Reactoonz

Reactoonz slot overview

Reactoonz is the original Play’n GO slot classic that introduced the little aliens and Gargantoon to the world.

This is one of the most popular online casino slots ever created. The max win is 4,750x your bet per spin.

A fast-paced cluster pays slot, it is one of the iconic games that established game provider Play’n Go as one of the world’s top and leading game suppliers.

Best UK Casinos to play Reactoonz

If you want to play Reactoonz for real money, we have selected some excellent UK online casinos for you. Choose a casino, register an account, deposit funds and start playing.

New customers are eligible for a Cash Spins casino bonus.

Reactoonz UK Free Demo

You can skip all the info and dive straight into the action by playing our Reactoonz demo. This way, you can test the game’s features, theme and volatility before deciding if you want to play for real money.

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Reactoonz RTP

This is where things get very interesting: even though Reactoonz is among the most-played slots, many players are unaware they may be playing a low RTP version.

Play’n Go has released five different Return To Player versions of Reactoonz: 96.51%, 94.51%, 91.49%, 87.50%, and 84.51%.

There is a 12% difference between the highest and lowest RTP levels.

Why the RTP is so important when playing Reactoonz

The best way to demonstrate the importance of playing Reactoonz with the highest possible Return to Player is to run calculations.

Based on a starting balance of £100 and a stake of £1 per spin, we can determine per RTP configuration how many spins it will theoretically take (excluding variance) before you run out of funds. 

How many spins does it take before your balance goes below £1?

As you can see, the difference between the different payout versions is quite significant.

For example, when playing the highest 96.51% RTP version, you get over 1,000 more spins than when playing the lower 94.51% RTP version.

Conclusion: choose your online casino wisely. 

This is when CasinoWizard comes to the rescue and guides you toward the Best UK Slots Sites that offer their players the highest RTP version of Reactoonz available in the United Kingdom.

Why give the casinos an even higher edge than they already have?

If you’re a new player at the casino, you can start playing Reactoonz with an increased balance, as you can also use the welcome bonus on offer.

Just remember to check the bonus terms and conditions and bonus wagering requirements.

Gameplay and features

At first glance, Reactoonz may seem a bit messy and confusing, but it’s actually quite straightforward when you get the hang of it.

The primary purpose of this 7×7 cluster pays game is to go on an extended win run where you eventually fill all five bars/meters and then activate the Gargantoon character, which is a wild symbol that comes in three different forms.

Your betting choices start at 20p and go up to the maximum allowable bets in the UK: £2 (aged 18-24) and £5 (aged 25+) per spin.

Reactoonz features explained:

Cluster Pays: Wins happen when five or more symbols are connected in a cluster. These symbols are then removed, and new characters take their place. This keeps recurring until there are no more wins.

Quantum Leap: Five meters/bars that need to be filled. After each separate meter/bar is topped up, one of four features that help you achieve more wins is randomly activated. Once all five bars are filled, the slot’s main feature, Gargantoon, is activated.

Gargantoon: The three-eyed alien will be placed somewhere randomly on the grid as a 3×3 wild symbol, after that as a 2×2 wild, and lastly as nine 1×1 wild symbols.

Random Wilds: On top of this, Gargantoon can randomly, on any non-winning spin anytime during the game, drop 4 to 8 wild symbols on the grid to help you achieve wins.

What is the max win on the Reactoonz slot?

As Reactoonz is one of the most-played slots, many videos of big wins of several thousand x stakes can be found on YouTube. However, the game’s max win is set to 4,750x your bet per spin.

You need to be extremely lucky to achieve the biggest and even the max wins. So, one of those extended win runs is required to fill up all the Quantum Leap five bars.

This is followed by Gargantoon, the mega wild, which is hopefully placed in favourable positions with high-value symbols. Then, you can scoop up those massive wins.

Sometimes, you manage to activate Gargantoon, but the result can be very disappointing after all the waiting. So don’t expect big wins each time the 5 bars are filled.

CasinoWizard’s verdict: Reactoonz is one of the classics that defined the shape of online slots (10 out of 10)

During one of Play’n Go’s brainstorming sessions and later when Reactoonz was on the drawing board, they probably could never have imagined how these colourful aliens would become one of the most played online slots ever created.

Many players worldwide still consider Reactoonz one of their top slots. Therefore, you can often find this slot in most casinos’ top lists and lobbies in premium positions. However, since the game has aged, it is no longer as popular among casino streamers on Twitch and YouTube.

The Reactoonz slot is fast-paced and feels like something is happening all the time, but once you start and get the hang of it, you want to keep going until all those 5 bars are filled, and the Gargantoon character is activated, as that’s where the big wins could be waiting.

Reactoonz is one of CasinoWizard’s all-time favourites and one of the games that changed the way we play and enjoy online slots forever.

There are more versions, but none of them beat the original

Play’n GO hasn’t been shy about trying to ride on the success of this original Reactoonz version, as they have released a sequel and a few follow-ups in recent years.

These include Reactoonz 2, which was a bit of a disappointment as everyone’s expectations were sky-high.

Gigantoonz and Gargantoonz are decent but don’t raise any eyebrows.

However, Dr Toonz differentiates itself from the others by offering players a max win potential of 22,000x the bet, which is three or four times higher than the other games in this series.

Find high-RTP slots

If you are tired of playing online slots with subpar payout percentages, use the search bar below to find your favourite high-RTP slots.