Gargantoonz Slot

Play'n GO - Gargantoonz

You must be 18+ to play this demo.

Full Screen
  1. Bonus $1,000 Spin to Win Virtual Credits Everyday
    Must be 21+ and present in an eligible state. T&Cs apply. Gambling problem? Call 1-800 GAMBLER.

Gargantoonz Slot Review

Play’n GO’s Reactoonz slot was a true hit when it came out. Its generous Cluster Pays system and the fun aliens across the grid made it a hit that’s still popular to this day. It spawned a sequel and a prequel, too, with the studio focusing on the cute aliens that occupy the grid. Gargantoon was the funniest and most rewarding of them all, and this alien species is the focus of the Gargantoonz slot.

It’s another Cluster Pays entry into the long-running franchise with high volatility and an RTP of 96.20%. While the gameplay is familiar, the slot has plenty of surprises on its own. The slot comes with plenty of galactic sci-fi features, including fluctuations, Quantum wilds, and other experiments. Charging and waking up Gargantoon is still the best way to hit the highest wins. While on the subject of wins, you can hit wins up to 7,000x the bet, which is more than the previous installments.

The Gargantoonz slot looks like a pretty great adventure on its own. Read our review below and see if it’s just as good as its predecessors.

Gargantoonz Game Logo
RTP 96.20%
Volatility High
Maximum Win €700,000.00
Bonus Buy Icon Error No
Game Provider Play'n GO

Licensing Authorities and Testing Agencies

Gargantoonz Slot Layout and Design

Play’n GO has opted for a very familiar design with Gargantoonz. It has a 7x7 grid with a Cluster Pays system. It looks eerily similar to the Reactoonz slots, which isn’t a bad thing at all. Visually, the studio always delivers and doesn’t falter here either. The slot’s audio effects are suitable for an alien sci-fi theme.

The design is classic Play’n GO, meaning you shouldn’t have trouble playing the slot at all. All the controls are beneath the reels, so it’s easy to pick a bet and hit the Spin button to start playing.

Gargantoonz Slot on Mobile Phones

Gargantoonz is fully mobile-optimized like the rest of Play’n GO’s lineup. You can give it a go for free and real money on Android and iOS devices. During our Gargantoonz slot review, we tried it on both systems, and it worked like a charm.

Reels 7
Rows 7
Autoplay Option
Autoplay Option Icon Yes
Release Date
Release Date 30/11/2023
Part of a Series
Part of a Series Reactoonz series
Minimum Bet
Minimum Bet €0.10
Maximum Bet
Maximum Bet €100.00

Gargantoonz Slot Gameplay Features

Before we started our alien world adventure, we needed to set a bet. The betting range goes from 10c to $100 per spin, so it’s suitable for all players. Once you set your bet, get ready – it’ll be a bumpy ride.

If you’ve played the previous Reactoonz real money slots, you already know the drill. A cluster of 5 symbols is required for a win, which triggers a cascade. Each pop removes the old winning symbols and fills the grid with new ones, eventually triggering a new cascade. The process will continue as long as you keep landing winning symbols.

  • To make things easier, the slot has added Quantum Wilds to the grid. They come in different designs and can substitute any symbol in a winning combination. At the start of each spin, the slot picks one of the low-paying symbols randomly – if you score a win that involves that particular symbol, 1-2 Quantum wilds are added to the grid.
  • Losing spins can sometimes trigger the discharge feature. It adds 4-8 wilds to random positions, which can greatly improve your payouts.
  • Look to the left – there’s a progress bar named Experiment Charger. All winning clusters contribute to it. Fill it up with 20 symbols, and one of the game’s experiments will be triggered. The experiments include Gamma Ray Burst, which adds 7-9 wilds; Black Holes, which add 4-6 wilds and collect other symbols; and Supernova, which adds 3-5 wilds to the grid, which collects even more symbols to fill the meter.

Gargantoonz Slot Free Spins and Other Bonuses

There’s no free spins round in the Gargantoonz online slot, but it substitutes it with the familiar Gargantoon charge feature. Like in other Reactoonz slots, the Gargantoon sleeps while you fill up his charger. To wake him up and trigger the eponymous feature, you’ll have to finish all three experiments at once.

