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3 Super Volcanoes Slot Review

by EvoplayReleased Sep 8, 2026

Free demo - play instantly in your browser

A bonus-only build where the main game pays nothing at all - four gold coins can sit on the grid with values printed across them and the spin still ends at zero. Fill the middle row and the hold-and-win round starts, with three volcanoes deciding how far it goes: Grow pushes 4x3 out to 4x5 and unlocks the 2,000x ULTIMATE.

Demo player curtain

Specifications

Game TypeSlots
RTP96.03%
Max Win4,970x
Grid4x3-4x5
PaylinesNone - there are no paylines and no base-game wins; every win comes from the Bonus Game
Min Bet$0.1
Max Bet$10000
Themes
Features

3 Super Volcanoes Slot Overview

Nothing in the main game pays. No lines, no combinations, no small wins ticking the balance along - four gold coins can sit there glowing with values printed across them and the spin still ends at zero. Fill the middle row with four symbols and the Bonus Game starts, and that round is the entire game.

Three cartoon volcanoes sit on the rail above the grid, one blue, one red, one green, and they are the second idea. Coloured markers ride in on landing symbols and fly off to the matching peak. Blue arms Grow, which pushes the field from 4x3 to 4x5 and unlocks the ULTIMATE jackpot. Red arms Multi, scattering x2 to x12 across random cells. Green arms Extra, which is one more bonus spin and nothing else.

RTP is 96.03%, and the ceiling is 4,970.4x. That sits well above ULTIMATE's 2,000x, because a cell multiplier will happily land on top of a jackpot.

Theme & Design

The setting is cold for a volcano game. A bare grid of alternating deep-blue and lava-red stone tiles hangs in a blue mountain valley, jagged peaks either side, thin orange rivers threading the ground far below. Symbols are heavy gold coins with silver rims, each stamped with its cash value in red, joined by cracked purple Mystic orbs and hotter red-orange Mystic Jackpot ones. The Collector is an orange lava swirl. Down the left rail five jackpot plaques stack up in magenta, blue, green, red and gold, and they never move.

Then the bonus hits and the whole valley catches fire. The sky goes molten orange, the grid frame turns gold, two rows shove out above and below, and a small counter starts tracking your way to twenty symbols. That flip is the one moment the game looks like an event, and it lands. The rest of the time the board is close to empty, with no card royals, no fruit and no character anywhere, which is honest to the design but thin to sit in front of. Evoplay has been here before with Hot Volcano, though that one is a conventional reel slot and shares nothing beyond the subject matter.

Symbols & Paytable

SymbolPayout
Bonus coin0.2x / 0.4x / 0.6x / 1x / 1.2x / 1.4x / 2x / 3x / 4x total betvalue drawn at random each time it lands
Sticky Bonus coin5x / 6x / 7x / 8x total betstays on the reels in the main game until a Bonus Game starts
Jackpot Bonus coin10x MINI / 20x MINOR / 50x MAJORpays only inside the Bonus Game
Collectorno value of its owntakes every value and jackpot on the reels, other Collectors excluded
Mystic orbresolves into a Bonus, Jackpot Bonus or Collectoropens at the end of the round
Mystic Jackpot orbresolves into MINI, MINOR or MAJORa jackpot tier is guaranteed

Features & How They Work

Bonus Game

Four symbols of any type landing on the middle row triggers it. The middle row filled, that is all - not a scatter count, not a combination. Everything on the reels at that moment locks, and so does everything that lands afterwards. The round starts with three spins and the counter resets to three each time a new symbol arrives, so it ends only when the spins finally run out or every position is occupied. This is a hold and win round and a strict one, since nothing pays along the way. At the finish Mystic symbols open one at a time, Collectors sweep, cell multipliers are applied, and the values of everything on the board are added up and paid as a single total.

Grow, Multi and Extra

Boosters come from the coloured markers. In the main game a marker only counts if it lands on a middle-row symbol; inside the bonus it can arrive anywhere, and it will switch on a booster that was not running when the round began. Grow adds two rows, turning 4x3 into 4x5, and makes ULTIMATE reachable. Multi drops multipliers of x2 to x12 onto random positions on its first activation, then either adds new ones or raises what is already there, all of it applied at the end to values and jackpots alike. Extra runs the round on four spins rather than three, at the start and on every reset.

Sticky coins, Collectors and Mystic orbs

A Sticky Bonus coin carries 5x to 8x and holds its position through main-game spins until a bonus begins, which is the one thing that makes the base game worth watching. Two things kill it: changing your bet wipes any that are held, and a bought round does not include them. Collectors have no value of their own and instead take every value and jackpot on the board, other Collectors aside, then sit tight for the rest of the round. Mystic orbs resolve into a Bonus, Jackpot Bonus or Collector at the end, and Mystic Jackpot orbs guarantee one of the three lower jackpot tiers.

