Gigantoonz slot artwork

Free demo & player guide

Gigantoonz

Play’n GO18+ · Demo play only
GigantoonzPlay’n GO · Free demo
Free play
Gigantoonz slot artwork
Free play · opens here

No sign-up · no deposit · full screen available

Free demo available

Free slot demo · player guide

Gigantoonz

The Reactoonz are bigger than ever!

18+ · free play · no account or deposit

Game details checked 2 Oct 2026How we check games

Gigantoonz slot artwork
Game typeGrid Slot
RTP96.25%
VolatilityVERY HIGH
Maximum win4,000×

60-second guide

What matters at a glance

Free play

Play Gigantoonz here

Open the game above to check its pace, controls and features. Free play stays on SlotsCollector.

Look for

Features worth trying

  1. Bonus Game

    Bonus Game

  2. Cascading Wins

    Cascading Wins

  3. Free Spins

    Free Spins

Game overview

What is Gigantoonz?

One of our favourite series, the Reactoonz series just keeps growing! The charger features an animated Gargantoon integrated and applies different features to the Mega symbols for ultimate entertainment throughout gameplay. When forming wins, a Mega Symbol counts as a single symbol but its has a higher cluster value. If a Mega symbol won’t fit, it splits in the value to create single symbols that will fill the empty spaces. Need a little energy boost? On non-winning rounds five to 10 Quantum Wilds may be added randomly to the grid. But Gagantoonz Wilds will only appear when he’s awoken by the Quantumeter. The Quantumeter has four charge levels, when there are no more cascades the next charge feature in line triggers. DISINTERGRATIONS Collect 25 charges to start the energy boost and remove all instances of four randomly selected symbols, METAMORPHOSIS Collect 50 to trigger this stage where randomly selected symbols will be randomly transformed into a different symbol including Mega symbols! RADIATION Another 25 to make 75 charges in total and adds up to four Mega symbols and two to five Quantum Wilds randomly. GARGANTOONZ Finally, 100 charges to awaken Gargantoonz from his slumber! All Mega symbols will be transformed into Mega Gargantoonz, at least three Mega Gargantoonz will appear regardless of what is on the grid. Then a Mega Gargantoonz will split into a 1x1 Gargantoonz which are removed as usual. This is another piece to the Reactoonz puzzle and we’re far from finished...

How it plays

The features that shape the game

The Reactoonz are bigger than ever!

Bonus Game

Bonus Game

Cascading Wins

Cascading Wins

Free Spins

Free Spins

Scatter Symbols

Scatter Symbols

Wild Symbols

Wild Symbols

Before you play

Does Gigantoonz match what you want?

Judge the format and features first. Theme alone tells you very little about how a game feels.

What this game offers

  • Grid Slot format from Play’n GO
  • VERY HIGH volatility
  • Bonus Game
  • Cascading Wins
  • Free Spins

What to check first

  • This page lists RTP at 96.25%; confirm it in the version you open.
  • Casino stake limits and feature settings may differ from the free-play version.
  • Free play shows the mechanics, but it cannot predict a future result.

Quick answers

Gigantoonz FAQ

Clear answers based on the game information and demo status available today.

Can I play Gigantoonz for free?

Yes. Select “Play free demo” to open Gigantoonz on this page without an account or deposit.

What type of game is Gigantoonz?

Gigantoonz is listed as a Grid Slot from Play’n GO. The Reactoonz are bigger than ever!

What is the RTP of Gigantoonz?

The RTP shown for Gigantoonz is 96.25%. A casino may offer a different configuration, so confirm the value in the in-game information screen.

Can I play for real money here?

No. SlotsCollector provides game information and free demos only; it does not accept bets or deposits.

Game facts

Gigantoonz numbers and features

These are the details currently confirmed for this game. Check the in-game information before using real money.

Payouts & risk

RTP
96.25%
Volatility
VERY HIGH
Maximum win
4,000×
Bet range
0.2 – 100

Reels & wins

Reel layout
Grid Slot - 8×8 Grid
Paylines
1

Release & devices

Release date
27 Jan 2022
Platforms
Desktop, Mobile
Theme
Creatures, Sci Fi

Check real-money availability

This game may be available to play for real money at our partner sites. Availability varies by location.

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