Reactoonz
Get ready to blast off into space with the Reactoonz slot game from Play’n Go. This slot is the very definition of game-changing, with the title being a huge hit for Play’n Go and impacting how everybody approached making cluster-pay games moving...
Reviewed by A. Lynch
·
Updated: 2026-04-15
| Provider | Play'n GO |
| RTP | 96.51% (varies) |
| Reels | 7 × 7 |
| Paylines | Cluster Pay |
| Max Win | Up to 4,750x |
| Bet Range | £0.2 – £100 |
| Themes | aliens |
| Released | 2017-10-23 |
| Technology | HTML5 |
| Updated | 2026-04-15 |
- RTP: 96.51% (varies)
- Max Win: Up to 4,750x
- Provider: Play'n GO
- Reels: 7 × 7
- Best Casino: SpinGenie (9.30/10)
Where to Play Reactoonz
Reactoonz RTP and Wagering
The Reactoonz slot game uses a cluster-pay mechanic. For this, it uses a larger than normal 7x7 grid. Winning clusters are formed when players land five or more matching symbols clustered together anywhere on the grid.
A sliding scale under the reels is used to adjust the stake. Players can bet as little as £0.10 and a maximum of £100. The RTP for the slot is 96.51%. However, players should be aware that different variations of the game exist with lower rates. The maximum win in the slot is 4,750x your stake.
Reactoonz Symbols and Audio & Video Design
One of the reasons for Reactoonz's success is that it instantly grabs your attention. The slot’s reels are floating around in space and are populated by quirky little aliens. These are the titular species, and it is hard not to find them incredibly likeable.
The screen is surrounded by all sorts of outer-space gizmos, with the Quantum Charge meter on the left-hand side pivotal to game success.
The soundtrack has a sci-fi feel, with the sounds of space engines and computers beeping as you spin the reels.
The highest paying of the Reactoonz is the cherry-coloured alien with three small horns. This serves up a maximum win of 750x your stake if you can land a cluster of 15 or more.
Gargantuan
Show as wild and substitutes for all symbols
Yellow Alien
15+ = 4.8x bet / 12+ = 1.6x bet / 10+ = 1.28x bet / 9 = 0.96x bet / 8 = 0.48x bet / 7 = 0.32x bet / 6 = 0.24x bet / 5 = 0.16x bet
Dark Green Alien
15+ = 4.8x bet / 12+ = 1.6x bet / 10+ = 1.28x bet / 9 = 0.96x bet / 8 = 0.48x bet / 7 = 0.32x bet / 6 = 0.24x bet / 5 = 0.16x bet
Red Alien
15+ = 16x bet / 12+ = 4.8x bet / 10+ = 1.6x bet / 9 = 1.28x bet / 8 = 0.96x bet / 7 = 0.64x bet / 6 = 0.32x bet / 5 = 0.24x bet
Purple Alien
15+ = 16x bet / 12+ = 4.8x bet / 10+ = 1.6x bet / 9 = 1.28x bet / 8 = 0.96x bet / 7 = 0.64x bet / 6 = 0.32x bet / 5 = 0.24x bet
Blue Alien
15+ = 120x bet / 12+ = 8x bet / 10+ = 4.8x bet / 9 = 3.2x bet / 8 = 2.4x bet / 7 = 1.6x bet / 6 = 1.12x bet / 5 = 0.8x bet
Orange Alien
15+ = 240x bet / 12+ = 16x bet / 10+ = 8x bet / 9 = 4.8x bet / 8 = 3.2x bet / 7 = 1.6x bet / 6 = 1.28x bet / 5 = 0.96x bet
Light Green Alien
15+ = 480x bet / 12+ = 40x bet / 10+ = 16x bet / 9 = 6.4x bet / 8 = 4.8x bet / 7 = 3.2x bet / 6 = 1.6x bet / 5 = 1.2x bet
Pink Alien
15+ = 1200x bet / 12+ = 80x bet / 10+ = 32x bet / 9 = 12.8x bet / 8 = 8x bet / 7 = 4.8x bet / 6 = 3.2x bet / 5 = 1.6x bet
Wild
Appear as part of Fluctuation and Quantum Features
Reactoonz Mobile Features
The zany world of Reactoonz has no problem switching to smaller screens. The game has been developed using HTML5 technology, ensuring it runs smoothly on mobile devices.
Reactoonz Bonus Features
The Reactoonz slot is well-known for its innovative bonus features. Let’s take a look at how they work and how you can trigger them.
Cascading Wins
Like many other cluster-pay slots, Reactoonz uses a cascading wins mechanic. Whenever a winning combination is formed, the symbols are removed from the reels and will be replaced by new ones falling from above. This continues until no more clusters are formed.
Quantum Charge
Every time you land a win in Reactooz, it is added to the Quantum Charge. This will then collect wins from the subsequent cascades and reset when they end. If you collect five wins, then a new feature is added to the queue and can then be triggered. There are five features:
- Implosion: Three to six symbols are turned Wild, and symbols around them are destroyed, triggering a cascade.
- Alteration: One lower-paying symbol is selected, and all instances of it are upgraded.
- Demolition: All lower-paying symbols are removed from the grid, triggering a cascade.
- Incision: A Wild is placed in the centre, and it slices outwards diagonally in both directions. This then turns any symbols it has crossed into matching symbols.
Once the feature has been charged five times, then it will add the Gargantuan feature to the queue.
Gigantoonz Feature
The Gigantoonz symbol can be added on any spin. It is formed when you get four matching symbols adjacent to each other, creating a Gigantoonz symbol. This will then double any wins it is involved in.
Fluctuation
You will see a random symbol glowing across the grid on each spin. You can easily mistake this as a win, but this is not the case. If any of these are used as part of a winning symbol, then it will leave two Wilds on the grid for the following cascades.
Reactoonz Final Thoughts
Reactoonz is one of Play’n Go’s most popular slot games, and after taking it for a spin, it is easy to see why. The slot still looks brilliant, and the gameplay is extremely infectious. While it is not the highest-paying slot out there, there is so much fun to be had with the bonus rounds, especially if you can hit a streak of cascading wins. The range of features and stylish design ensures that this will remain a staple of online casino play for a long time.
Rating: 9