Reactoonz 100 Slot (Play ‘n GO)
Provider: Play 'n GO
Reviewed by: Chris Taylor
Reactoonz 100 Info
Play 'n GO
Space
96.2%
Very High
7x7
Cluster Pays
10p to £5
10,000x
53.48%
23 Oct 2025
Overview
Part of the Reactoonz and 100 series, the Reactoonz 100 slot is from Play ‘n GO. Played on a 7x7 grid with Cluster Pays, join the infamous electrifying bundles of alien energy at online slot sites, from 10p a spin.
With Cascades for continuous wins, every cluster win that includes an Energized Toon is multiplied by the current multiplier (to the left of the grid). The position of the Energized Toon is chosen randomly when the multiplier reaches 2x with a new one chosen with each cascade. Winning clusters see the multiplier increase up to 100x: one-eyed symbol wins increase the multiplier by 1 whilst two-eyed symbol wins increase the multiplier by 3.
Furthermore, there is a Quantum Charger meter which is charged by winning on 25 symbols. You can charge 4 Quantum features in random order with the 5th feature only triggered by the Gargantoon. Queued features are activated when no winning clusters land. They include:
- Implosion: transforms 3 to 6 symbols into wilds, whilst also destroying all adjacent symbols.
- Incision: places a wild into the centre of the grid and creates 2 intersecting diagonal through the grid. Both lines will display the same randomly chosen symbol.
- Demolition: destroys all one-eyed symbols and matching symbols.
- Alteration: 1 one-eyed symbol is randomly chosen will all matching symbols transforming into another symbol.
The Gargantoon feature is always charged and triggered as the 5th Quantum extra. When activated, the Gargantoon appears on the grid as 8 wild symbols that merge into 2 large 2x2 wilds and then into a colossal 3x3 wild when the cascading sequence ends. Unfortunately, it cannot be an Energized Toon.
On non-winning spins, there is a chance that the Instability feature can trigger: between 4 and 8 wilds will be randomly added onto the grid. The Fluctation feature can also activate in the same way: a one-eyed symbol is randomly chosen as the fluctuating symbol. If part of a winning cluster, that cluster creates 2 wilds.
With a 96.2% RTP rate, Reactoonz 100 comes with 10,000 x bet max wins: play the free demo below. Want more games to play for fun? Head to the demo slots section at OLBG.
Reactoonz 100 Slot Demo
Play Reactoonz 100 slot for real money
- Wagering req. 10x
- Value/free spin £0.10
- Offer amount £14
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- Wagering req. 0x
- Value/free spin £0.10
- Offer amount £10
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- Wagering req. 0x
- Value/free spin £0.20
- Offer amount £10
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- Wagering req. 0x
- Value/free spin £0.10
- Offer amount 100
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Part of the Reactoonz Series
Reactoonz 100 is the 7th game in the Reactoonz slots series. Play ’n GO launched the Reactoonz series with Energoonz in December 2013, followed by the hugely popular Reactoonz in October 2017, and later sequels like Reactoonz 2, Dr Toonz, Gigantoonz, and Gargantoonz.
These interstellar, grid‑based slots feature the Cluster Pays mechanic, cascading wins, quirky alien characters, and the innovative Quantum Leap meter powering creative bonus features such as wild transformations and the Gargantoon. My guide includes free demos, character breakdowns, and recommendations for top UK sites licensed to host these slots. Below is a closer look at the Reactoonz and Dr Toonz games:
Reactoonz
- RTP: 96.51%
- Max Win: 4,570x
- Volatility: Very High
- Stakes: 20p to £5
- Release Date: 23 October 2017
Reactoonz is a vibrant 7x7 grid slot using the Cluster Pays mechanic, with an RTP of 96.51%. It’s a very high‑volatility game offering 4,570 x bet max win potential. Cascading wins fuel the Quantum Leap meter, unlocking special features like Implosion, Alteration, Vortex Wilds, and the Gargantoon, a giant 3×3 wild that breaks into smaller wilds across the grid.
Dr Toonz
- RTP: 96.25%
- Max Win: 22,000x
- Volatility: High
- Stakes: 20p to £5
- Release Date: 9 September 2021
Dr Toonz is the highest-paying game in the Reactoonz series, offering 22,000 x bet max wins with a solid RTP of 96.25%. Set in a quirky, mad-scientist laboratory, it has 6 reels and 4,096 ways to win. Featuring cascading reels, there is a dynamic free spins mode with up to 2 charges per spin. Dr Toonz’s eccentric personality, complete with a German accent and memorable catchphrases like ‘E = mc²’, adds charm to an immersive and mechanically rich gameplay.
Complete Guide to Play ‘n GO’s Reactoonz Slot Series
Reactoonz 100 Expert Review
More Cluster Pays Games
Want more Cluster Pays slots? My article delves into the mechanic, explaining how they use a grid system (no reels or paylines) where wins come from 5+ adjacent matching symbols horizontally or vertically. I ranks the top 10 Cluster Pays games, with details on RTPs, volatility, release dates, and max win potential.
Also comparing Cluster Pays to Scatter Pays slots, the article highlights mechanics, providers, plus pros and cons. Before you explore, below are my 3 favourite Cluster Pays games:
Jammin’ Jars (Push Gaming)
- RTP: 96.83%
- Max Win: 19,998.5x
- Volatility: High
- Stakes: 20p to £5
- Release Date: 18 September 2018
Set on an 8x8 grid, Push Gaming’s Jammin’ Jars employs the Cluster Pays mechanic: wins form when 5+ matching symbols connect horizontally or vertically. With a high RTP of 96.83%, cascading wins feature sticky Jam Jar wilds that increase multipliers and trigger big payoffs of up to 19,998.5 x your total bet.
The Border (Nolimit City)
- RTP: 96.17%
- Max Win: 44,288x
- Volatility: Extreme
- Stakes: 20p to £5
- Release Date: 13 September 2022
The Border from Nolimit City is its first grid-style Cluster Pays slot: wins require clusters of 5+ matching symbols. Extreme volatility, it comes with special symbols that can split, nudge and transform clusters as well as increasing the win multiplier. With xBomb Wilds and 2 free spins with an xCluster mechanic, it comes with 44,288 x bet max win potential.
Uncle Profit (Print Studios)
- RTP: 96.08%
- Max Win: 50,000x
- Volatility: High
- Stakes: 20p to £5
- Release Date: 19 June 2025
Uncle Profit is a Cluster Pays slot on a 5x5 grid by Print Studios, featuring a quirky garden‑gnome theme. With wins that see winning symbols transform into coins which are collected when Uncle Profit appears, you can shoot down gnomes and win more in an optional gamble. In the Gnome Festival Bonus, you get free spins with held winning symbols. With the Coin Multiplier increasing up to 100x, raccoons consume symbols for more wins. It comes with 50,000 x bet max wins.
The Best Cluster Pays Slots to Play in the UK
More Play ‘n GO Slots
Rather play Play ‘n GO slots? My guide highlights their top games, free demos, key facts, notable slot series (like Wilde, Reactoonz, Dead or 100), branded music titles, and the best UK-licensed casinos to play them. With over 400 Play ’n GO slots since 2005, including the iconic Book of Dead and mobile-first design, they’re a leading provider.
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