Reactoonz from Play’n GO is one of the most inventive cluster-based slots in the provider’s catalogue. Released in 2017, it continues the quirky alien theme introduced in Energoonz (2013), bringing a larger 7×7 grid, chain reactions, and multiple quantum features that keep the gameplay dynamic. The slot blends humor, strategy, and volatility into a single visually charged experience.
Game overview
The table below outlines the main specifications of Reactoonz, showing how it fits the pattern of high-volatility grid games.
| Parameter | Details |
|---|---|
| Provider | Play’n GO |
| Release Year | 2017 |
| Theme | Science Fiction / Aliens |
| Reels / Rows | 7 × 7 grid |
| Paylines | Cluster pays (no fixed lines) |
| RTP | 96.0% |
| Volatility | High |
| Min Bet | €0.20 |
| Max Bet | €100 |
| Max Win | €91,406 (≈ x4,570) |
| Platforms | Desktop, Android, iOS |
| Bonus Features | Cluster Wins, Cascading Reels, Wilds, Quantum Features, Gargantoon Bonus |
Reactoonz uses cascading mechanics instead of paylines. Wins occur when clusters of five or more matching aliens connect horizontally or vertically, triggering chain reactions that can extend payouts significantly within a single spin.
Design and atmosphere
The game is set inside a glowing energy reactor filled with playful extraterrestrial creatures. Each alien has a unique expression and colour palette, ranging from one-eyed mini-creatures to big-eyed pink monsters with comic personalities. On the right side, a power meter and the giant Gargantoon await activation, while the soundtrack reinforces a sense of chaos and motion typical of Play’n GO’s sci-fi titles.
Despite the complexity behind its mechanics, Reactoonz presents a clean layout and responsive animations that make every cascade feel rewarding and energetic.
Gameplay mechanics Reactoonz
There are no paylines in Reactoonz. Instead, the grid awards clusters of at least five identical symbols. Once a cluster forms, the winning icons disappear, and new aliens drop down to fill the gaps. Each chain reaction may produce new wins – a process known as the Avalanche mechanic. This sequence continues until no new combinations appear, creating a natural rhythm of bursts and pauses.
The game includes multiple interconnected mechanics that interact during spins, such as Unstable Symbols, Giantoonz, and Quantum Leaps, all of which affect how wilds and bonuses emerge.
Special features
Reactoonz stands out for its intricate web of bonus features that charge progressively with every win. These mechanics are the heart of the slot’s replay value.
- Unstable Symbols – random icons glow with a pink-blue aura; when they form part of a win, two wilds are added to the grid.
- Giantoonz – when four identical symbols form a 2×2 square, they merge into a single creature, doubling any cluster win they join.
- Electric Wilds – glowing orbs that substitute for all symbols. They appear when Gargantoon intervenes or via unstable combinations.
- Gargantoon Wild – a huge 3×3 wild that splits into smaller forms (2×2 and 1×1) across three successive cascades.
Each winning chain charges the Quantum Meter located beside the reels. After collecting 25 symbols, one of the four Quantum Features activates. Filling all four meters triggers the Gargantoon bonus round.
Quantum features
These randomly triggered bonuses form the core of the game’s high-energy design. Each one has a unique effect on the grid.
- Implosion (Orange) – transforms three to six symbols into wilds and destroys adjacent aliens.
- Alteration (Blue) – changes a random low-value symbol into another alien type.
- Demolition (Red) – removes all one-eyed creatures from the grid.
- Incision (Green) – places a wild in the centre and replaces diagonal lines with identical symbols.
Activating all four functions in one sequence triggers the Gargantoon feature, where the large alien wild enters the grid, creating massive win potential through cascading multipliers and full-grid conversions.
Paytable Reactoonz
The dynamic paytable changes automatically with stake level. The following values represent wins for a one-credit bet.
| Symbol | 5 | 6 | 7 | 8 | 9 | 10–11 | 12–14 | 15+ |
|---|---|---|---|---|---|---|---|---|
| Yellow / Green one-eyed aliens | 0.1 | 0.15 | 0.2 | 0.3 | 0.6 | 0.8 | 1 | 3 |
| Red / Purple aliens | 0.5 | 0.2 | 0.4 | 0.6 | 0.8 | 1 | 3 | 10 |
| Blue alien | 0.5 | 0.7 | 1 | 1.5 | 2 | 3 | 5 | 75 |
| Orange alien | 0.6 | 0.8 | 1 | 2 | 3 | 5 | 10 | 150 |
| Green alien | 0.8 | 1 | 2 | 3 | 4 | 10 | 25 | 300 |
| Pink alien | 1 | 2 | 3 | 5 | 8 | 20 | 50 | 750 |
Unlike traditional paylines, cluster payouts scale exponentially as the group size increases, making large combos and Gargantoon-triggered wins particularly lucrative.
Interface and accessibility
Despite its multi-layered system, Reactoonz maintains Play’n GO’s familiar interface. The control panel allows players to set stake, enable autoplay, or adjust turbo mode for faster cascades. The “i” button opens the paytable and detailed rules. All game statistics – bet, win, and balance – remain visible throughout play.
The slot runs natively on HTML5, ensuring full functionality on desktop and mobile browsers, including Android, iOS, Windows Phone, and BlackBerry devices. Animations scale fluidly to smaller screens without performance loss.
Pros and cons
Reactoonz is both a mechanical experiment and a commercial success, setting the template for numerous “cluster win” titles that followed. Its design rewards pattern recognition and persistence rather than sheer luck.
- Unique 7×7 grid without paylines.
- Chain reactions via Avalanche system.
- Multiple random quantum bonuses.
- Gargantoon feature delivering huge wild clusters.
- High volatility for extended thrill potential.
However, the game’s depth can intimidate those expecting a simple spin-and-win setup.
- Complex mechanics require time to understand.
- Minimum of five symbols needed for any win.
- No free spins or progressive jackpot.
Conclusion
Reactoonz remains one of the most innovative Play’n GO releases. Its 7×7 grid, cascading mechanics, and evolving bonus structure make it both challenging and rewarding. The combination of humour, volatility, and precision keeps the title relevant even years after launch. Whether played casually or strategically, Reactoonz stands as a benchmark in modern slot design.
