Reactoonz is an incredibly popular grid slot by Play’nGo that is a fan favourite around the world. Reactoonz is a highly volatile slot that has the potential for huge wins – up to 91,406 coins!

People across the land are in search of the elusive Gargantoon (we like to refer to him as just Garga) because when he’s unleashed, he inevitably brings with him massive wins.

Energetic Extraterrestrials

The goal in Reactoonz is to get clusters of the same symbol to trigger wins and reel modifiers, eventually unleashing Garga. You win a prize for each cluster of 5 or more aliens of the same race, the larger your cluster the greater your profit!

The flux capacitors essentially serve as wild symbols to help you win more. Aliens in winning clusters are instantly teleported away to be replaced by new space invaders from above, giving you multiple chances to win in the same round. Try to make contact with oversized aliens! They can multiply your prize when they become part of a winning cluster.

Pros / Cons
  • Exciting in-game features
  • Base game wins can reach 4,570 times your stake
  • Fun graphics and exciting gameplay keep you engrossed
  • High volatility - Gargantoon can be very hard to trigger
  • No 'typical' bonus round such as Free Spins

Each winning cluster transfers energy to the power-hungry Gargantoon who waits on his base, planning his invasion. When fully charged, Gargantoon grows and makes a Quantum Leap onto the middle of the game grid, where he goes completely wild and releases a chain reaction of up to five fabulous features to shock you with even more prize-winning clusters.


Reactoonz is one of the most popular slots amongst online streamers, you’ll always find at least one person streaming Reactoonz and with the insane win potential that’s on offer it’s easy to see why!

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Reactoonz Slot Review

100% Deposit Match up to £200. Terms apply.

New players only. Min deposit £10. Wager req: 20x. Bonus balance is paid with 10% instalments to account balance. Bonus balance is not playable. Max bet is £20. Account balance is withdrawable at any time. Upon withdrawal, any remaining bonus balance is forfeited. Play responsibly.