Reactoonz Slot Review

Expert Rating: 4.5 out of 5
Review by Chris Taylor
Last update 3rd September 2021
Review by Chris Taylor
Last update 3rd September 2021

The Reactoonz slot is from Play‘n GO. Playable on a 7×7 grid, this alien-themed title uses a cascading game engine where you can win again and again from each spin. With each win, you charge up the meters to randomly trigger 1 of 5 Quantum features which give you wild symbol transformations, low-value symbol transformations, low-value symbol destructions, intersecting wilds Gargantoon wilds. There are also random wilds, 2x wins on 4 matching symbols appearing in a 2×2 shape and fluctuating symbols that give you wilds. Highly volatile, you can win up to 4,570 times your stake on every cascade for a truly electrifying experience

Reactoonz Max Win
4,570 x bet
Play'n GO
Type of Slot
Video Slot
Stakes Range
20p to £200
Bonus Features
Yes (9)
Free Spins/Multiplier
Max Win
4,570 x

Reactoonz Demo

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Reactoonz Slot RTP, Details & Wager Limits

Reels/Paylines: 6 reels + Cluster

Stakes Range: 20p to £200 per spin

RTP: 96.51%

Max Win: 4,570 x stake per spin

The Reactoonz slot is played on a 7×7 grid with a Cluster Pays engine. A winning combination is formed by getting 5 or more matching symbols as long as they touching, either horizontally and/or vertically.

You can play Reactoonz from 20p to £100 per spin and your aim is to round up clusters of energetic extra-terrestrials.

It comes with an Auto Play function where you can choose between 10 and 100 spins. You can stop the Auto Play on any win, if a single win exceeds an amount or if your balance increases or decreases by your determined number. It’s quite easy to use this if required.

The Reactoonz RTP is 96.51% and it’s a high variance slot, 10/10 according to Play‘n GO. In terms of the max win, this can reach an impressive 4,570 x your stake on every spin or cascade.

Theme – Audio & Design features – round up energetic extraterrestrials

Theme: Alien

High Value Symbol: Pink Alien

Compatibility: Mobile, Tablet, Desktop


Visually, the Reactoonz slot takes you to a parallel universe and has a cute, alien theme. With cartoon style graphics, it has a plain, dark blue background. You will see highly animated aliens drop from the heavens to fill the 7×7 grid.

Winning alien symbols sees the winning clusters instantly teleported away to be replaced with new space invaders. The soundtrack has a synthetic feel.

Symbols on the reels include 4 lower-paying aliens, 4 higher-paying aliens and a vortex wild. The highest value symbol is the pink alien that gives you 750 x your stake for 5 across a payline.

The vortex wild simply replaces all symbols to help form winning combinations.

reactoonz-slot-yellow-alien-symbolYellow Alien 5, 6, 7, 8, 9, 10+, 12+ or 15+ = 0.16, 0.24, 0.32, 0.48, 0.96, 1.28, 1.6, 4.8 x stake
reactoonz-slot-green-alien-symbolGreen Alien 5, 6, 7, 8, 9, 10+, 12+ or 15+ = 0.16, 0.24, 0.32, 0.48, 0.96, 1.28, 1.6, 4.8 x stake
reactoonz-slot-red-alien-symbolRed Alien 5, 6, 7, 8, 9, 10+, 12+ or 15+ = 0.24, 0.32, 0.64, 0.96, 1.28, 1.6, 4.8, 16 x stake
reactoonz-slot-purple-alien-symbolPurple Alien 5, 6, 7, 8, 9, 10+, 12+ or 15+ = 0.24, 0.32, 0.64, 0.96, 1.28, 1.6, 4.8, 16 x stake
reactoonz-slot-blue-alien-symbolBlue Alien 5, 6, 7, 8, 9, 10+, 12+ or 15+ = 0.8, 1.12, 1.6, 2.4, 3.2, 4.8, 8, 120 x stake
reactoonz-slot-orange-alien-symbolOrange Alien 5, 6, 7, 8, 9, 10+, 12+ or 15+ = 0.96, 1.28, 1.6, 3.2, 4.8, 8, 16 or 240 x stake
reactoonz-slot-bright-green-alien-symbolBright Green Alien 5, 6, 7, 8, 9, 10+, 12+ or 15+ = 1.28, 1.6, 3.2, 4.8, 6.4, 16, 40 or 480 x stake
reactoonz-slot-pink-alien-symbolPink Alien 5, 6, 7, 8, 9, 10+, 12+ or 15+ = 1.6, 3.2, 4.8, 8, 12.8, 32, 80 or 1,200 x stake
reactoonz-slot-special-wild-symbolGargantoon Appears as wild and substitutes for all symbols
reactoonz-slot-wild-symbolWild Replaces all symbols

Reactoonz Mobile


You can play Reactoonz on desktop, mobile and tablet devices as Play ‘n GO has created it using HTML5 technology. The 7×7 grid works well, particularly for smartphone devices.

