Reactoonz 2 Slot Review

Expert Rating: 4.5 out of 5
Review by Chris Taylor
Last update 4th May 2022
Review by Chris Taylor
Last update 4th May 2022

The Reactoonz 2 slot is powered by Play ‘n GO and is the long-awaited sequel to the popular 2017 Reactoonz release. Played on a 7×7 grid, this cascading grid slot is packed full of bonus features. Playable from 20p a spin on all devices, it’s all about creating winning clusters which brings Electric Wilds into play. This then charges symbol in the Quantumeter. With 4 Quantumeter levels, Energoon and Gargantoon wilds, as well as 2x multipliers, come into play. We explain everything this slot has to offer in our Reactoonz 2 review.

Reactoonz 2 Max Win
5,083 x bet
Play 'n GO
Type of Slot
Video Slot
Stakes Range
20p to £100
Bonus Features
Yes (4)
Free Spins/Multiplier
Max Win
5,083 x
Med to High

Reactoonz 2 Demo

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Reactoonz 2 Slot RTP, Details & Wager Limits

Reels/Paylines: 5 reels + Cluster

Stakes Range: 20p to £100 per spin

RTP: 96.2%

Max Win: 5,083 x stake per spin

The Reactoonz 2 slot is played on a 7×7 grid. Winning combinations are created by landing 5 or more symbols in clusters, which means they need to be adjacent to one another. The bigger the cluster, the bigger the payout.

Playable from 20p to £100 per spin, you can use an Auto Play function where up to 100 autospins can be selected. You can set it to stop the autospins if your balance increases or decreases as well as when you trigger a bonus feature.

The Reactoonz 2 RTP is 96.2% which is just above the slot average of 96% but the standard average for Play ‘n GO games.

When it comes to variance, it’s 8 out of 10 meaning it’s in the medium to high bracket. The max win is 5,083 x stake per spin.

Theme – head to a playful parallel universe

Theme: Alien

High Value Symbol: Pink Alien

Compatibility: Mobile, Tablet, Desktop

The Reactoonz 2 slot has a space theme and is based on energetic extraterrestrials. Set in a playful parallel universe, the symbols appear within a 7×7 grid. It looks quite similar to the original game from developer Play ‘n GO.

Colourful and bright, symbols are represented by all the original Reactoonz characters found in the Reactoonz slot. You have 4 small Reactoonz and 4 big Reactoonz. The highest paying symbol is the pink Reactoonz character with 15 or more landing in a cluster paying 500 x your total stake.

You also have the Wild Gargantoon character which is the wild symbol. This replaces all symbols mentioned to help form winning combinations. The Reactoonz 2 slot introduces 2 new wilds, the Electric Wild and the Energoon wild, which we’ll explain shortly.

Reactoonz 2 Mobile


Being a Play ‘n GO slot, you can play on all devices including mobiles and tablets. The 7×7 grid format lends itself well to mobile play with the high definition graphics and animations crystal clear on smaller screens.

Reactoonz 2 Bonus Features

The Reactoonz 2 slot comes with 4 bonus features. You have standard cascades but the key is to get winning clusters.

The winning clusters lead to electric wilds which replace other symbols and zap other symbols from the grid. When an electric wild is part of a win, the Quantumeter is charged. With 4 levels, each level reach gives you Energoon wilds which can reach 3×3 in size. If you reach level 4, a 2x multiplier is applied.

Cascading feature

When you get a winning combination (of 5 or more matching symbols landing a cluster), the Cascading feature is triggered. Winning symbols are removed from the grid when new symbols replacing them. This allows for consecutive wins. The cascades continue until no more new wins are created.

You will also notice that Uncharged wilds are created on the grid at the start of a spin. They can remain inactive and act as blockers until charged. If a winning cluster is created next to the Uncharged wilds, they can be charged and transform into electric wilds. It can also occur if 2 charged Electric wilds are on the grid and become active.

Fluctometer feature


The Fluctometer appears in the top right of the grid. It chooses a Lil’ Goon symbol to be the fluctuating symbol on every spin. If fluctuating symbols form a winning cluster, a single electric wild is created randomly on any vacated position.

When that fluctuating symbol is removed from the grid, the Fluctometer is charged. This occurs when the fluctuating symbol is removed in a cluster or is destroyed by electric wilds. Once the meter is full, you will be randomly awarded either 1, 2 or 3 electric wilds which are placed on the grid. This is known as the Fluctometer feature. Electric wilds replace other symbols and also zap any instances of that goon from the grid at the same time.

