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Gigantoonz by Play'n GO

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Gigantoonz Demo

Gigantoonz slot is a slot dominated by giant symbols and big wins. It is a part of the Reactoonz series by Play’n GO that has proven to be very successful.

It features an 8x8 grid with several massive symbols and exciting features. Mega symbols, Quantum Wilds, Gargantoon Wilds, and several other features are there to grant you the Max Win of 4,000x of your bet.

In this Gigantoonz slot review, we will see how exciting this slot can be. Read till the end to understand everything about this casino slot.

Release: 27.01.2022
Volatility Volatility ON Volatility ON Volatility ON Volatility ON Volatility ON
Max Win: X4000

Written by: Julius De Vries | The review was last updated: 11 May 2024 | Fact-check by: Kim Birch

Julius de Vries rigorously assesses casino bonuses and terms at BETO™, guarding against dishonest operators. Julius is a verified gaming expert, committed to honesty and transparency. About Julius De Vries

Ratings by BETO Slots Experts


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Ways to Win

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Video: Gameplay & Big Win

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Slot Machine Features


Bonus Buy



Network Jackpots

Network Jackpots

Pros Pros


OpenMax Win of 4,000x of your bet

OpenPowerful modifiers

OpenCascading reels

OpenGet Quantum Wilds on non-winning spins

OpenMega symbols

Cons Cons


Close RTP can be adjusted

Close High variance

Facts About the Slot

Slots Provider Play'n GO

Slots Volatility Volatility ON Volatility ON Volatility ON Volatility ON Volatility ON

Slots RTP% 94.25

Slots Game type Slots

Slots Jackpot No

Bet Range & Game Layout

Slots Minimum bet 0.20

Slots Maximum bet 100.00

Slots Reels 8

Slots Rows 8

Game Features

Level Up Cluster Pays Symbol Swap Collect Energy Cascading/Avalanche wins Random Wilds RTP range Wild Mega Symbol (3x3)

Mega symbols play an important role and help trigger other features

Mega symbols play an important role and help trigger other features

Welcome to Gigantoonz Slot by Play n Go

Play’n GO has created several successful slots in the Reactoonz series, like Dr Toonz and Energoonz. So it makes sense to continue the series and keep adding more powerful slots to it. The game Gigantoonz is the latest addition to the Reactoonz series, and it gives you a familiar experience with some unique features.

The game area has expanded to an 8x8 grid, and the Mega symbols are a new and exciting addition. The Quantumeter has returned, and it had to return because it has become one of the most important features in this series. Furthermore, the cascading feature is also back to give you big wins.

The Quantumeter will trigger Disintegration, Metamorphosis, Radiation, and Gargantoonz features. Other random Bonus Features are also there to help keep the base slot exciting. We will soon explain all of them in detail.

Waiting to trigger the Gargantoonz feature will be worth it because it almost guarantees a series of big wins. How? Keep reading this review to find out.


Cute Aliens Theme and Vibrant Graphics

Theme and Design

The cute aliens seen in other Reactoonz slots are back to entertain you again. The theme of this slot is very similar to other slots, so the fans of this series will surely love it. The background is somewhere in space with a powerful purple black hole.

On the right side of the reels is the Gargantoon symbol, which will keep sleeping until you fill the Quantumeter. You can view any wins you get on the left side of the reels.


The aliens with 2 eyes are the high-paying symbols. The red, pink, green, orange, and blue aliens with 2 eyes will pay you 50x to 1,250x of your stake for landing 30 or more symbols in a winning combination.

The low-paying symbols are aliens with just one eye that will pay you 5x to 20x of your stake for landing 30 or more symbols in a winning combination.

This slot also has 2 Wilds: the Quantum Wild and the Garagantoon Wild. The Quantum Wild is like a ball of energy, and the Garagantoon Wild is a giant alien with 3 eyes.

Play Gigantoonz slot with bigger reels and better features

Play Gigantoonz slot with bigger reels and better features


How to Play Gigantoonz Slot

Let us explain how you can play this casino game.

  • Click on the green button to spin the reels and get a chance to form winning clusters.
  • The yellow button will allow you to do 10 to 100 spins on autopilot.
  • Your bet value can be adjusted through the plus and minus buttons. It can be set in the range of €0.20 to €100, which is the max bet value.
  • Click on the "i" button to open the paytable and learn about the features.
  • Click on the button with three horizontal lines to open the settings. It has common settings like fast play and spacebar to spin.

This slot has the cluster pays mechanic, so you will get wins by landing 6 or more symbols in a cluster. The matching symbols have to be horizontally or vertically adjacent to each other for forming wins.

Land several easy wins in a row on any random spin

Land several easy wins in a row on any random spin


Terrific Bonus Features

Let us explore the Bonus Features and see how they work.