Reactoonz Bonus Features

In Reactoonz, the cascading reels engine is central to the action which allows you the win again and again from each spin. Each win charges the Quantum Leap meters which leads to 5 more bonus features. There’s also 2 other features which can occur in the base game. In total, there are 9 bonus features.

Cascading Reels feature

Reactoonz uses a Cascading Reels feature with symbols dropping down into the 7×7 grid. You can form winning combos when you get 5 or more of the same symbol connected in a cluster (either horizontally or vertically).

When you get a win, the contributing symbols are removed with new symbols dropping to fill up the empty spaces in the grid. The Cascades continue until you no longer get a win but you can win time and time again from every spin.

Quantum Leap features


When you do get a win, you will increase the 5 Quantum Leap charge meters 1 by 1. When a meter is charged, 1 of the quantum features is added to the queue randomly. Here’s a look at what the features offer:

  • Implosion feature: 3 to 6 symbols are transformed into wilds with adjacent symbols also being destroyed.
  • Alteration feature: 1 random low-value symbol is chosen with all instances of that symbol transforming into another symbol. If there’s no low value symbol on the grid, a high value alien will be chosen.
  • Demotion feature: all instances of low value symbols are destroyed and removed from the grid.
  • Incision feature: a wild is cut into the centre. This then creates 2 intersecting diagonal lines through the grid. This will then display the same randomly chosen symbol.

When all 5 charge meters are charged fully, the Gargantoon feature is added to the queue. Here, the Gargantoon adds a 3×3 wild randomly on the grid. With each cascade, the Gargantoon divides to become two 2×2 wilds. With the next cascade, it divides again into nine (9) 1×1 wilds.

If you don’t get a win here, 1 randomly triggered quantum feature is triggered. During the features, you can charge the charge meters which gives you the opportunity for more quantum features. The charge meters only reset if no more winning combos are formed.

Instability feature

The Gargantoon can randomly drop 4 to 8 wild symbols onto the grid if you have a non-winning spin. This is known as the Instability feature.

Giantoonz feature

Reactoonz also benefits from a Giantoonz feature. This is played when 4 matching symbols adjacent to each other in square shape (2×2) appear. This will form Giantoonz, which means wins are doubled (i.e. 2x multiplier) in any winning combination.

Fluctuation feature

Finally, there’s a Fluctuation feature. 1 random low-value symbol is marked as the fluctuating symbol on each spin. If it’s part of a winning combination, it will leave 2 wilds behind on the grid.

Reactoonz Review Summary – electrifying experience

Theme & Symbols

Sounds & Music

Bonus Features

RTP (96.51%)

Max Win (4,570 x)


The Reactoonz slot may sound complicated but it’s rather simple once you get playing. It is fast-paced, fun and also very high variance as you win up to 4,570 times your stake on every cascade/spin.

The best chance of winning big is to get the high-value pink alien prominently on the reels alongside wilds with the Giantoonz feature which applies a 2x multiplier to your outcome.

I really like Reactoonz. It’s not traditional in the slightest which is a good thing but offers lots of action and the potential for out of this world wins if your luck is in. You should try the Reactoonz 2 slot which offers slightly bigger max wins (5,083 x stake).

  • 4,750 x max win
  • Plenty of bonus features
  • Above average RTP
  • No free spins

Reactoonz Casinos

Being 1 of the most popular slots from developer Play ‘n GO, you can always find a Reactoonz casino in the UK. Available at most casino and slot sites, you’ll also find other titles like Book of Dead and Moon Princess.

Reactoonz FAQs

What is the Reactoonz RTP?

The Reactoonz slot RTP is 96.51% which is pretty high for a slot game. The wins are distributed evenly in the game which the bigger wins coming from the various bonus features you can activate.

What is the Reactoonz max win?

The most you can win from a Reactoonz spin/cascade is 4,570 x your total stake. Being a high variance slot, most wins will be of a smaller nature so you need to be patient and lucky.

How do the Quantum Leap features work?

Wins increase the charge meters with a full meter add a Quantum Leap feature to the queue. They transform symbols into wilds, transform a low-value symbol, destroy a low-value symbol and add a random symbol to the grid. Charging all 5 meters brings the Gargantoon feature into play where it divides into more wilds.

Is there a Reactoonz demo slot?

Yes. The Reactoonz free version is available here at This allows you to sample the gameplay and all bonus features. You can play on desktop, mobile and tablet devices as desired.