Reactoonz 2
4.2/5.0

Reactoonz 2

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Reactoonz 2 amps up the chaos with Electric Wilds, Energoon blasts and a top prize of 5,083× your stake. We dig into its volatile grid mechanics, bankroll tips and why Twitch can’t stop watching. Ready to trigger Gargantoon?

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4.2 Overall Rating

 

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Choose Reactoonz 2 for Today’s Play

The 7 x 7 grid in Reactoonz 2 fills with bright, jovial aliens that tumble in from above. Wins land when clusters of 5 or more identical symbols connect horizontally or vertically; the winning group disappears and fresh symbols cascade into the gaps, creating the chance for chained wins.

Core Gameplay Elements

  • Match 5+ identical aliens in a cluster.
  • Only horizontal or vertical connections count (diagonals do not).
  • Cascades continue until no new win forms.
  • Two meters work in tandem: the Fluctometer (creates Electric Wilds) and the four-level Quantumeter (unleashes Energoon or Gargantoon wilds).

Special Features

Electric & Uncharged Wilds

  • A randomly chosen one-eyed alien is fluctuating each spin. Any cluster that includes it spawns 1-3 Electric Wilds.
  • Uncharged Wilds may drop in on a non-winning spin; they turn Electric when they help form a win.

Energoon & Gargantoon

  • Energoon: When the Quantumeter hits 55 or 85 charges, a 2×2 or 3×3 Energoon Wild drops.
  • Gargantoon: At 110 charges the famous 3 × 3 Gargantoon arrives, splits into two 2 × 2 Wilds after one cascade, then into nine 1 × 1 Wilds—each win involving it gets a 2× global multiplier.

Wild Pair Explosion

If a spin ends with ≥2 Electric Wilds and no win, they either blast away surrounding symbols or remove everything except themselves, giving one more tumble.

Pattern of Play

  1. Select your stake (CA$0.20 – CA$100 per spin, depending on the casino).
  2. Symbols tumble in.
  3. Cluster wins power the Fluctometer and Quantumeter simultaneously.
  4. Electric Wilds, Energoon and Gargantoon features trigger in sequence while cascades last.
  5. When no further win appears, the round ends and both meters reset.
Reactoonz 2 slot

Playing Reactoonz online in Casino

Reactoonz Series at a Glance

Reactoonz (2017) Reactoonz 2 (2020)
Grid/Layout 7 × 7 7 × 7
Main Wild Feature Gargantoon Energoon & Gargantoon + 2× multiplier
Meter(s) Quantum Leap (5×25 symbols) Fluctometer & Quantumeter (4 levels)
Max Win 4,570× bet 5,083× bet
Default RTP* 96.00 % 96.20 %
Volatility High High

*Play’n GO supplies alternate RTP settings (94 %, 91 %, 87 %, 84 %) that some casinos may use. Always check the game info panel.

Mobile & Regional Variants
Both titles were built in HTML5, so gameplay and features are identical on desktop and mobile. Only RTP variants and maximum-bet limits may change with jurisdiction, but mechanics are untouched.

Reactoonz 2: Technical Snapshot

  • RTP: 96.20 % (default)
  • Volatility: High
  • Max Win: 5,083 × stake
  • Min/Max Bet: CA$0.20 – CA$100
  • Cluster Pays: 5+ matching symbols
  • Key Modifiers: Electric Wilds, Energoon Wilds, Gargantoon Wilds, Wild Pair Explosion

There are no blanket cluster multipliers; instead, payouts scale with cluster size according to the pay-table, while 2× multipliers come from Giant Gargantoon wins at Quantumeter level 4.

Cascading Cluster Mechanics

Because wins clear space on the grid, Reactoonz 2 often strings several clusters together in one paid spin. Each winning symbol that includes an Electric Wild adds one charge to the Quantumeter; winning fluctuating symbols also top up the separate Fluctometer, which can award up to three extra Electric Wilds before resetting.

Instability

On any non-winning base spin (including the very first tumble), 4 – 6 Uncharged Wilds may drop in to kick-start potential clusters. If they help complete a win, they convert to Electric Wilds and begin charging the meters immediately.

Bankroll & Bet-Sizing Tips

Reactoonz 2 is inherently high-variance; strategies can only smooth the ride, not beat the math.

  • Stake ≈ 1 % of bankroll to survive cold streaks.
  • Hold your stake steady when the Quantumeter passes 50 charges—Energoon often lands within the next 3-6 cascades.
  • Avoid ballooning stakes after big hits; the game’s hit frequency (~1 in 4 spins) stays fixed.
  • If Gargantoon just paid out and both meters are empty, consider dropping a notch for the next dozen spins.

Why Streamers Love It

  • Constant on-screen progress: filling meters builds suspense for viewers.
  • Explosive reveals: a single Gargantoon drop can rocket a balance 1,000× in seconds.
  • Recognisable audio: the charge-up “whoop” and Gargantoon roar have become meme-worthy.
    Notable clips include Roshtein’s 11,500× win in 2019 and DeuceAce’s 9,400× in 2020—both on the original Reactoonz, but Reactoonz 2 has since eclipsed many of those records.

Grid Slots to Try Next

Title (Provider) Grid Core Twist
Energoonz (Play’n GO) 5 × 5 Prequel with simpler quantum feature
Gigantoonz (Play’n GO) 8 × 8 Giant symbol clusters & Mega Gargantoon
Jammin’ Jars (Push Gaming) 8 × 8 Sticky Wild jars that climb multipliers
Sweet Bonanza (Pragmatic Play) 6 × 5 Scatter-pay wins & free-spin multipliers

What Makes Reactoonz 2 a Stand-Out

  • Deep, video-game-like mechanics that reward learning the meters.
  • Huge single-spin potential (5,083×) without a bonus-buy cost.
  • Visually distinct aliens that have spawned a mini-fandom and merch.
  • Perfect for volatility-seekers who like to chase rare, screen-filling wild drops.

Who’ll love it: players who enjoy complex grid slots, chain reactions and high-risk/high-reward play.
Who should skip: fans of traditional paylines or those who prefer low-volatility games with steady returns.

Final Word

The sequel refines everything that made the 2017 classic a cult favourite: smoother visuals, an extra layer of meter strategy, and slightly higher top-end payouts. As long as you keep its high volatility in mind—and play at a casino offering the full 96.20 % RTP—Reactoonz 2 remains one of the most entertaining grid slots on the market today.

Pros
  • Chain-reaction gameplay
  • Multiple wild types
  • Good 5083x win potential
Cons
  • Complex mechanics
  • No bonus-buy option

Writes content for pages for more than 5 years, and our social media posts. Reviewed more than 200 casinos, their games selection, payment methods, as well as slots themselves.

Stephen Bishop

Gambling copywriter

stephen@treereadingseries.ca