Cascading Reels Feature

The matching symbols that form a winning cluster will always disappear, and new symbols will drop down to replace them. This is a common feature that helps in landing several wins in a row.

Quantum Wilds

On any spin where you don’t get a win, 5 to 10 Quantum Wilds can appear randomly and help you get a win.

Mega Symbols

The Mega symbols can appear on a spin randomly. The size of this symbol will be between 2x2 to 7x7. The cluster value of the Mega symbol can go as high as 13.

The Mega symbol counts as one for creating wins, but the cluster value of the symbol will apply while calculating payouts. A winning Mega symbol leaves behind a wild symbol after it disappears.

The Mega symbol will fill an empty space with its 1x1 versions (without cluster values) when it can’t drop down.


Each winning symbol is collected in the Quantumeter. The regular symbols add one charge, while the Mega symbols add their cluster values. The Quantumeter has 4 levels which trigger different modifiers.

Following are the levels and the features they trigger.

  • Level 1 (25 charges): Disintegration feature
  • Level 2 (50 charges): Metamorphosis feature
  • Level 3 (75 charges): Radiation feature
  • Level 4 (100 charges): Gargantoonz feature

Now let us explain how the four modifiers work.

  • Disintegration: This feature will remove all instances of 4 symbols chosen at random.
  • Metamorphosis: It will randomly transform all instances of a symbol into a different symbol. This feature also works on the Mega symbols.
  • Radiation: This feature randomly adds 0 to 4 Mega symbols and 2 to 5 Quantum Wilds.
  • Gargantoonz: This feature has 2 stages. First, the Mega symbols will turn into the Mega Garagantoonz symbols. You will get at least 3 Mega Gargantoonz symbols, not depending on the number of Mega symbols. Furthermore, 2 to 4 1x1 Gargantoonz symbols will be added. In stage 2, the Mega Gargantoonz symbols will break down into 1x1 Garagantoonz symbols, which will be removed as a part of a win.
Fill the Quantumeter and trigger several modifiers in the Gigantoonz slot

Fill the Quantumeter and trigger several modifiers in the Gigantoonz slot


RTP, Variance, and Max Win

The Gigantoonz RTP is 96.25%, which is only slightly higher than the average RTP of 96%. The volatility of this slot is high or 10 out of 10. The high variance will give you exciting gameplay with the possibility to win big.

The Max Win is 4,000x of your bet, which is a little lower than what we expected. It is fine, but they should have kept it higher.

Enjoy Mega symbols, 4 modifiers, and cluster wins in the Gigantoonz slot

Enjoy Mega symbols, 4 modifiers, and cluster wins in the Gigantoonz slot


Is Gigantoonz Slot Worth it?

The Reactoonz series is popular and played worldwide in several online casinos. In short, this casino slot does justice to the previous games.

The Gigantoonz symbols and Mega symbols team up to grant you massive wins. The Mega symbols count as a single symbol for creating wins, but they have the advantage of quickly filling up the Quantumeter.

Even though this game doesn’t have free spins, you will enjoy the gameplay. Furthermore, Quantum Wilds may show up on non-winning spins to help you get wins and trigger other features.

The main strength of this slot lies in the coordination between the features that enhance each other. One feature leads to triggering another, and you can end up winning several hundred times your stake easily.

In short, don’t hesitate to give Gigantoonz slot machine a spin.


Gigantoonz Slot FAQs

How high is the Max Win in the Gigantoonz online slot? Arrow Arrow

The Max Win is 4,000x of your stake only. It could have been higher like other slots in this series, but it isn’t low enough to be a dealbreaker.

What is the RTP and variance of the Gigantoonz slot? Arrow Arrow

The RTP of this slot is 96.25%, but it can be adjusted, so please check the RTP before playing. The variance is 10 out of 10, so you will enjoy unpredictable and fun gameplay.

Are there Free Spins in the Gigantoonz slot? Arrow Arrow

No there are no Free Spins but 4 modifiers, Mega symbols, and other features are enough to give you the big wins in this slot. It doesn’t need Free Spins at all.

How does the Quantumeter feature work in the Gigantoonz slot? Arrow Arrow

The Quantumeter is filled with winning symbols and gives you 4 modifiers that remove symbols, transform symbols, add Mega symbols, add Quantum Wilds, and add Mega Garagantoonz symbols.

Is Gigantoonz casino slot a scam? Arrow Arrow

The Gigantoonz slot has been released by Play’n GO, which is one of the most popular slot developers. Their slots are licensed and regulated by all major authorities, including Malta Gaming Authority and UK gambling commission. So you don't have to worry about this slot being a scam.

Is it possible to play Gigantoonz for free? Arrow Arrow

Yes, you can enjoy several modifiers, Mega symbols, cascading reels, and more by playing the Gigantoonz slot demo play for free here at BETO.