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Reactoonz Online Slot Review 2024

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Over the years, Play’n Go has released hundreds of successful casino slot titles, including the Reactoonz slot. Reactoonz is an alien-themed 7-reel slot with many captivating elements that create a unique gameplay experience. In this article, I’ll explore what makes Reactoonz different: its thrilling gameplay, electrifying features, and the secrets to maximising your gaming sessions.

Play Reactoonz Slot for Free

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Where to Play Reactoonz Slot for Real Money

Play’n Go is a popular game studio with broad support in the UK, so you’ll find the Reactoonz slot in most UK casinos. Below, I’ve listed my top recommendations for playing it, vetted for safety and fairness.

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Reactoonz Slot Review

Reactoonz is a modern slot with a simple interface and unique design. My tests revealed that the slot competes with some of the top slot machines online. Additionally, its bonus features add an extra layer of fun to the gameplay experience.

Slot Overview


Play'n Go

Release Date


Game Type

Grid slot




Sci-Fi, Alien

Min Bet


Max Bet


Max Multipliers


Max Win



Reactoonz allows you to place bets from as little as £0.20 to a maximum of £100. This makes it suitable for both high and low rollers. The payout multiplier on Reactoonz reaches as high as 4570x your stake, so the max payout possible is £457,000.

Unlike some other slots, Reactoonz doesn’t feature an adjustable pay table. However, it compensated with numerous bonus features that enhance the overall gameplay experience for players.


The optimisation and compatibility of Reactoonz are top-notch. The slot operates on an HTML5-based structure, so it works perfectly on all mobile browsers (Android & iOS), tablets and computers.

I conducted most of my tests using smartphones, which confirm its great compatibility with mobile devices. But, I also noticed slight differences in performance when testing further on different casino sites. This indicates that your choice of casino can also affect optimisation to an extent.


Reactoonz is available in most UK online casinos, so the game has a high accessibility rating. Since the slot is a product of Play’n Go, it has great support within the UK. I conducted a search for this game in the gaming libraries of numerous top casinos, and it was readily available.

You can enjoy the freedom of choosing from reliable online casinos to play the game.

Mechanics of Reactoonz Slot

Reactoonz operates on a 7×7 grid, which makes it unique, as most online slots feature 5×5 grids. Besides the grid display, the game’s overall mechanics are identical to other slot titles online.

On the gameplay screen, you can select your preferred bet from the bar beneath the grid. This menu area also shows your available balance and the green spin button, which you can use to start your gaming session.

An auto spin feature allows you to enjoy an automatic experience by making preset commands from the menu. In addition, a sci-fi-themed machine is also on the right side of the gameplay grid on the desktop edition and at the bottom of the portrait mobile edition.

This machine reacts to your spins. While playing, you’ll encounter several alien characters with different colours.

How to Play Reactoonz Slot

From my experience, the single-eyed aliens generally offer low payouts, whereas the aliens with two eyes are higher-paying symbols. The highest-paying symbol in the game is the pink alien, and a cosmic-themed symbol represents the wilds.

Reactoonz Slot Theme

Reactoonz features a space theme with aliens and other sci-fi elements, creating an electrifying experience. The gameplay occurs on a dark blue backdrop with alien symbols on the grid. Compared to other flashy slots, there isn’t much that goes on in the slot’s background. It is one of the simple slots produced by Play’n Go.

The game features matching sound effects and background music to complement the theme further. The animation flows smoothly, and both the visuals and sound of the game are excellent, earning it high marks in this regard.

Reactoonz Slot Theme

Reactoonz Pros & Cons

Playing the Reactoonz slot comes with numerous advantages and a few drawbacks. In this section, I’ve highlighted them to provide you with a better understanding of what to expect when playing this slot game.

  • Thumbs-Up Icon Simplicity
  • Thumbs-Up Icon Good multipliers
  • Thumbs-Up Icon Accessibility
  • Thumbs-Down Icon No in-game free spins available

Below are some of the significant advantages of playing the Reactoonz slot game.

Unlike some complex and flashy slots, Reactoonz features a simple interface, making the slot easy to play and suitable for beginners. Additionally, the availability of auto-spin features adds convenience to the gameplay.

The maximum bet multiplier on Reactoonz is 4570x. This makes it possible to earn huge amounts if you land the right combinations.

With the maximum bet of £100, you also stand to earn as high as £457,000 with the right multipliers.

Finally, Reactoonz is a top slot from a reputable game studio, and it’s available in most UK online casinos.

Let’s now review one of the significant downsides you may encounter while playing Reactoonz.

👎 Unlike popular slots with free spin features, Reactoonz does not support in-game free spins.

You can only use the regular bonus features provided or bonus free spins from your host casino.

Reactoonz Bonus Features

In this section, I’ll cover the bonus features available in the Reactoonz slot and explain how they work.

Cascading Reels Feature

One of the standard bonus features in Reactoonz is the cascading reel feature. You activate this feature when you land a cluster of five or more identical symbols aligned vertically or horizontally on the gameplay grid.

Once you activate this feature, it keeps running and swapping the symbols for possible new winnings until no winning combo is available on the reels.