When that happens, eight 1x1 Gargantoon wilds will be added to the grid. They will then merge into two 2x2 wilds and then a single 3x3 Gargantoon wild. The whole process has 3 stages. On top of the massive wilds, you also get multipliers attached to them, which further boost your wins.

Slot Features

Multipliers Icon Yes
Wild Symbol Icon Yes
Sticky Wilds Icon Yes
Walking Wilds Icon Yes
Random Wilds Icon Yes
Multiplier Wilds Icon Yes
Expanding Wilds Icon Yes
Cascading Reels Icon Yes

Gargantoonz Slot RTP, Maximum Payout, and Volatility

Like most Play’n GO slots, the RTP for this highly volatile slot is set at 96.2%. The maximum projected win in Gargantoonz is 7,000x the bet.

Gargantoonz Slot Verdict

Gargantoonz is a fun slot to play that continues the familiar Play’n GO story. It has added some new experiments to the grid, which make things even more exciting. Wilds and Gargantoon wilds are in the focus, with most of the experiments revolving around them. If you’re a fan of the franchise and the largest character in them all, Gargantoonz is a must-try at our recommended casinos online.

Most Popular Play'n GO Slots

Book of Dead Game Logo
Software Provider Play'n GO Logo
RTP 96.21%
Volatility High
Maximum win €500,000.00
Reactoonz Game Logo
Software Provider Play'n GO Logo
RTP 96.00%
Volatility High
Maximum win €457,000.00
Fire Joker Game Logo
Software Provider Play'n GO Logo
RTP 96.15%
Volatility Medium
Maximum win €80,000.00
Moon Princess Game Logo
Software Provider Play'n GO Logo
RTP 96.00%
Volatility High
Maximum win €500,000.00
Rich Wilde and the Tome of Madness Game Logo
Software Provider Play'n GO Logo
RTP 96.59%
Volatility High
Maximum win €200,000.00
Legacy of Dead Game Logo
Software Provider Play'n GO Logo
RTP 96.58%
Volatility High
Maximum win €500,000.00
Rise of Olympus Game Logo
Software Provider Play'n GO Logo
RTP 96.50%
Volatility High
Maximum win €100,000.00
Hugo Game Logo
Software Provider Play'n GO Logo
RTP 96.40%
Volatility Medium
Maximum win €100,000.00
KISS: Reels of Rock Game Logo
Software Provider Play'n GO Logo
RTP 96.20%
Volatility High
Maximum win €5,000,000.00
Sweet Alchemy 2 Game Logo
Software Provider Play'n GO Logo
RTP 96.20%
Volatility High
Maximum win €1,000,000.00

New Slots Calendar

New slot games are popping up more often than you think. Over the years we’ve built up relationships with the internet’s leading slot game developers, so if a new game is about to drop it’s likely we’ll hear about it first. If you don’t want to be behind the curve, stick with us.

New Games Calendar

Meet Our Slot Tester

Karolis Matulis
Karolis Matulis Slot Tester

Karolis Matulis is an SEO Content Editor at with more than 5 years of experience in the online gambling industry. Karolis has written and edited dozens of slot and casino reviews and has played and tested thousands of online slot games. So if there's a new slot title coming out soon, you better know it – Karolis has already tried it.

This review is based on the writer's personal opinion is an informative comparison site that helps users find the best products and offers. We maintain a free service by receiving advertising fees from the brands we review. Ratings are based on position in the comparison table or specific formulas. We strive to keep information up-to-date, but offers are subject to change. We do not compare or include all brands and offers.


Which studio developed the Gargantoonz online slot?
What’s the Gargantoonz slot RTP?
What’s the minimum/maximum available bet in Gargantoonz?
Is Gargantoonz a Megaways slot?
What do the Quantum wilds do in Gargantoonz?
How do I trigger the Gargantoonz feature?
Is there a free spins round in Gargantoonz?
How do I access the Gargantoonz slot experiments?
Is there a promo code for the Gargantoonz slot?
When was the Gargantoonz slot released?

Ask the experts

Need expert help? Ask a question and one of our in-house experts will get back to you...

Get in touch
Get in touch

Test Your Luck
Not Your Spam Filter

Sign up to receive emails and promotions from Email Signup Coins