Slot guide
Reactoonz slot review: cluster pays, the charge meter and RTP
Play'n GO's 2017 cluster-pays slot on a 7x7 grid, where a charge meter unlocks Quantum Leap and further features.
Reactoonz is a Play'n GO cluster-pays slot on a seven-by-seven grid, released on 23 October 2017. Wins come from groups of five or more matching symbols, cascades follow every win, and a charge meter unlocks extra features. The Reactoonz slot has high volatility and a top win of 4,570x the stake. Its RTP depends on the build: one database lists 96.51%, two others 96.00%, and Play'n GO supplies several versions.
Reactoonz: spec sheet
From the provider's published game sheet.
- Provider
- Play'n GO
- RTP
- 96.51%
- Volatility
- High
- Max win
- 4,570x stake
- Reels
- 7
- Rows
- 7
- Ways
- Cluster pays (5+ matching symbols)
- Released
- 23 October 2017
Features
- 7x7 cluster-pays grid with cascading wins
- Wilds and oversized aliens
- Gargantoon charge meter unlocks Quantum Leap and up to five features
RTP can be set lower by some casinos; the game's own help screen shows the figure that applies. 18+ only.
Cluster wins and cascades
There are no paylines. When five or more identical symbols connect on the grid, they pay and disappear, and new symbols fall in, so a single spin can produce a chain of wins. Wilds and oversized symbols can join clusters and make larger groups possible.
The Gargantoon meter and Quantum Leap
The Gargantoon charge meter fills as winning symbols are removed. As it charges, it unlocks Quantum Leap and further features, up to five in all. These features are where the larger wins sit, which is why results swing more than the steady cascades suggest.
Reactoonz RTP: which build is running?
Because published figures range from 96.00% to 96.51% and Play'n GO supplies several builds, the only reliable number is the one in the game information at your casino. Half a percentage point barely shows in one session but adds up over many spins; RTP explained sets out why. Online slot stakes at GB-licensed casinos are capped at £5, or £2 if you are 18 to 24.
Reactoonz 2 and playing on mobile
Reactoonz 2 is the sequel and a separate game with its own grid, features and figures; this review covers the 2017 original only. If you play on a phone, the same build rules apply, so check the game information there too. The mobile casinos page covers apps and mobile sites at licensed operators.
Reactoonz free play in the UK
Searches for Reactoonz free play are frequent, but GB rules require age and identity verification before any game, including demo versions, so there is no demo on this site. Play'n GO shows the game on its own site, and licensed casinos may open demo mode once you are verified. Several licensed casinos list Play'n GO among their providers; they are shown with this review.
18+ only. The responsible gambling page lists support services and the limits licensed sites provide.
UK-licensed casinos, ranked by our score
Order = score out of 10. Every operator holds a Gambling Commission licence.
| # | Casino | Score | Welcome offer and significant terms | Payments | Links |
|---|---|---|---|---|---|
| Place 1 |  Magical VegasRank Interactive (Gibraltar) Limited | Score: 8.1 out of 10, very good | 100 bonus spins after a £10 deposit and £10 stake Significant terms Min deposit £10 and £10 stake; Paysafecard excluded; 10x wagering; max win £200; spins on The Goonies Quest for Treasure Jackpot King |
| Visit Magical Vegas (opens the operator site in a new tab)Read the review: Magical Vegas |
| Place 2 |  Bella CasinoRank Interactive (Gibraltar) Limited | Score: 7.9 out of 10, good | 100 bonus spins on Kong 3 Even Bigger Bonus when you deposit and stake £10 Significant terms New players; min deposit £10 (Paysafecard excluded) and £10 stake on Kong 3 Even Bigger Bonus; 10x wagering; max win £200 |
| Visit Bella Casino (opens the operator site in a new tab)Read the review: Bella Casino |
| Place 3 |  666 CasinoJupiter Gaming Limited | Score: 7.8 out of 10, good | 20 spins on Big Bass Splash when you deposit and wager £20 Significant terms 18+, new players, first deposit; £20 must be wagered on Big Bass Splash within 7 days; spins on Big Bass Splash; 0x wagering on winnings | Not listed | Visit 666 Casino (opens the operator site in a new tab)Read the review: 666 Casino |
| Place 4 |  Amazon SlotsJumpman Gaming Limited | Score: 7.7 out of 10, good | Chance to win up to 500 bonus spins on Starburst Significant terms 18+, new players, £10 min fund; bonus spins winnings subject to 10x wagering; max bonus conversion equal to lifetime deposits up to £250; only bonus wagers count |
| Visit Amazon Slots (opens the operator site in a new tab)Read the review: Amazon Slots |
| Place 5 |  Pub CasinoL & L Europe Limited | Score: 7.4 out of 10, good | 50 cash spins on Octobeer Fortunes after depositing and wagering £10 Significant terms Deposit and wager £10; activate before depositing; spins £0.20 each, winnings paid as cash, no max cash out; Skrill deposits excluded; spins expire in 48 hours |
| Visit Pub Casino (opens the operator site in a new tab)Read the review: Pub Casino |
| Place 6 |  LuckyMateAnakatech Interactive Limited | Score: 7.4 out of 10, good | 50 bonus spins on Big Bass Splash when you bet £10 on slots Code MATE50 Significant terms £10 min deposit; £10 in slot bets; 50 spins at £0.10 (£5 total); x1 wagering, £1 max bet contribution; £100 max cashout from winnings; 7-day expiry; selected payment methods only | Not listed | Visit LuckyMate (opens the operator site in a new tab)Read the review: LuckyMate |
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Questions readers ask
What is the RTP of Reactoonz?
Published figures are 96.51% or 96.00% depending on the build. Check the in-game information at your casino.
How do you win on Reactoonz?
By landing clusters of five or more matching symbols on the 7x7 grid; wins cascade and can chain.
Is Reactoonz 2 the same game?
No. Reactoonz 2 is a sequel with its own features and figures.
Can I play Reactoonz free in the UK?
Only after age verification, either on Play'n GO's site or in demo mode at a licensed casino. There is no demo on this site.
What is the maximum win on Reactoonz?
4,570x the stake, which is consistent with the cash cap shown by other databases.
Is Reactoonz high volatility?
Yes. Most of its larger wins come from the features unlocked by the charge meter, so results swing widely.