3 Super Coin Volcanoes Slot Review

Edward Craven Walker spent the early sixties fiddling with wax 🕯️ and coloured liquid in a saucepan, chasing a recipe most people would have binned after a fortnight.

He cracked it in 1963, and the reward for all that effort was a glass bottle sat over a hot bulb 💡 that does precisely nothing useful.

The blobs 🫧 rise, break apart, sink, pool back together, and start the whole thing over again.

It became one of the most recognisable design objects of the twentieth century on the strength of drifting. I've lost real hours to one, which says more about me than it does about Walker.

So I felt oddly at home loading up 3 Super Coin Volcanoes slot from Booongo.

The game runs on that same rhythm. Coin and jackpot values rise and pool on the board doing nothing much, until a Coin Collect lands, applies any live multipliers and sweeps the lot into one win. That collapse, at its biggest, is where 6,997x lives.

Gameplay

The reels sit in a purple-lit cavern with 3 volcanoes standing over them, labelled Life in green, Multi in red and Grow in blue, each one marking a Hold and WinThis feature plays out on a new screen. Typically, you get 3 re-spins (which could be re-triggered), and the triggering symbols usually stick to the position on which they land. Your objective is to land as many symbols as possible on the grid (you could land blank tiles, too). booster.

A jackpot ladder runs down the left side and the gold coins glow against deep red tiles, so you always know exactly which symbols you're supposed to care about.

You're playing a 4x3 grid across 1 to 3 active lines. RTPRTP stands for “Return to Player.” The RTP describes the total bet amount that a game returns to players over millions of spins, and that figure is represented by a percentage. Table games, such as Roulette, typically have higher RTPs than many slots.

RTP needs to be considered in conjunction with a game’s volatility rate. is 94.73%, volatility sits at Medium/High.
The max multiplier is 6,997x for a max win of $419,820, and bets run from $0.10 to $60 a spin.

All currencies are welcome except Japanese yen, which isn't accepted.

Here's the part that changes how you read the screen: there are no regular paying symbols in the game at all. Every position holds either a Coin value or one of 5 jackpots, and landing 4 of them on an active line is what fires the Hold and WinThis feature plays out on a new screen. Typically, you get 3 re-spins (which could be re-triggered), and the triggering symbols usually stick to the position on which they land. Your objective is to land as many symbols as possible on the grid (you could land blank tiles, too)..

Playing 2 or 3 lines raises your bet by a matching 2x or 3x and improves your odds of triggering, but it buys you no payline wins of its own.

Coins pay 0.2x to 4x. Above them sit the 5 jackpot tiers: Mini at 10x, Minor at 20x, Major at 50x, Grand at 500x and the Royal Jackpot at 2,000x.

Mini through Major land as ordinary grid values. Grand only pays for filling all 12 positions of the base 4x3 grid, and Royal only pays for filling all 20 positions after the Grow Volcano stretches the board to 4x5.

The Sticky Coin pays 5x to 9x and can drop at random in the base game or inside the Hold and WinThis feature plays out on a new screen. Typically, you get 3 re-spins (which could be re-triggered), and the triggering symbols usually stick to the position on which they land. Your objective is to land as many symbols as possible on the grid (you could land blank tiles, too)., then stays welded to the reels until the round ends.

Change your bet or your number of active lines and every Sticky Coin already sitting there is wiped, so pick your bet before you get comfortable.

The Mystery symbol becomes any other symbol on the board. The Mystery Jackpot is fussier and only turns into Mini, Minor or Major. Both resolve one at a time once the Hold and WinThis feature plays out on a new screen. Typically, you get 3 re-spins (which could be re-triggered), and the triggering symbols usually stick to the position on which they land. Your objective is to land as many symbols as possible on the grid (you could land blank tiles, too). finishes.

The Coin Collect symbol is the one that does the damage: it sweeps every Coin and jackpot value already on the board straight into the win, applies any multiplier first, then sticks to the reels for the rest of the round.

Features

HOLD AND WIN:

Land 4 Coin or jackpot symbols carrying a coloured Fire Mark on an active line and you're in.

The round starts with 3 Re-Spins and resets back to 3 every time a new bonus symbol lands, ending only when the counter empties or the grid fills completely.

Every Coin, jackpot, Sticky Coin, Mystery and Mystery Jackpot symbol that lands locks in place until the round is over, so the board only ever gets denser.

Life Volcano:

A green Fire Mark refills the Re-Spins counter once during the round. It doesn't add value, it buys time, which on a board you're trying to fill completely is the same thing.

Multi Volcano:

A red Fire Mark drops random multipliers onto the Coin and jackpot values already sitting on the grid.

This is where the Mini, Minor and Major tiers stop looking like loose change; 10x, 20x and 50x are modest on their own and considerably less modest once multipliers land on top and a Coin Collect sweeps them.

Grow Volcano:

A blue Fire Mark expands the grid from 4x3 to 4x5, opening the 8 extra positions you need to reach the Royal Jackpot. Without it, 2,000x is not on the table.

