
    No
  • Jackpot Game:
    No
  • Slot lines:
    3
  • Slot reels:
    3
  • Layout:
    3-3
  • Stakes range (€/£/$):
    1 to 1,000
  • Slot Theme:
    Gold mining
  • Technology:
    HTML5
More infoLess info

Licensed and tested by

  • GLI (Gaming Labs Certified)
  • MGA

How to Play

Use this short guide to start playing the Gem Miner slot.

  1. Click “I” to find out more about the game rules, features, payouts
  2. Apply “-/+” to set the size of your bet
  3. Press the Spin button to start the game

Gem Miner is an online slot with a simple 3x3 reel grid, and just 3 paylines. The minimum bet you can place in the game is €1, and the maximum reaches €1,000. The max reward in the game is 3,000x the bet. The slot has game symbols but they don't offer any interesting features.

Gem Miner RTP and Volatility

7 

Gem Miner is a slot with an RTP of 95.18% and medium volatility.

Gem Miner is a great slot machine that has an RTP of 95.18%. The slot's volatility is medium. This means that you will be able to win average prizes with average frequency. So, if you like simple slot machines that pay good rewards, it's high time to try out the Gem Miner slot.

Theme

8 

The theme of this slot machine is mining. The reels are set at the entrance of the underground mine. They are located inside the wooden structure and are filled with different minerals and gems. The background is dark. The soundtrack is simple but it adds to the theme of the game with a light and uplifting tune.

The game doesn't have any special symbols. The game’s regular symbols are carbon, amber, gold, emerald, amethyst, and diamond. To win, you need to line up 3 matching symbols along 1 of the 3 paylines. There are wooden arrows pointing to each line that will let you know where a win has occurred and how much your valuable minerals cost.

Theme

Gem Miner slot paytable

Mobile Compatibility

Gem Miner slot mobile

Expanse Studios company adapts all new games to launch in mobile versions. Gem Miner slot can also be opened on smartphones and tablets. It supports most models on key operating systems. The mobile version is easy to use, it offers all the functions of the desktop version and is not inferior to it in terms of graphics quality. It opens quickly at low Internet speed and allows you to play comfortably even on devices with low performance.

About Expanse Studios

Expanse Studios started its activity in 2019. The provider creates games for online casinos. It produces 2 types of games: table and card games, and online slot machines. The developer's content is endowed with incredibly great graphics, a large set of original bonuses, and exciting gameplay. In addition, all the suppliers’ games work on smartphones, tablets, and computers directly in the mobile browser.

Some of the games created by this provider are Book of Egypt, Lucky Betting Shop, Mayas Treasure, etc.

Bonus Rounds & Free Spins

6 

Gem Miner is a classic slot machine that doesn’t include any bonus features or Wild and Scatter symbols. It just has traditional, simple gameplay on an interesting and uniquely styled reel grid.

Gem Miner Demo Play

You can test Gem Miner for free on this page. To do this, just launch a demo version of the slot. The demo version doesn't allow winning real money. However, it is the best way to study the game rules and features before you start placing bets for real money.

Max Win

7.5 

The max reward in the slot is 3,000x.

Gem Miner is a simple classic slot machine. However, it can increase your initial bet by 3,000x. The most valuable symbol in the game is a diamond. By making combinations of these symbols on all 3 paylines, you will be able to win the top reward of this slot. So, start spinning the game reels to try your luck and win cool cash prizes!

Overall Rating

7.1

Gem Miner is a classic slot machine created by a reliable provider. It doesn't have any bonus features or special icons. The slot will be suitable for fans of classic slot machines. The game has a convenient mobile version, and it can be launched for free in demo mode.

Hits
Nice design
User-friendly interface
Great graphics
Misses
No special symbols
No bonus features
High minimum bet

Gem Miner Slot - FAQ

Do I need to make a deposit to play this game?

You can play this game both for free in demo mode and for money.

What is the most valuable symbol in Gem Miner?

Diamond is the most valuable icon in the game.

What is the Return to Player (RTP) rate of Gem Miner?

The RTP of this slot is 95.18%.

Can I earn real cash prizes in Gem Miner?

You can obtain up to 3,000x the bet.

Does the Gem Miner slot have a jackpot?

No, it doesn’t.

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Fabio Duarte
Fabio Duarte
Expert in: News, Blog, Slot reviews, Payments
Fabio is a young writer with +6 years of experience in gambling & betting. Fabio creates professional reviews of casino and slots. Every single article Fabio made exhibits deep analytical skill and comprehensive coverage of a topic. It’s Fabio – one of the leading authors on slotsjudge.com.

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Reviewed by Editor-in-Chief
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