3 Coin Volcanoes Online

Author: Herman Brooker

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Created by 3 Oaks Gaming
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3 Coin Volcanoes attributes

RTP 96.58% Reels 4
Volatility High Rows 3
Min bet C$0.10 Max bet C$60
Max win 10000x Paylines 15
Wild Symbol Yes Scatter Symbol Yes
Bonus Game Yes Progressive Jackpot Yes
Free Spins Yes Autoplay Yes

3 Coin Volcanoes review

In 2024, 3 Oaks Gaming continued its popular Hit the Bonus slot series. The new 3 Coin Volcanoes slot will undoubtedly appeal to those familiar with the Hold & Win system. The main difference from previous games is that it features four reels instead of three. The Volcano system also stands out with its exciting bonuses and significantly increases the winning potential during the bonus game.

Those unfamiliar with the slot machines in this series might be surprised by the fast-paced gameplay and winning potential. However, there are no guarantees, and it’s important to keep this in mind when choosing your betting strategy. I’ll tell you more about it in this review.

Gameplay and Symbols

The game 3 Coin Volcanoes boasts high-quality graphics and is packed with visual effects. The main theme is volcanoes and fire. The design is dominated by shades of red, and the volcanoes periodically erupt, spewing lava in the form of boosters. Visually, the game is pleasing to the eye, both on PC and mobile. A captivating soundtrack helps you focus and fully immerse yourself in the atmosphere.

The game board consists of 4 reels, each displaying 3 symbols. The paylines are customizable: you can activate 1, 2, or 3. However, the winning mechanic is unusual, as the Hold & Win bonus game is the core gameplay. You can only win by activating the bonus game, and to do so, you must land 4 symbols on one of the active paylines.

On the game board, you will only see special symbols, such as coins with face values, Mystery symbols, and Jackpot symbols. The payout amount depends on the bet; you can choose between $0.10 and $60 per spin and per line. The maximum bet per spin is $180.

Features and bonuses

The 3 Coin Volcanoes slot machine is designed as a Hold & Win bonus round. While in other games you can trigger this round during the base game by forming winning combinations, here the mechanic is different. There are no wins in the base game; they are only available during the bonus round.

The bonus game is activated when 4 symbols are placed on the active payline, i.e., when the line is completely filled.

There are two types of symbols: coins and jackpots. Additionally, you can see the Mystery symbol on the game board. When it opens, it awards either a coin of a specific value or a jackpot.

You can also see the symbol of the burning sun: it’s a collector. It attracts all the values, adds them up, and gives you a big win.

Before starting the bonus game, you activate a green, red, or blue volcano. It’s also possible to activate two or three simultaneously. These are bonus turn boosters.

  • Green (Life): Creates green lava around the scale with 3 respins. After using all 3 respins, the scale regenerates, giving you a better chance to win.
  • Red (Multi): A volcano of multipliers, adding from 1 to 8 multipliers to the playing area. Adding up the multipliers allows you to win big.
  • Blue (Grown): This volcano expands the playing area to a 4×5 grid. This gives you more free spaces, increasing your chances of winning big.

There are 5 jackpots in the game, which you can win during the bonus round. To do so, you must land the corresponding symbol or fill in the game field:

  • Mini: 10x
  • Minor: 20x
  • Major: 50x
  • Large: 500x (when all 12 cells are filled)
  • Royal: 2000x (when Grow Booster is activated and 20 cells are filled)

Bonus purchase function

You can instantly activate the bonus game and start winning. Here is the activation cost:

  • 40 bets – a round with a random volcano;
  • 75 bets – a round with 3 active volcanoes;
  • 300 bets – 3 active volcanoes, with multipliers triggered after each respin.

Conclusion

The 3 Coin Volcanoes game promises plenty of fun and big wins. Its wide range of bonuses and unique mechanics will appeal to experienced players. It’s also an ideal choice for those who enjoy the Hold & Win system. However, keep in mind that this slot machine is characterized by high volatility, which can make triggering the bonus round more challenging.

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Herman Brooker Updated: April 12, 2026