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Gemblast Slot - Review, Free & Demo Play

Gemblast
Gemblast
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Updated: 22.07.2025
Reviewed by: Joe Booth
The slot we are going to talk about is called Gemblast and it’s provided by the well-established Endorphina studio. The game saw the light of day on 09/02/2021 and has proven itself as an exciting yet simple video slot that may appeal both to beginner and seasoned players. Further, you will get all the essential information about the slot, such as the RTP rate, volatility, possible winnings, and which online casinos the game is available for real money play.
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18+ | New players only | Terms Apply | Please play responsibly | gamblingtherapy.org

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

General information about Gemblast slot

Rating by Joe Booth:
8
Endorphina
Write a review +25 SJ points
  • Release Date:
    09.02.2021
  • Volatility:
    High
  • RTP:
    96.1%
  • Multiplier:
    No
  • Max. win:
    2,000x
  • Bonus game:
    No
  • Free spins:
    No
  • Scatter Symbol:
    No
  • Wild symbol:
    Yes
  • Symbol Stacked:
    No
  • Jackpot Game:
    No
  • Slot lines:
    10
  • Slot reels:
    5
  • Layout:
    5-3
  • Stakes range (€/£/$):
    0.01 to 50
  • Slot Theme:
    Gems
  • Technology:
    JS, HTML5
More infoLess info

Licensed and tested by

  • GLI (Gaming Labs Certified)
  • ISO 27001
  • MGA
  • ONJN
  • Spel inspectionen

How to Play

Step-by-step guide on how to play Gemblast:

  1. Load the game on your device
  2. Check “i” for game info
  3. Decide on the amount of your bet
  4. Start spinning

Gemblast is a futuristic gem-themed 5x3 slot with 10 paylines and balanced math. The game incorporates some experimental elements that eliminate boredom during gameplay. Although there is only one special Wild symbol, the slot’s other features like the Risk game compensate for entertainment and more winning possibilities. The bets for Gemblast range between €0.01 to €50. You can play the game both in manual and auto modes. Also, the turbo mode that speeds up the gameplay is featured in the slot.

Gemblast RTP and Volatility

8.2 
Gemblast is a highly volatile slot with an RTP of 96.06%.
The game comes with a high volatility rate and an average return-to-player percentage. These characteristics increase the probability of dead spins. On the other hand, the slot’s math model feels balanced enough to produce winning combinations and keep the player engaged during gameplay. The simplest winning combination in Gemblast is the matching of the same three icons. Keep reading to learn more about the slot’s payouts and features.

Theme

7.5 

The game’s action takes place on 5 reels and 3 rows matrix with the starry night skies in the background. The multicolored symbols shaped as faceted gems glow vividly as they spin. The slot has 10 paylines, and the wins are generated when the combo of the same three or more symbols lands on the same line.

The only special symbol in Gemblast is a Star. It serves as the game’s Wild that can replace any normal symbol, creating more possibilities for wins. The normal symbols are represented by the Gems and the classic slot icons.

The most valuable symbols among the gems are the Yellow and the Orange, which pay the highest 20x to bet for the combo of 5. For the same combination, the Bar and the Seven symbols will pay 50x and 100x to bet, respectively.

When the Star icon appears on the reels, it acts as the expander and can trigger from 1 to 3 re-spins, providing good chances for a decent win.

Theme
Gemblast slot - paytable

Mobile compatibility

Mobile compatibility
The slot meets all the modern standards and functions perfectly on any portable device. The developer optimized the game for mobile, tablet, and desktop use so that the player will have the same gaming experience on any of them.

About Endorphina

Endorphina is a young video slot developer that consistently delivers high-quality games with stunning design and balanced maths. The company makes slots on a huge variety of topics such as classic, horror, oriental, adventure, etc. Always on the edge of innovations, the studio utilizes new trends and technologies in its creations, such as Bitcoin-oriented Satoshi’s Secret.

Bonus Rounds & Free Spins

8.2 

Risk Game

The feature that may boost the payout is a Risk Game where you need to guess the right card among the closed ones to increase your win. But be careful! If you guess wrong, you lose everything.
Gemblast slot - risk game

Gemblast Demo Play

On this page, you can play the Gemblast slot in demo mode. You don’t need to register or make any monetary investment to check out the game. Just load the demo, make spins and decide whether it’s your cup of tea or not.

Max Win

8 
Max Win is 2,000x the bet.
From the possible winning point of view, Getblast has a few good things to offer. First of all, the presence of Expanding Wild is a good opportunity for increasing wins. The Risk Game may also appeal to the most venturous gamblers. The game’s normal symbols are very rewarding in payouts and re-spins triggered by the slot’s Wild make it easier to win big.

Overall Rating

8
Gemblast is another simple gem-themed slot that we find quite pleasant. The gameplay and graphics are totally fine, but the lack of the Bonus game and Free spins is a bit disappointing. The game may suit well gamblers who like to take higher risks and keep things simple.
Hits
Low minimum bet
Mobile compatibility
Risk game
Misses
No Scatter
No bonus game

FAQ-Section

Where I can try the Gemblast demo?

The slot’s demo is available for free play on this page.

What is the Gemblast slot’s Scatter symbol?

There is no Scatter in this slot.

Can I play Gemblast on my mobile phone?

Yes, the Gemblast slot is mobile-friendly.

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Joe Booth
Joe Booth
Expert in: News, Blog, Slot reviews, Payments
Joe is an expert online casino player, who knows all the tricks and tips on how to get to the most massive wins. He is also an experienced online casino games reviewer, with hundreds of written articles behind him, on all kinds of online casino games. He makes sure to play them, see how they work, and then gives his honest expert opinion about them to other players, our readers. 

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