Five fixed jackpots

MINI 10x, MINOR 20x and MAJOR 50x arrive on Jackpot Bonus and Mystic Jackpot symbols. GRAND is 500x for filling all twelve positions on the standard field. ULTIMATE is 2,000x for filling all twenty on the expanded one, which means it exists only while Grow is running - on a normal field GRAND is the top prize on the board. All five are fixed multiples of your bet rather than progressives, the meters never climb, and none of them pays outside the Bonus Game.

Bonus Buy

Two prices, and the pricing is odd. 38x total bet gets the Bonus Game with one to three random boosters at 96.00% RTP, which is fractionally worse than simply spinning. 64x gets all three boosters at 96.23%, the best return the game has anywhere. So the expensive bonus buy is also the mathematically better one, which is not how this usually goes. A bought round guarantees the trigger, and any Sticky Bonus coins sitting on your reels are left behind.

How 3 Super Volcanoes Plays

Main-game spins are waiting, and the game does not pretend otherwise. Coins land with numbers on them, the balance stays put, and what you are actually watching is the top rail: which volcano lit up, whether a marker found the middle row, whether a sticky coin has parked itself somewhere useful. Long flat stretches, then everything at once.

Inside the bonus the rhythm flips hard. A round either stalls in the first couple of spins or keeps feeding itself, and you can usually tell which by spin two. On the standard field there are only twelve cells, so even the good runs finish quickly by running out of board. With Grow going there are twenty, the counter keeps score in the corner, and the round has somewhere to climb.

One quirk worth knowing: the total stays hidden until the end. You end up adding the coins yourself while the board fills, and the number that finally arrives is often smaller than the pile looked, which is probably the truest description of how a bonus-only game feels from the inside.

Pros & Cons

Pros

  • Everything locks and the spin counter resets on each new symbol, so a hot round builds momentum fast
  • Grow's jump to 4x5 gives the top end a visible target you can watch fill
  • The 64x buy has the best RTP in the game at 96.23%
  • Sticky Bonus coins hold 5x to 8x across main-game spins

Cons

  • The base game returns nothing at all, so dry runs pay back literally zero
  • No volatility figure is published anywhere
  • The cheaper 38x buy at 96.00% is worse value than just spinning
  • A bonus with no boosters is twelve cells and a GRAND ceiling, and it happens often

Is 3 Super Volcanoes Worth Playing?

7/10

For a game this small the design holds together. One round matters, three volcanoes decide how good that round is allowed to get, and the expansion to twenty cells gives the top end a shape you can follow while it fills. Multipliers stacking onto jackpots is what lifts the cap past ULTIMATE, and that is a smarter piece of math than the cartoon presentation suggests.

What it lacks is anything to do between bonuses. No volatility number has been published, but the shape speaks plainly enough: flat stretches, then one payout that has to cover them. At 0.10 minimum the waiting is cheap, though a bonus that starts with nothing armed is a limp round, and the 38x buy pricing does the player no favours at all.

Frequently Asked Questions

What is the max win in 3 Super Volcanoes?

4,970.4x your total bet. That is higher than the ULTIMATE jackpot at 2,000x because Multi's cell multipliers, up to x12, are applied on top of jackpot values at the end of the round.

How do you trigger the Bonus Game?

Four symbols of any type have to land on the middle row, filling it. There is no scatter count involved. You can also buy the round outright for 38x or 64x your bet.

What is the RTP of 3 Super Volcanoes?

96.03% in normal play. The 38x buy runs at 96.00% and the 64x all-boosters buy at 96.23%, making the expensive option the highest RTP available.

How much are the jackpots worth?

MINI 10x, MINOR 20x, MAJOR 50x, GRAND 500x for twelve symbols on the standard field and ULTIMATE 2,000x for twenty on the expanded 4x5 field. All are fixed bet multiples and all pay only inside the Bonus Game.

Can you play 3 Super Volcanoes for free, and what age do you need to be?

The demo runs with play money and no registration, so you can test the bonus without staking anything. Real-money play is 18+, or 21+ in some jurisdictions. Set a deposit limit before you start and treat a bonus-only game's flat stretches as the cost of entry, not a signal to chase.
Arina

Reviewed by Arina, PR & Content Manager

PR & Content Manager at SlotsReach

Published 5 Aug 2026 · Updated 5 Aug 2026