What is the RTP of 3 Super Volcanoes?

The rules list 96.03% for normal play, 96.00% for the Bonus Buy with 1 to 3 random boosters and 96.23% for the Bonus Buy with all 3 boosters.

How do you trigger the Bonus Game?

Land 4 symbols of any type on the middle row. Coloured markers on those symbols decide which of the Extra, Multi and Grow boosters start active.

How much does the Bonus Buy cost?

The Bonus Game with 1 to 3 random boosters costs 38x the total bet. The Bonus Game with all 3 boosters costs 64x the total bet.

How do you win the ULTIMATE prize?

ULTIMATE pays 2000x the bet. You need the Grow booster active and all 20 positions of the 4x5 field filled with symbols.

Are there any wins in the main game?

No. The rules state that there are no regular wins in the main game. All symbol wins are paid only during the Bonus Game.

Can I play 3 Super Volcanoes for free in Canada?

Yes. The 3 Super Volcanoes demo on CasinoDemo is free, needs no sign-up and uses virtual credits only.

3 Super Volcanoes Guide: Rules, Grow, Multi and Extra Boosters

By the CasinoDemo editorial team · Updated 2026-11-09 · How we review

3 Super Volcanoes is an Evoplay hold-and-win style slot on a 4-reel, 3-row grid. There are no regular paying symbols at all. Every symbol is special, nothing pays in the main game, and all the money is made in the Bonus Game, which starts when 4 symbols of any type land on the middle row.

The twist is three coloured volcanoes above the reels. Blue, red and green markers on landing symbols wake up the Grow, Multi and Extra boosters, which change how the Bonus Game plays. We read the full rules in the demo, bought both Bonus Buy options and played each round to the end. Here is what the game says and what we saw.

Play 3 Super Volcanoes demo for free

3 Super Volcanoes at a glance

Provider: Evoplay
Demo: Free, no sign-up

How 3 Super Volcanoes works

The grid is 4 reels by 3 rows. The rules say it plainly: there are no regular wins in the main game, and winnings from symbols are awarded only during the Bonus Game. Four symbols of any type landing on the middle row trigger it.

Any symbol can land with a Green, Red or Blue marker. In the main game a coloured marker can only appear on symbols that land on the middle row. Each marker flies to the volcano of the same colour and leaves the symbol in place. The markers on the triggering spin decide which boosters are active when the Bonus Game starts.

The opening screen sums the boosters up: Grow gives a 4x5 grid with the Ultimate prize, Multi brings multipliers up to x12, and Extra adds bonus spins. It also advertises wins of over 4,900x.

3 Super Volcanoes base game 4x3 grid with coin symbols, a Mystic Treasure and the Grow, Multi and Extra volcanoes — The base game: coins and a Mystic Treasure, with the three volcanoes above the reels.

Special symbols

The game lists six special symbols.

Bonus symbols carry random values of 0.2x, 0.4x, 0.6x, 1x, 1.2x, 1.4x, 2x, 3x or 4x the bet, shown as money. Sticky Bonus symbols that appear in the main game stay on the reels until the Bonus Game starts and carry 5x, 6x, 7x or 8x the bet. Changing your bet removes any Sticky Bonus symbols currently on the reels, so think before you touch the bet button.

Treasure Bonus symbols hold the MINI, MINOR or MAJOR prize. The Collector has no value of its own; each time one lands in the Bonus Game it collects the values and prizes from all symbols on the reels, except other Collectors, and then stays put until the end.

Mystic symbols turn into a Bonus, Treasure Bonus or Collector at the end of the Bonus Game. A Mystic Treasure is guaranteed to hold MINI, MINOR or MAJOR. They open one by one when the feature finishes.

The Bonus Game

The Bonus Game starts with 3 spins, and every new symbol that lands resets the counter to 3. All symbols on the reels at the trigger, and every symbol that lands later, stay until the feature ends. It finishes when the spins run out or every position is filled. Then the values of all symbols are added together and paid. During the Bonus Game, markers can land on symbols in any position and can switch on boosters that were not active at the start.

There are five fixed prizes:

ULTIMATE pays 2000x bet, GRAND 500x, MAJOR 50x, MINOR 20x and MINI 10x. GRAND needs all 12 positions filled on the standard 4x3 field. ULTIMATE needs all 20 positions filled on the 4x5 field, so it is only possible with Grow active.

The three volcano boosters

Extra (green): the Bonus Game is played with 4 spins instead of 3. That one extra spin on every reset matters more than it sounds, since the round only ends after a full run of empty spins.

Multi (red): on first activation, random reel positions get multipliers from x2 to x12. Later activations can add multipliers to new positions or raise existing ones. They stay until the end and are applied to the values and prizes sitting on those positions.

Grow (blue): the field expands from 4x3 to 4x5 by adding two rows, and the ULTIMATE prize becomes available.

3 Super Volcanoes Bonus Game on the 4x5 grid with x2 and x3 multipliers on reel positions from the Multi booster — All three boosters live: 4x5 grid, multipliers on positions and 4 spins per reset.

