Gigantoonz slots from play-n-go

RTP: 96.25%

Learn everything about Gigantoonz – features, gameplay and bonus details.

Prepare for a close encounter of the colossal kind in Gigantoonz by Play’n GO. The third installment in the legendary ‘Toonz’ series brings the cute and chaotic aliens back to an even bigger 8×8 grid. This highly volatile casino game is all about creating massive clusters to charge the Quantumeter, which can unleash gargantuan mega symbols and the mighty Gargantoon itself for truly out-of-this-world wins.

Provider Play’n GO
Release Date 2022
RTP 96.25%
Volatility High
Max Win 4,000x
Theme Alien / Sci-Fi
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Feature Value
Reels 8
Rows 8
Paylines Cluster Pays
Min Bet $0.20
Max Bet $100
Max Win 4,000x
Jackpot No
RTP 96.25%
Volatility High
Hit Frequency N/A

Gigantoonz takes place in the same vibrant quantum realm as its predecessors. The graphics have been polished, and the larger grid makes the game feel even more epic. The aliens are as cute and expressive as ever. The key visual highlight is the new mega symbols, which can land in sizes up to 7×7. Animations are electric and constant, fitting the game’s chaotic nature. The soundtrack is an updated version of the quirky electronic tune that fans love.

  • Regular Symbols: There are ten different one-eyed and two-eyed alien symbols. The red two-eyed alien is the most valuable. These can land as regular 1×1 symbols or as mega symbols (2×2 up to 7×7).
  • Special Symbols:
    • Wild Symbol (Quantum Wild): This is a swirling vortex that substitutes for other symbols. They are not created by wins but are added by the game’s features.

To start the reaction, set your bet from $0.20 to $100. Wins are formed by getting a cluster of 6 or more matching symbols. Winning symbols are removed, and new ones cascade down. The game is extremely complex, so the free slot machine demo is essential. This mobile slot is a visual extravaganza and plays perfectly on all devices.

Mega Symbols

Large alien symbols can land on any cascade. They have a random cluster value up to 13. When they form a win, they leave a 1×1 wild behind for each symbol in the cluster.

Quantumeter

Every winning symbol charges the Quantumeter. It has four levels that trigger special features when cascades end:

  • Disintegration (25 charges): Removes all instances of four random symbols.
  • Metamorphosis (50 charges): Transforms all instances of one symbol into another.
  • Radiation (75 charges): Adds 1 to 4 mega symbols and 2 to 5 Quantum Wilds.
  • Gargantoonz (100 charges): The main event. First, all mega symbols turn into mega Gargantoon Wilds. Then, between two and four 1×1 Gargantoon wilds appear. Finally, the mega Gargantoon splits into 1×1 Gargantoon wilds.

RTP: The RTP of 96.25% is very good, sitting above the industry average and offering fair value.

Volatility: This is a very high volatility game (rated 10/10 by the provider). The gameplay is a frantic chase to fill the Quantumeter. It’s a long and challenging process, but finally unleashing the Gargantoonz feature can result in an absolutely colossal chain reaction of wins.


Gigantoonz is a fantastic, if brutally difficult, addition to the Reactoonz saga. It takes the core concepts of the original and cranks everything up, especially the volatility. The mega symbols are a great addition, and the new Quantumeter features are exciting. It’s a game designed for hardcore grid slot enthusiasts who have the patience and bankroll to chase that one, screen-filling, epic win.

Pros Cons
✅ Exciting mega symbols and Quantumeter features. ❌ Extremely high volatility can be very frustrating.
✅ A great sequel for fans of the series. ❌ Max win of 4,000x feels low for this level of volatility.
✅ Deep and complex gameplay.

Suitable for: Experienced grid slot players and fans of extreme volatility.

Prepare for a colossal encounter! Play Gigantoonz now for a truly massive grid slot experience!


What is the RTP of Gigantoonz?

The RTP for Gigantoonz is 96.25%.

Can I play Gigantoonz for free?

Yes, given its complexity, we strongly recommend playing the free demo on our site first.

Does Gigantoonz have a free spins feature?

No, like its predecessors, it doesn’t have a traditional free spins round. The main bonus is triggering the features from the Quantumeter.

What is the maximum win in Gigantoonz?

The maximum win is 4,000 times your total bet.

Is Gigantoonz mobile-friendly?

Yes, Gigantoonz is perfectly optimized for a massive and chaotic experience on all mobile devices.


  • Reactoonz & Reactoonz 2: The iconic predecessors in the Play’n GO series.
  • Dr. Toonz: Another slot in the same universe, but with a more traditional reel setup.
  • Jammin’ Jars 2: A Push Gaming grid slot with a similar chaotic feel and a giant wild “Giga Jar” feature.
  • Wild Frames: A Play’n GO grid slot with a focus on charging a meter to unleash a powerful final feature.
  • The Shadow Order: A Push Gaming grid slot for players who enjoy deep, complex mechanics and charging meters.

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