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Reactoonz Slot Review

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How to play Reactoonz mobile slot

Reactoonz slot is the follow up to Energoonz game and it more than lives up to it’s predecessor’s fame thanks to Cascading Reels, Bonus Features and up to 4,570x your bet wins.

Energoonz puts Play’n GO on the map with it’s 5×5 grid and colourful aliens, and now 3 years later we get this Reactoonz mobile slot which takes everything we loved about the original but just adds to it.

More reels, more aliens, more wins, and (more importantly) more volatility.

A 7×7 grid where 5 or more symbols creates a win

There are so many features here, that the best thing to do is to read our Reactoonz slot features below if you want to know all the details.

But the basics are these: every time 5 or more symbols touch horizontally or vertically, you get a win. In this sense it’s very similar to many Play’n GO Grid slots.

However, what differentiates this one from the others is the fact that you have a larger than usual alien on the right side of the reels: the Gargantoon and his power meter.

Fill the meter and trigger bonus features

Every win fills the meter to the left. We say every win because this is a cascading reels slot, meaning that on a win, those symbols disappear and more come tumbling down from above.

So even though you don’t get free spin bonus games like in the Golden Ticket slot, it feels like you get a lot of free goes because the wins come quick an easy.

But be careful, this is all a ruse. The wins you get normally, without the meters, are small and very slight.

Reactoonz slot charges up for big wins

This is all about getting chain reaction of wins. Get enough and suddenly you can trigger any of four bonus features giving you extra wilds, changing symbols into higher paying symbols, and give you 2x multipliers on the wins.

We’ve had some wins of over 100x our bet, and that’s without triggering the Gargantoon feature which makes the whole game go a little mad.

Not as mad as in the Viking Runecraft slot game, but good enough.

This video slot is, much like its predecessor, half game, half slot, but wholly fun.

You might like: Check out the latest Reactoonz 2 slot which adds even more excitement and wins.

Game Screenshots

Reactoonz slot stats

Mobile Slot releasedOctober 2017
Slot typeGrid Slot
SoftwarePlay'n GO
Slot reels / paylines7 Reels / All Ways Pay
House edge / RTP3.49% / 96.51%
Slot volatilityHigh
Coins range0.01 - 5.00
Min/Max bet0.20 / 100
Max win457,000
Free spinsNone
Bonus roundsAll Ways Pay, Extra Wilds, Explosions, Cascading Reels, Symbol Replacements
Slot ThemesAliens & Space
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Bonus Features

All Ways Pay and Cascading Reels: Get 5 or more symbols touching each other either vertically or horizontally, and you'll get a win.

The winning symbols will then disappear and more will come tumbling down from above. It's a feature made popular in games like Gonzo's Quest or IGT's Pixies of the Forest.

Quantum Leap Charge Meters: Every win charges the meter to the right, and the features below will trigger after the chain reaction of spins have ended.

You can trigger just one, or all four, much like in the Emoji Planet NetEnt slot, except these are chosen at random:

  • Implosion: This will transform 3 to 6 symbols into wild symbols, but also destroy all adjacent touching symbols.
  • Alteration: Chooses 1 of one-eyed symbol (low paying), and all the matching symbols turn into another symbol (could be high paying). If there is no one-eyed symbols on the grid, the feature will choose any other symbol.
  • Demolition: Destroys all one-eyed (low paying) symbols.
  • Incision: Puts a wild symbol into the centre, and creates two intersecting diagonal lines through the grid. Both lines will then show the same symbol.

The Gargantoon Feature: This feature is triggered if you manage to get enough wins to trigger all four features above - you then also get this one.

Then, magic happens as the Gargantoon first adds a 3x3 wild symbol to the grid in a random position. If no more cascades are possible, it then becomes two 2x2 wild symbols, before finally ending up as nine 1x1 wild symbol.

Random Wild Drop: After any non winning spin, the Gargantoon can drop anything from 4 to 8 extra wilds on the Reactoonz slot screen.

Giantoonz: When 4 matching normal symbols are adjacent to each other in a square shape, they automatically form Giantoonz. Wins are doubled in any winning combinations if one or more Giantoonz are part of it.

Fluctuating Symbol: One symbol is chosen at random before each spin to be the fluctuating spin. If it's part of a winning combination, it leaves two wilds behind to help create further wins.


  • High 96.51% RTP
  • Decent 4,570x stake max win
  • Fun alien theme
  • Lots of bonus feature to trigger


  • No free spins bonus
  • Hard to trigger some bonus features

Reactoonz Review Conclusion

This may not have any free spins, but you won't notice, as the cascading reels make one spin feel like it could last forever.

That's because this Reactoonz slot on mobile keeps the action coming; though beware of false security. This is a high variance slot, much like the Royal Masquerade game, so you'll have to be patient to get those truly heart clenching wins.

But those wins are there; you can get 4,570 times your bet in a single spin, and with a whole chain reaction of spinning wins the total could be much more.

A dangerous game, that can lure you in with fancy graphics and big wins, but should be reserved for those who've been playing slots for a little while.

Try it for yourself at one of our recommended Play'n GO casino sites and see if you can charge that meter to some big wins.

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Review by Lucky Mobile Slots, last updated: June 9, 2022 - Rating 4

Play'n GO Reactoonz Slot Review FAQs

What is the Reactoonz slot RTP?

The theoretical Reactoonz RTP is 96.51% which is above average for many online slots.

What is the Reactoonz max win?

The most you can win on a single spin is 4,570x your total stake. At minimum bet of 0.20 per spin that's 914 in cash and at max bet of 100 per spin that's 457,000 in real cash.

Can I free play Reactoonz slot online?

Find a good Play'n GO casino site and you'll be able to take this slot machine for a spin online or on your mobile device in demo mode for free. If you're in the UK you might have to sign up or login first.

Are there Reacoontz free spins bonuses?

There are no free spins bonus games within the slot itself but find a good casino welcome bonus and you'll be able to use your bonus money to play for free.

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