How does the Gargantoon work?

Fill all 4 Quantum Leap meters to release the Gargantoon — a 3×3 wild that splits into smaller wilds over 3 cascades.

What are cluster pays?

Instead of paylines, you win by landing clusters of 5+ matching symbols touching horizontally or vertically.

Last updated: March 2026

Reactoonz Slot Review

4.5

Play'n GO • RTP 96.51% • High Volatility

Game Overview

Reactoonz is a quirky 7×7 cluster-pays slot from Play'n GO featuring colourful alien creatures. Create clusters of 5+ matching symbols to win, with cascading reactions removing winning clusters and dropping new symbols. The game features a Quantum Leap charge meter that unlocks increasingly powerful features, culminating in the Gargantoon — a massive 3×3 wild that breaks into smaller wilds.

Pros

Unique 7×7 grid with cluster pays
Multiple cascading win features
Gargantoon creates huge win potential
Charming alien art style
Engaging chain reaction gameplay

Cons

Complex mechanics may confuse beginners
High volatility with unpredictable sessions
No traditional free spins round
Max win of 4,570x is moderate

Frequently Asked Questions

Written by

Sarah Mitchell

Slot Review Specialist

Sarah enjoys Reactoonz for its unique mechanics and addictive chain-reaction gameplay.