Written by Leah Formosa

Updated on November 10, 2023


Reactoonz Slot Review 2024

Developed by Play’n GO, Reactoonz slot is a quirky casino game with a spaceship theme and all the extra-terrestrials which inhabit it. Enjoying a Cluster Pays game mechanic, this casino game is fully loaded when it comes to special features, including Instability symbols, giant Gargantoon symbols, a Quantum Leap feature with four separate outcomes, even larger Giantoonz, and so much more. Interested in knowing all there is to know about Reactoonz online slot? Well, that’s what we’re here to find out.

Very Good
By PlatinPlay

Reactoonz Overview

general detailsGeneral Details

Slot Name Reactoonz
Launched 10/2017
Provider Play'n GO IconPlay’n GO

game details Game Details

RTP 96.51% Paylines
Volatility High Min Bet £0.20
No. of Reels 7 Max Bet £100

Reactoonz Slot RTP, Volatility and More

Reactoonz is one of the most popular online slot games in the UK. In this slot game, we’re looking at a highly volatile slot, which means that Reactoonz slot may be more suited to more experienced players. Having said so, the Reactoonz RTP of 96.51% is interesting when compared to other similar slots of this kind. 

In terms of structure, we’re looking at a 7×7 grid that makes use of a Cluster Pays game mechanic to award any potential wins. This implies that rather than relying on paylines, any cluster made up of five or more matching symbols will constitute a win in this Reactoonz game. 

Reactoonz Theme – All About Outer Space 

This Reactoonz slot has been designed to look as though the reels are suspended in some sort of quantum machine, with a large three-eyed Gargantoon catching quick bouts of sleep whenever you leave the reels unattended to your right. The background sound effects contribute to this extra-terrestial experience, with various electronic sounds as well as intelligible blabber that appears to come from some of the colourful creatures themselves. 

In terms of design, Play’n GO have done a sterling job in this particular slot, with several features literally setting the grid ablaze and enhancing the interactivity of it all whenever you play Reactoonz online. If Play’n GO casino slots are your thing, you might be also interested in trying out other top titles such as Legacy of Dead, Book of Dead, and Legacy of Egypt

Reactoonz Bonus Features 

Well, well, where to begin? Reactoonz slot is literally brimming with special features, starting off with the Instability feature that’s triggered after any non-winning spin. Here, the Gargantoon is able to drop up to four Wild symbols onto the grid, which are represented by swirling balls of plasma. 

Hitting a win will also contribute to your Quantum Queue which is displayed to your left, accumulating with each consecutive win. Once the queue is filled, then the 3×3 sized creature known as the Gargantoon will appear as a Wild, substituting for all other symbols. In this case, your Gargantoon will split up and move around with each Cascade, changing from a 3×3 symbol, into two 2×2 Wild symbols, all the way to nine individual Wilds. New symbols will also Cascade down to fill any vacant spots before the Gargantoon makes his next move. 

Reactoonz slot also includes a Quantum Leap feature that charges up whenever you hit a win. Accumulate 25 symbols in this meter and you’ll be awarded one of the four Quantum features at random, with up to four features potentially queued up during this time. When no more wins are possible, your Quantum Feature Queue is triggered onto the reels as follows: 


This is represented by an Orange Orb and will transform anywhere between three to six symbols into Wilds while destroying all adjacent symbols. 


This is the Red Orb and will destroy all one-eyed symbols along with all matching symbols. 


This is the Blue Orb and will cut a Wild symbol down the centre, creating two intersecting diagonal lines across your grid. In this case, both lines will display matching symbols at random.  


Finally, we’ve got the Green Orb that picks out a one-eyed symbol at random and turns it into another. 

When you have four matching regular symbols adjacent to each other in a square shape, the grid will automatically create a Giantoonz, with all wins doubled should this larger symbol form part of a win. Apart from that, you’ve also got one regular symbol that’s marked as a Fluctuating Symbol at random at the beginning of each spin, and marked by a swirling pink and blue glow. Should any of these Marked Symbols form part of a win, then they’ll leave two Wilds behind. 

