Reactoonz is Play’n GO’s alien cluster slot from October 2017: cartoon toons on a 7×7 grid, where clusters of five or more pay and winners vanish so new symbols cascade in. A charge meter feeds wild-making and grid-changing features, ending with Gargantoon, a giant 3×3 wild. There are no free spins, and it returns 96.51% with a 4,570x top win. Play the official Reactoonz demo below free, no download.
The Reactoonz slot has no paylines. The 7×7 grid pays for clusters of five or more identical aliens touching horizontally or vertically, and every win is removed so the symbols above drop and new ones fall in. Bets run from 20 cents to $100 a spin. The default return to player is 96.51%, and databases list four lower settings a casino can choose: 94.51%, 91.49%, 87.50% and 84.51%; one site’s 96.00% is an outlier. Play’n GO rates the volatility 10 out of 10, very high, though several info boxes just say high, and no game-specific hit frequency is published. The Reactoonz max win is 4,570 times the total bet, which is $457,000 at the top stake; one site’s 4,750x is a typo. There are no free spins, jackpots, bonus buy or gamble.
Reactoonz Pokies Characteristics
Each paid spin runs until the cascades stop, so one stake can produce a long chain of wins. Eight aliens fill the grid: four one-eyed low payers and four two-eyed high payers. There is no scatter and no bonus symbol, and the wilds, which Play’n GO calls Flux Capacitor wilds, never land on their own. They substitute for every paying alien, carry no multiplier and are created only by the features.
Outside the meter, two features make wilds. Fluctuation marks one random one-eyed alien at the start of each spin, and marked symbols in a winning cluster leave two wilds behind; sources word it differently on whether that is two per symbol or per cluster. Instability can strike at random on a spin with no win and drop four to eight wilds onto the grid. A third, Giantoonz, merges four identical aliens in a 2×2 square into one giant alien, and any win that includes it is doubled.
Wins below are multiples of the total bet for clusters of 5, 6, 7, 8, 9, 10 to 11, 12 to 14 and 15 or more, in that order.
The full table comes from one database with a misprint in its column headings; a second source matches the five-symbol and 15-plus values exactly. The top end is steep: 14 pink aliens pay 50x, 15 pay 750x, and a giant alien inside the cluster doubles it. Small one-eyed clusters return less than the stake, which is why the features that clear them matter.
Every winning symbol adds one charge to the Quantum Leap meter beside the grid, and by the databases’ count 25 charges fill a level. Each of the first four levels queues a random Quantum feature and the fifth queues Gargantoon. Queued features fire in order once no more wins form, and the meter resets at the end of the spin sequence, so nothing carries over to the next spin. Play’n GO says a full charge can trigger up to five features.
Implosion turns three to six random symbols into wilds and destroys the symbols around them. Demolition removes every one-eyed alien, leaving the high payers in place. Incision places a wild in the centre and draws two diagonal lines through it that turn into the same random symbol, an X across the grid. Alteration picks one one-eyed alien at random and turns every copy of it into another symbol. Each one rebuilds the grid and can start a fresh run of cascades.
Gargantoon is the reward for filling all five levels, which takes 125 winning symbols in one spin sequence. He lands as a 3×3 wild: the databases say in a random position, while Play’n GO’s page says the middle of the grid. After a winning cascade he splits into two 2×2 wilds, and after the next into nine single wilds, so one arrival can feed several rounds of wins. If no winning cluster forms when he lands, a random Quantum feature fires instead.
At 96.51% the game keeps about 3.5 cents of every dollar bet over the long run. At the lowest setting, 84.51%, it keeps about 15.5 cents, more than four times as much, and the game looks identical at both. One database illustrates the gap: a balance of 100 stakes lasts about 2,836 spins on average at 96.51%, about 1,803 at 94.51% and about 639 at 84.51%, in a calculation that ignores variance. Very high volatility means variance decides a single session: long runs of small cascades are normal, and most of the return arrives in a few big spins.
At $1 a spin, $100 is that 100-stake balance. A cluster of 15 or more pink aliens would pay $750 and the cap is $4,570; at the 20-cent minimum those become $150 and $914, and the same $100 covers 500 spins.
Reactoonz grew out of Energoonz (2013), a 5×5 cluster game with a bonus spelled out in letters and no Quantum meter. Reactoonz 2 (2020) keeps the 7×7 grid but replaces the Quantum Leap meter with a four-level Quantumeter: 55 charges give four Energoon wilds, 85 a 2×2 Energoon, 110 the 3×3 Gargantoon and 135 a Gargantoon with x2. It adds a Fluctometer that fills up to 11 and releases one to three Electric Wilds, and its default return is 96.20%, its volatility high and its cap 5,083x.
The rest of the family: Dr Toonz (2021) is a 6-reel ways game with free spins and multipliers up to 64x; Gigantoonz (2022) moves to an 8×8 grid with mega symbols up to 7×7; Gargantoonz (2023) replaces the meters with three experiments and a Gargantoon Charger multiplier; Reactoonz 100 (2025) keeps the original’s Quantum features and adds an Energized Toon multiplier that can reach 100x, with a 10,000x cap; and Reactoonz Blitzways (2026) is a 5-reel ways game with free spins. No game called Reactoonz 3 appears in the series.
The setting is cartoon sci-fi in outer space. Bright, rubbery aliens fill the grid: round yellow, triangular green, squarish red and rhombus-shaped purple one-eyed toons as the low payers, and blue, orange, green and pink two-eyed toons as the high ones. Gargantoon waits on his base beside the grid while the meter charges, then leaps in. Play’n GO’s lore has the toons created by Dr Toonz in an underwater lab, and the soundtrack is sci-fi whizzes and zaps. The game is built in HTML5, weighs 8.8 MB and runs on desktop, Android and iOS.
Reactoonz is online only, and no source places it, or any Play’n GO game, on an Australian club, pub or casino floor. No Play’n GO restriction on Australia turned up, Australian affiliate guides say the studio’s games reach Australians through overseas casinos, and no Australia-specific block on the game was observed. At least one offshore casino that accepts Australians names Reactoonz among the most popular titles in its slots lobby, and another calls it its most loved Play’n GO game. Lobbies and RTP settings vary, so search the lobby and check the paytable once the game loads. Play’n GO publishes an official Reactoonz demo on its own website, free to play.
Reactoonz is the original of what Play’n GO calls one of its most popular series, and its design still stands out: every feature happens on the base grid, with a meter that turns a long cascade into wilds and rebuilt grids. It suits players who like busy, unpredictable spins and accept very high volatility. It does not suit anyone after free spins, a bonus buy, a jackpot or a steady balance. The one thing to check is the RTP in the paytable: 96.51% is fair, and 84.51% is an expensive way to play the same game.
96.51% by default. Casinos can run 94.51%, 91.49%, 87.50% or 84.51% instead, and the in-game paytable shows which one you are playing.
Fill the Quantum Leap meter to its fifth level within one spin sequence. Each level takes 25 winning symbols; the first four queue Quantum features and the fifth brings Gargantoon.
4,570 times the total bet, which is $457,000 at the $100 maximum stake. There is no jackpot on top.
No. Every feature runs in the base game, and there is no bonus buy or gamble either.
Online only, at offshore casinos that accept Australians; no Play’n GO restriction on Australia was found, but lobbies vary. Play’n GO publishes an official free demo.
Reactoonz 2 (2020) swaps the Quantum Leap meter for a four-level Quantumeter and adds the Fluctometer and Electric Wilds. Its default RTP is 96.20% and its cap 5,083x, against 96.51% and 4,570x for the original.