Quantumeter feature


The Quantumeter is what is used to summon the Energoon and Gargantoon wilds onto the grid. When an electric wild is part of a cluster or zaps any Reactoonz on the grid, it charges the Quantumeter. Every symbol represents 1 charge.

Basically, non-wild symbols removed by an electric wild charge the Quantumeter. With 4 levels of charge, here’s what to expect:

Level 1 55 charges
Level 2 85 charges
Level 3 110 charges
Level 4 (Overcharge) 135 charges

If you reach levels 1 or 2, an Energoonz is activated. The Quantumeter can also be recharged with more symbols which then re-energises the Energoon, until level 3 is reached. This is what levels 1 and 2 offer:

Level 1 Unleashes 4 1×1 Energoon Wilds onto the grid
Level 2 Unleashes a mega 2×2 Energoon Wild onto the grid

If you reach level 3, the Gargantoon comes into play. Once you hit level 3, you can’t recharge the meter but you can overcharge it to get a 2x multiplier on your Gargantoons. Each level plays out consecutively once you reach level 3 or overcharge:

Level 4 Adds a 2x multiplier for all wins with Gargantoon wilds
Level 3 Unleashes a giant 3×3 Gargantoon
Level 2 Unleashes 2 mega 2×2 Gargantoons
Level 1 Unleashes 4 1×1 Gargantoons

Wild Pair Explosion feature


If 2 or more electric wilds remain on the grid after the above happens, the Wild Pair Explosion feature is triggered. Here are the eventualities:

  • If 2 electric wilds are next to each other, they will destroy every symbol on the grid (except other wilds) to give you a cascade. More than 2 electric wilds will see 2 chosen randomly.
  • If no wins happen on the cascade, all symbols are destroyed again. The cascades keep coming until no more adjacent wilds appear.
  • If multiple electric wilds are on the grid and are not adjacent to one another, 2 are chosen randomly and a line is drawn between them. All symbols on that line are then destroyed. This continues until there are less than 2 electric wilds on the grid.

Reactoonz 2 Review Summary – a fun alien adventure

Theme & Symbols

Sounds & Music

Bonus Features

RTP (96.2%)

Max Win (5,083 x)


The Reactoonz 2 slot is all about winning clusters that bring electric wilds into play. This then charges the Quantumeter which has 4 levels. This then gives you Gargantoon wilds which can be up to 3×3 in size. If you reach level 4 (overcharge), a 2x multiplier is applied.

A few spins in demo mode is recommended. You will soon see it’s quite a simple slot game. The bigger wins will come when you reach levels 3 and 4 in the Quantumeter, especially with the 2x multiplier. The Cascading feature can lead to many consecutive spins which can quickly mount up to wins of 3,000 x stake per spin.

To win big, you need plenty of consecutive winning clusters and for the electric wilds to zap symbols that charges the Quantumeter. Reaching the higher levels will bring the Energoon wilds into play which can lead to doubled payouts.

In summary, the Reactoonz 2 slot is an entertaining game that is fast-paced and exciting. A lot depends on what you make of grid slots really. If you do enjoy them, try Big Time Gaming’s Star Clusters Megaclusters slot which also has a space theme but offers much bigger potential payouts.

  • 5,083 x max win
  • Appealing bonus features
  • Great sounds and visuals
  • Takes time to understand

Reactoonz 2 FAQs

What is the Reactoonz 2 RTP?

The Reactoonz 2 RTP is 96.2%. Slightly above the slot average, this number is standard for a Play ‘n GO release. The variance is in the medium to high category.

What is the Reactoonz 2 slot max win?

The maximum win from the Reactoonz 2 slot has been capped at 5,083 x your total stake. Whilst the most you can win is 500 x stake from the highest paying symbol, cascades will lead to plenty of successive spins which can eventually bring in a 2x multiplier into play.

How does the Quantumeter feature work?

The Quantumeter feature sees Energoon and Gargantoon wilds summon to the grid. Wins removed by an electric wild charge the Quantumeter which has 4 levels. This can lead to 1×1 or 2×2 Energoon wilds as well as 1×1, 2×2 and 3×3 Gargantoon wilds. If you reach level 4, a 2x multiplier is applied to wins.

Is there a Reactoonz 2 mobile slot?

Created using HTML5 technology, Reactoonz 2 can be played on mobile, tablet and desktop devices. The 7×7 grid format works very well on smartphone devices.

Is there a Reactoonz 2 demo slot?

Yes, you can try the game for free here at This will help you get to grips with the cluster mechanic and the bonus features.