Quantum Leap features

Another bonus feature in Reactoonz is the quantum leap feature. As you achieve wins during gameplay, you progressively increase the five quantum leap charge metres in the game. As the metres climb the scale, this bonus feature unravels loads of mini-features with different functionalities.

Some of these mini-features are the Implosion, the Incision, the Demotion, the Alteration, and the Gargantoon feature. They all have unique functions that can transform random symbols into wild symbols and unlock other rewards from the quantum leap metre.

Giantoonz Feature

The Giantoonz bonus feature is a simple one. You trigger this feature when you land four matching symbols on a mini 2×2 grid on the gameplay screen. It gives you a 2x multiplier, doubling any winning combination you land in the game.

Fluctuation Feature

During every spin, a random low-value symbol represents the fluctuating symbol. Once you land a winning combo with one of these symbols, it triggers the fluctuation feature, which leaves two wild symbols on the gameplay grid.

Though not a high-value bonus feature with a huge payout potential, landing the right combos with this feature can allow you to get high-paying spins.

Instability Feature

When landing non-winning spins on Reactoonz, the Gargantoon sometimes drops between four to eight wild symbols on the gameplay grid. This feature then maximises your chances of earning huge payouts and allows you to improve your combos.

This feature pops up randomly, so no specific line of action is needed to activate it.

Reactoonz Slot RTP & Volatility

The ‘return to player’ or RTP of Reactoonz sits at 96.51%, which is slightly above the industry average. The RTP in slots represents what a player will likely earn back from a slot in the long run. On average, most online slots in the UK have RTP between 90-95%, so Reactoonz falls in the higher end.

⚡ As for the volatility, Reactoonz is one of the best high volatility slots, meaning that the game rarely triggers winning combos during the standard gameplay unless you utilise the bonus features.

During my tests, it took an average of over 30 spins to earn a significant payout on the standard demo reels. However, slots’ outcomes depend on random number generator systems, so it all comes down to a player’s luck.

Tips & Tricks For Playing Reactoonz

Below, I’ve outlined 3 useful tips you need to follow:

  1. Practice with the Reactoonz slot free play
  2. Bet wisely
  3. Adapt your play to the slot volatility

Practice With the Reactoonz Slot Free Play

One of the easiest ways to maximise your sessions in any slot is to practice with the demo edition. The Reactoonz slot demo will allow you to explore all the game’s features and use the bonus features without spending real money. It allows you to familiarise yourself with the game, leading to improved gameplay.

Of course, slots are luck-based, so your skills don’t affect the outcome.

You can access the Reactoonz free slot game from the top of this page, from the official website of Play’n Go or any casino site that offers it.

Bet Wisely

An important piece of advice I always give players is to gamble wisely. Sometimes, the huge potential payouts and captivating gameplay can lure you in and lead to extended gaming sessions.

In these situations, you can consider utilising responsible gambling tools from your host casino. If bonuses are available in your host casino, use them to maximise your playing chances, and remember to ensure they feature moderate bonus requirements.

Overall, the key point here is to bet within your budget and only stake the amounts you can afford to lose.

Adapt Your Play to The Slot Volatility

When you understand how the volatility of a slot works, it’ll allow you to develop the right gaming strategies for your gambling sessions. A low-volatility slot will trigger winning combos more often but with smaller payouts. Whereas high-volatility slots rarely trigger winning combos, but they offer huge payouts when they do.

Reactoonz is a igh-volatility slot, so you have to develop a game plan that matches it. Consider splitting your bets into smaller bits, as running them on large single or double bets would have you draining your money within the twinkle of an eye.

Review Summary

In this Reactoonz slot review, I discovered some significant highlights, including the game’s simplicity, overall accessibility and the availability of numerous bonus features.

Another great feature is the high payout, allowing you to earn over 4,000x your stake. Also, it features many unique functionalities that can captivate any player, including the beautiful visuals and a matching atmosphere that makes it worth playing.


Below, I will answer the most popular questions about the Reactoonz slot machine from my inbox.

Are there other slots like Reactoonz?

Yes. Other alien-themed slots similar to Reactoonz are Reactoonz 2, Energoonz and Gigantoonz by Play’n Go. There are also titles from other studios, like Money from Mars by Ainsworth and Mutant Potatoes by OctoPlay.

Can I play Reactoonz for free?

Yes. You can use the Reactoonz demo slot to play the game for free. One way to access the free game is on Play’n Go’s website or casinos offering the game. However, you should know you cannot win real money while playing for free.

What is the house edge of the Reactoonz slot?

Reactoonz features an RTP of 96.51%, which makes the house edge roughly around 3.49%.

Where is the best place to play Reactoonz slot UK?

There are many top sites where you can play Reactoonz. But some of my top picks are Duelz Casino, All British Casino and Mr Vegas Casino.

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Tolulope Kehinde - Expert Casino Author

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Tolulope Kehinde is online bingo and slots expert at CasinoSherlock. With five years as a writer and researcher in the online gambling, she is a true pioneer in the industry. Tolulope's insights and expertise are invaluable in providing avid casino players with in-depth and up-to-date information on all things related to online slots, bingo games and payment methods.

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