T&C's apply Sahara Riches Cash Collect” at 10p per spin and 100% Deposit Bonus up to £25 on first deposit (payment method and play restrictions apply). Min. deposit £10. 30x wagering for Bonus Spins and Deposit Bonus (game weighting applies). Max. £5/spin or £0.50/line. 30 days expiry. Please gamble responsibly • BeGambleAware.org • T&Cs apply
T&C's apply 18+. New Players Only. Spins are given as follows: 50 Spins upon a first deposit of minimum £10. Spins may only be used in specific games. The game allowed: Book of Dead. Wagering Requirement: 35x. Spins expire after 24 hours. Promotion available for 72 hours. Maximum winnings from spins: £100. Terms and Conditions apply.
T&C's apply 18+. First deposit only. 80 Free Spins on Book of Dead slot. Free Spin valued at £0.10. OJO’s Rewards and Game Play policy applies.

Reactoonz Slot Symbols 

Reactoonz Screenshot 1

Plasma Wild 

This symbol could potentially appear anywhere on the grid as a reaction to some of the several bonus features, and will substitute for all other symbols should there be the chance to create a winning cluster. 


A large 3×3 three-eyed creature that also acts Wild and replaces all other symbols if there’s the chance of hitting a win. Gargatoonz will move and divide twice as indicated above before shifting off the reels. 


2×2 larger symbols that are created whenever four matching symbols land in a square-shaped formation on the reels. Any wins are doubled whenever a Giantoonz is involved. 

Pink Two-Eyed Creature 

Kicking off the paytable in Reactoonz slot is this pink two-eyed creature that’s your highest paying symbol round hre. Land five clustered symbols for a win that’s 1x your total bet, 2x for six, 3x for seven, 8x for nine, 20x for clusters made of ten symbols and above, 50x for 12_ and 750x your total bet for 15 symbols or more. 

Green Two-Eyed Creature 

Next, we’ve got this Green guy looking generally chill. Land five for a 0.8x win, six for 1x, seven for 2x, eight for 3x, nine for 4x, 10+ for 10x, 12_ for a 25x win, and 15 symbols or more for a win that’s 300 times your total bet. 

Orange Two-Eyed Creature 

Next we’ve got the Orange creature with three horns on her head. Land a cluster of five for a win that’s 0.6x your total bet, six for 0.8x, seven for 1x, eight for 2x, nine for 3x, over ten symbols for a 5x win, 12+ for 10x, and 15+ for 150x. 

Energy Ball 

Last of the high paying symbols as you play Reactoonz online is the Energy Ball that’s worth wins equivalent to 0.5x your total bet for five symbols, 0.7x for six symbols, 1x for seven, 1.5x for eight, 2x, for nine, 3x for ten or eleven symbols, 5x for 12+ symbols, and 75x your total bet for 15 symbols or more. 

Purple One-Eyed Creature 

On the lower end of the paytable we’ve got this smaller Purple guy that’s worth wins equivalent to 0.15x, 0.2x, 0.4x, 0.6x, 0.8x, 1x, 3x, and 10x your total bet for combinations of five, six, seven, eight, nine, 10+, 12+ and 15+ symbols respectively. 

Red One-Eyed Creature 

Just like the Purple One-Eyed Creature before it, this Red dude is ready to part with potential wins equivalent to 0.15x, 0.2x, 0.4x, 0.6x, 0.8x, 1x, 3x, and 10x your total bet for combinations of five, six, seven, eight, nine, 10+, 12+ and 15+ symbols respectively in Reactoonz online slot. 

Green One-Eyed Creature 

Next up we’ve got this little Green creature that’s worth a 0.1x win for five symbols, 0.15x for six, 0.2x for seven symbols, 0.3x for eight, 0.6x for nine, 0.8x for 10+ symbols, 1x for 12+ and 3x for clusters made up of over 15 symbols. 

Yellow One-Eyed Creature 

And finally, we’ve got the Yellow small creature that’s also worth a 0.1x win for five symbols, 0.15x for six, 0.2x for seven symbols, 0.3x for eight, 0.6x for nine, 0.8x for 10+ symbols, 1x for 12+ and 3x for clusters made up of over 15 symbols like the small Green creature before it. 

Reactoonz Screenshot 2

Top Reasons for Playing Reactoonz Slot 

If you like a slot that’s bursting with special features, then Reactoonz might be an interesting option to check out next time you swing by your preferred UK online casino. If you’ve particularly enjoyed the theme and game features in this casino slot, you’re also able to look up Reactoonz 2 which is this game’s popular sequel. 

Other Exciting Slots Like Reactoonz