SUPER WHEEL:

Every entry into the Hold and WinThis feature plays out on a new screen. Typically, you get 3 re-spins (which could be re-triggered), and the triggering symbols usually stick to the position on which they land. Your objective is to land as many symbols as possible on the grid (you could land blank tiles, too)., earned or bought, comes with one complimentary spin of the Super Wheel first.

Land a volcano segment (Life, Multi, Grow or Gold) and a single round is upgraded to a double, a double to a triple, with the Gold Volcano bringing bigger multipliers along with it.

Land a jackpot segment (Mini, Minor or Major) or a symbol segment instead and you get extra Mystery, Mystery Jackpot or Coin Collect symbols dropped onto the board before a single spin happens.

Either way, you're never entering the Hold and WinThis feature plays out on a new screen. Typically, you get 3 re-spins (which could be re-triggered), and the triggering symbols usually stick to the position on which they land. Your objective is to land as many symbols as possible on the grid (you could land blank tiles, too). empty-handed.

BUY BONUS:

Three ways to skip the queue. Random Bonus costs 50x the bet and triggers 1 to 3 volcanoes at random.

Triple Heat costs 150x and activates all 3 together. Golden Madness costs 500x and brings in the Gold Volcano's bigger multipliers.

One warning: any Sticky Coins you've collected on the board do not carry into a purchased round, so buying straight after a good base-game drop throws that work away.

Performance

I ran the game through every test session without a single dropped animation or hang, including deep into the Hold and WinThis feature plays out on a new screen. Typically, you get 3 re-spins (which could be re-triggered), and the triggering symbols usually stick to the position on which they land. Your objective is to land as many symbols as possible on the grid (you could land blank tiles, too). with a full grid resolving.

Maximum Win

The max win is $419,820, reached through the max multiplier of 6,997x at the top bet of $60, with the smallest bet set at $0.10.

Conclusion

The game's money comes almost entirely from the Hold and WinThis feature plays out on a new screen. Typically, you get 3 re-spins (which could be re-triggered), and the triggering symbols usually stick to the position on which they land. Your objective is to land as many symbols as possible on the grid (you could land blank tiles, too)., because the base game pays nothing at all except the right to trigger it.

Three mechanics do the actual work: Coin Collect sweeping every value already on the board, Multi Volcano stacking random multipliers on those values, and Grow Volcano opening the board to 20 positions and the Royal Jackpot.

Take those away and you have a very quiet screen.

Getting to 6,997x means landing several big jackpot values while the Multi Volcano's multipliers and a Super Wheel-upgraded double or triple round are all live at the same time.

No single jackpot gets anywhere near that figure alone, not even the Royal Jackpot by itself. That's a genuine ceiling rather than a marketing number, but treat it as a long-odds target, not a session goal.

The card says Medium/High volatility, and a max multiplier north of 6,000x sits squarely in the high half of that.

Let's be honest about 94.73%: that RTPRTP stands for “Return to Player.” The RTP describes the total bet amount that a game returns to players over millions of spins, and that figure is represented by a percentage. Table games, such as Roulette, typically have higher RTPs than many slots.

RTP needs to be considered in conjunction with a game’s volatility rate. is below what you'd want for long grinding sessions, so this rewards short, well-funded bursts rather than an evening of chipping away.

Of the 3 Buy Bonus tiers, Random Bonus is the cheapest door but leaves the volcano mix to chance.

Triple Heat is the better of the two mid options because it guarantees all 3 boosters at a fixed price, while Golden Madness only earns its keep if you're specifically hunting the Gold Volcano's bigger multipliers.

The game suits patient, big-bet players chasing the Hold and WinThis feature plays out on a new screen. Typically, you get 3 re-spins (which could be re-triggered), and the triggering symbols usually stick to the position on which they land. Your objective is to land as many symbols as possible on the grid (you could land blank tiles, too)., bought or earned.

Low-bet players hunting frequent small wins should walk past, because nothing here pays a penny until bonus symbols with a Fire Mark actually land.

Slot Details

Game Provider: Booongo
Game Type: Video Slots
PaylinesPaylines are preset lines that run across the reels, and when you land matching symbols on them, that will result in a payout. The more paylines, the more ways you can win, but also the higher your bet per spin.: 1-3 Lines
RTPRTP stands for “Return to Player.” The RTP describes the total bet amount that a game returns to players over millions of spins, and that figure is represented by a percentage. Table games, such as Roulette, typically have higher RTPs than many slots.

RTP needs to be considered in conjunction with a game’s volatility rate.: 94.73%
Volatility RateSlot games can have low, medium, high, or extremely high volatility rates (or a combination thereof).

The less volatile the game, the more often it should pay out, but the lower the amount, the less the payout, as this is in keeping with the risk you’re taking. Volatility rate should be considered in conjunction with a game’s RTP.: Medium/High
Bonus Round: Yes
Progressive: No
Free Rounds: Re-spins
Max Multiplier: 6,997x
Max Win: $419,820
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