Bonus Buy options

The Bonus Buy menu has two choices. Bonus Game with 1 to 3 random boosters costs 38x the total bet (RTP 96.00%). Bonus Game with all 3 boosters costs 64x (RTP 96.23%). After buying, at least 4 symbols with coloured markers are guaranteed on the middle row. Sticky Bonus symbols on the reels are not carried into a bought Bonus Game, and the buy only works from the main game.

Random boosters: we paid 380 demo credits at a 10 bet. The trigger handed us Grow only, so the grid unlocked to 4x5 with 3 spins per reset. We filled 10 of the 20 positions, and a Collector already on the reels collected the coin values. A Mystic Treasure opened at the end. The round paid 402, about 40x the bet. One round, not an average.

All 3 boosters: we paid 640 at the same 10 bet. The intro screen showed multipliers, 4 spins and the 4x5 grid all unlocked. The board filled to 16 of 20 positions with x2 and x3 multipliers scattered around, but it stopped short of the ULTIMATE. The round paid 220, about 22x the bet, less than the 64x price. Again, a single round tells you nothing about long-run returns.

3 Super Volcanoes Bonus Buy menu showing All 3 Boosters for 640 and Up to 3 Boosters for 380 at a 10 bet — Bonus Buy at a 10 bet: 640 for all 3 boosters, 380 for random boosters.

3 Super Volcanoes Grow booster screen announcing the 4x5 grid and Ultimate Treasure 2000x — Our random-booster buy landed Grow only.

3 Super Volcanoes Bonus Game on the expanded 4x5 grid with coins, a Collector and Mystic Treasure symbols — Grow in action: 4x5 grid with a Collector on the middle row.

3 Super Volcanoes base game after the random booster buy showing a win of 402 at a 10 bet — Random-booster buy result: 402 on a 10 bet.

3 Super Volcanoes Bonus Game intro with Multi, Extra and Grow boosters all unlocked — The 64x buy starts with all three boosters active.

3 Super Volcanoes base game after the all boosters buy showing a win of 220 at a 10 bet — All-boosters buy result: 220 on a 10 bet.

RTP, max win and bet range

The rules list three RTP figures: 96.03% in normal mode, 96.00% for the random-booster buy and 96.23% for the all-boosters buy. The all-boosters buy has the highest listed return of the three, for what that is worth over a very large number of rounds.

The game's splash screen promises wins of over 4,900x. Top prizes are the fixed ULTIMATE at 2000x and GRAND at 500x, before any Multi multipliers. The demo's rules give a minimum bet of 0.10 and a maximum of 10,000 in demo credits; the demo opened at a bet of 10.

Our verdict

3 Super Volcanoes strips the hold-and-win idea down to its core. Nothing pays in the base game, so every spin is really a lottery ticket for the Bonus Game, and the volcanoes decide how good that bonus will be. We like that the boosters are easy to read: Extra for longer rounds, Multi for bigger values, Grow for the 2000x ULTIMATE. The 64x all-boosters buy has the best listed RTP, but our one round on it returned only 22x, which shows how swingy a game with no base-game wins can be. Try it in the demo first and watch how often the triggers come.

How to play 3 Super Volcanoes free in Canada

Press Play demo for free on the game page and the Evoplay demo loads with virtual credits. There is nothing to download, no account to create and no deposit to make, and it works in your browser on desktop and mobile.

Demo credits have no cash value, so you can test bet sizes, trigger the features and learn the paytable without risking anything.

Playing 3 Super Volcanoes for real money in Canada

Real-money online gambling in Canada is regulated province by province. Ontario runs a regulated market where licensed operators are overseen by iGaming Ontario and the AGCO; other provinces offer play through their own provincial sites, such as PlayNow (British Columbia, Manitoba and Saskatchewan), Loto-Québec, PlayAlberta and ALC in Atlantic Canada.

The legal age is 19 in most provinces and 18 in Alberta, Manitoba and Quebec. Only play at sites licensed where you live, set limits before you start, and treat gambling as entertainment, never as a way to make money.

3 Super Volcanoes FAQ

What is the RTP of 3 Super Volcanoes?: The rules list 96.03% for normal play, 96.00% for the Bonus Buy with 1 to 3 random boosters and 96.23% for the Bonus Buy with all 3 boosters.
How do you trigger the Bonus Game?: Land 4 symbols of any type on the middle row. Coloured markers on those symbols decide which of the Extra, Multi and Grow boosters start active.
How much does the Bonus Buy cost?: The Bonus Game with 1 to 3 random boosters costs 38x the total bet. The Bonus Game with all 3 boosters costs 64x the total bet.
How do you win the ULTIMATE prize?: ULTIMATE pays 2000x the bet. You need the Grow booster active and all 20 positions of the 4x5 field filled with symbols.
Are there any wins in the main game?: No. The rules state that there are no regular wins in the main game. All symbol wins are paid only during the Bonus Game.
Can I play 3 Super Volcanoes for free in Canada?: Yes. The 3 Super Volcanoes demo on CasinoDemo is free, needs no sign-up and uses virtual credits only.

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