Gargantoonz Slot Review

Gargantoonz Slot Overview

From the moment I loaded Gargantoonz, it felt like coming back to familiar territory. The action plays out on a 7x7 grid with cluster wins, so five or more matching aliens touching horizontally or vertically pay. Symbols drop in through cascades, clearing space for new clusters. Stakes run from 0.10 up to 100 per round, so I could grind low or push higher while chasing that sleepy three‑eyed star.

Gargantoonz keeps the spirit of the series with high volatility and a default RTP around 96.2%, backed by a max win of 7000x the bet. Sessions swing hard, yet the game has that steady build where each cascade, wild drop, and charge brings you closer to experiments and, hopefully, the Gargantoonz feature. It feels less raw than the first outing, but the grid play is still very engaging.

How To Play Gargantoonz Slot

Playing Gargantoonz is straightforward once you accept the chaos. I set my stake with the plus and minus buttons, hit spin, and watched for clusters of five or more matching symbols. Winning clusters explode, new aliens fall in, and the process repeats until no fresh win appears. Everything else, from Fluctuation to the experiments and Gargantoonz itself, builds automatically on top of those cascading cluster wins.

Gargantoonz Slot Paytable & Symbols

The low pays in Gargantoonz are the one‑eyed aliens, just as in the older Toonz titles. There are five of them, and a tiny cluster of five only pays around 0.1 to 0.2 times your bet. Things escalate quickly as the cluster grows, though. Hit 18 or more of the same small alien in one group and you can land wins in the region of 20x the stake, which feels decent for filler symbols.

High‑pay symbols in Gargantoonz are the two‑eyed creatures, and these are where the real clusters start to sting. Five of a kind pay roughly 0.5 to 1x, but once you climb into big groups the values jump hard. Mid‑tier two‑eyed aliens can reach around 250x for 18+, while the top red alien, the Blocktoon style symbol, can hit up to 1500x for a single massive cluster.

Wilds do a lot of heavy lifting in Gargantoonz. The standard Quantum wilds drop in through features like Fluctuation, Discharge, or the experiments, and simply substitute for any pay symbol to help build clusters or extend wins. Then you have Gargantoon wilds during the main feature, arriving in blocks that merge from 1x1 to 2x2 and finally 3x3, all carrying whatever multiplier you have managed to charge.

Symbols and Paytable

Symbol	Quantity	Payout
	18+	x1500
	15+	x200
	12+	x40
	7	x2.4
	6	x1.6
	5	x1
	18+	x500
	15+	x100
	12+	x20
	7	x2
	6	x1.2
	5	x0.8
	18+	x400
	15+	x80
	12+	x16
	7	x1.6
	6	x1
	5	x0.6
	18+	x250
	15+	x50
	12+	x10
	7	x1.2
	6	x0.8
	5	x0.5
	18+	x250
	15+	x50
	12+	x10
	7	x1.2
	6	x0.8
	5	x0.5
	18+	x40
	15+	x10
	12+	x3
	7	x0.5
	6	x0.3
	5	x0.2
	18+	x40
	15+	x10
	12+	x3
	7	x0.5
	6	x0.3
	5	x0.2
	18+	x40
	15+	x10
	12+	x3
	7	x0.5
	6	x0.3
	5	x0.2
	18+	x20
	15+	x5
	12+	x1.6
	7	x0.3
	6	x0.2
	5	x0.1
	18+	x20
	15+	x5
	12+	x1.6
	7	x0.3
	6	x0.2
	5	x0.1
	Wild

Gargantoonz Slot Features

The foundation of Gargantoonz is the cascading grid, backed up by Fluctuation and Discharge. On every spin, one low‑value, one‑eyed alien is marked as fluctuating. If I land a win with that symbol, one or two Quantum wilds drop into the spaces it left behind. When a round ends without any win, Discharge can kick in instead, spraying four to eight wilds across random positions to try and save the spin.

All those clusters feed the Experiment Charger in Gargantoonz. In the base state, 20 winning symbols in one sequence light it up and trigger a random experiment once cascades finish. Gamma Ray Burst adds seven to nine wilds, Black Hole adds four to six and pulls in neighbours, while Supernova drops three to five and sends them stepping diagonally as long as wins keep landing.

Every successful experiment charges the separate Gargantoon meter. During this stage, only clusters that include experiment wilds count towards the next step. Collect enough and you can overcharge the meter, nudging the Gargantoon multiplier from x1 up to as much as x4. Land all three experiments in a single chain of cascades and the Gargantoonz feature fires, dropping in merging Gargantoon wilds that grow from 1x1 to a huge 3x3.

Gargantoonz Slot RTP & Volatility

Gargantoonz runs on a high volatility maths model, so the balance line can feel jumpy, especially when you are chasing experiments rather than cashing out small clusters. The default RTP sits around 96.2%, though I know some sites use lower settings, so I always check. On paper the slot can pay up to 7000x the bet in one spin, which puts it near the top of the Toonz line‑up.

Gargantoonz Slot Graphics & Audio

Visually, Gargantoonz sticks close to the earlier games, mixing a space backdrop with lab equipment flanking the grid. The 7x7 board sits on a dark panel filled with bright alien faces, and various meters pulse away at the sides. I like the way the fluctuating symbol glows, and how experiment wilds feel slightly different. It is not some giant leap forward, yet it looks sharp on both desktop and mobile.

The soundtrack in Gargantoonz leans into retro synth lines with a sci‑fi edge, layered with bleeps and those trademark alien giggles. During quiet spells it stays quite relaxed, then ramps up as the meters climb or a big experiment kicks off. After a long session the audio still felt fine to me, never too harsh, and I liked leaving it on rather than muting the game, which is rare.

Gargantoonz Slot Verdict

As someone who has sunk a lot of hours into the Toonz series, Gargantoonz hits a sweet spot for me. The road to waking the Gargantoon feels more engaging than in some earlier entries, because the experiments actually throw out meaningful wild clusters instead of just ripping the grid apart. Even when I missed the big feature, the build‑up through Fluctuation, Discharge, and wild‑driven cascades kept sessions lively.

That said, the Gargantoonz feature itself can still whiff, and a long charge that ends in a flat set of merges stings. I have had runs where the 1x1 and 2x2 stages barely connected, then the 3x3 dropped in the wrong place and paid very little. If you can live with that occasional anti‑climax, this slot offers some of the most entertaining grid play Play'n GO have put out.

Screenshots