3 Super Volcanoes

3 Super Volcanoes Slot Review

Three cartoon volcano cones perch above the reels, blue, red and green, each crowned with a spurt of gold lava, and a river of the stuff winds through the misty valley below. 3 Super Volcanoes puts its best idea in plain sight: the base game isn’t dead time between collect rounds, because those three cones on the frame are quietly keeping score of everything the middle row does. Evoplay have wrapped it all in glossy cartoon fantasy, saturated blues and molten orange, and that’s a lot of live machinery for a 4×3 grid.

The reels themselves hide a hold-and-collect game with an unusual arming system. There’s no RTP published for this one, so the maths is a closed book, but the structure is no secret: markers feed the volcanoes, the volcanoes hand out boosters, and the Bonus Game collects everything in sight. It’s a livelier engine than the compact grid suggests.

Base Game & Features

It’s a 4×3 grid, which puts it closer to a classic format than a modern video slot, but the layout is doing deliberate work here. Only the middle row matters for the main event: coins and special symbols that land there are the ones that count towards triggering the Bonus Game. Everything else is scenery until it isn’t.

The rock walls framing the grid are veined with glowing orange lava cracks, jagged blue-grey stone on both sides of the reels, and the whole presentation leans on that glossy cartoon fantasy look. Wins in the main game come and go quickly on a grid this shallow, which keeps the eye free to follow what the markers are doing.

Coin symbols carry fixed cash values, and the ladder of denominations seen on the reels runs as follows:

• 2
• 4
• 6
• 10
• 12
• 40
• 50

Alongside the coins there are Mystic and Mystic Treasure symbols, and when a feature fires the volcanoes themselves spill coins down towards the reels. It’s a good piece of theatre for a game this size.

Coloured Markers

The middle row gets more interesting with the marker system. In the main game, a symbol landing on the middle row can arrive carrying a green, red or blue marker, and each marker flies off to the volcano of its colour, leaving the symbol where it landed.

The colours matter because each one arms a different booster:

• Green marker feeds the Extra booster
• Red marker feeds the Multi booster
• Blue marker feeds the Grow booster

Once a booster has been triggered, the Bonus Game kicks off with it already active. During the round itself, markers can appear on symbols landing in any position, not just the middle row. That’s a meaningful shift: a round that only needed the middle row to start can now pick up booster fuel from every corner of the grid.

There’s no published maximum win for this one, so the ceiling is whatever a fully loaded Bonus Game can assemble.

3 Super Volcanoes Bonus Game & Volcano Boosters

Landing four symbols of any type on the middle row is the trigger. The round plays out with the same bet as the spin that set it off, and the structure is the classic hold-and-collect loop, scaled down to fit the grid.

Here’s how the round works, step by step:

1. The Bonus Game starts with 3 spins
2. Every symbol on the reels when it triggered stays in place for the whole round
3. Each new symbol that lands resets the spin counter back to 3
4. The round ends when the counter runs out or every position is filled
5. All symbol values on the reels are added together and paid as one total

There are five fixed prizes available only during the round, sitting alongside whatever the collected symbols add up to. Filling the grid is the dream scenario, and the reset mechanic means a single well-timed coin can keep a round breathing far past its starting allowance. With only twelve positions to cover, a hot run can lock up the entire board in a way that bigger grids rarely manage.

Because the triggering symbols stay put from the first spin, the round never starts from zero. Whatever four or more coins and specials landed on the middle row are already banked on the reels, waiting to be joined.

The Volcano Boosters

The Extra booster is the straightforward one. When it’s active, the Bonus Game begins with 4 spins instead of 3, and that fourth spin is a real extra life for a round that lives or dies on the reset.

Multi and Grow are armed by the red and blue markers respectively, and the game names both in its booster list without spelling out their full effects in print. The markers themselves tell the story: red and blue feed their volcanoes the same way green does, and those volcanoes sit right on the frame with the third one, waiting.

Bonus Buy

There’s a Bonus Buy button in the bottom-left corner of the base game, so skipping the wait is an option for anyone who’d rather go straight to the collect round. The price list isn’t stated in print here, so check the buy menu at your casino before committing to anything. The buy takes you into the same round described above, boosters and all, with whatever markers you’d want armed before you pay.

Our Honest Verdict

Overall Rating: 7.2/10

Playing this is mostly watching one row of reels and three patient cones, and that’s the whole appeal: even a spin that pays nothing has usually fed a booster, so you’re never idling in the valley. The collect round itself starts pre-loaded, and a hot run can fill all twelve positions in a way bigger grids never quite manage.

The marker system is the strength, because it makes the arming of the round visible and deliberate rather than random. The weakness is the silence around the numbers: two of the three boosters are named without ever being explained, so how Multi and Grow actually change a round is something you learn by playing, not by reading.

It suits players who like a collect slot with a visible build-up and don’t need a sprawling feature set to stay interested. Anyone who wants the maths spelled out before staking will find it thin. For the rest, the cones are loaded and the lava is already flowing downhill.

3 Super Volcanoes FAQs

• How do you trigger the Bonus Game in 3 Super Volcanoes?

  Four symbols of any type landing on the middle row trigger the Bonus Game. The symbols in place when it triggers stay locked on the reels for the whole round.
• How does the spin counter work in the Bonus Game?

  The round starts with 3 spins, and every time a new symbol lands the counter resets back to 3. The round continues until the counter runs out or every reel position is filled, at which point all symbol values are added together and paid.
• What do the green, red and blue markers do in 3 Super Volcanoes?

  Each marker flies to the volcano of its colour. Green, red and blue markers trigger the Bonus Game with the Extra, Multi and Grow boosters activated respectively.
• What does the Extra booster do?

  When the Extra booster is active, the Bonus Game starts with 4 spins instead of the usual 3, giving the round an extra life before the counter runs down.
• Can markers appear during the Bonus Game?

  Yes. In the main game markers only appear on symbols landing on the middle row, but during the Bonus Game a marker can appear on a symbol landing in any position.
• Does the Bonus Game use the same bet as the base game?

  Yes. The Bonus Game is played with the same bet as the spin that triggered it, so the round’s stakes match whatever you had riding when it started.
• What is the grid size of 3 Super Volcanoes?

  3 Super Volcanoes runs on a 4×3 grid, with the middle row carrying the trigger symbols for the Bonus Game.
• Can you buy the bonus on 3 Super Volcanoes?

  Yes, there’s a Bonus Buy button in the bottom-left corner of the base game. Prices aren’t stated in print here, so check the buy menu at your chosen casino.
• Who makes 3 Super Volcanoes?

  3 Super Volcanoes is made by Evoplay. Its release date is 8 September 2026.