Flame Busters

Excellent 9.4 / 10

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Flame Busters Free Demo Play

Roasty McFry and the Flame Busters, that’s the name of this online slot machine from Thunderkick. In this review, we’ll stick to Flame Busters.

It is a typical Thunderkick video slot – it is different, unique and above all: a lot of fun. Fans of the old Sega and Nintendo video consoles will immediately recognize the 16 bit style, it gives this slot machine a wonderfully melancholic atmosphere.

The Best Online Casinos & Bonuses to Play Flame Busters for Real Money

Flame Busters - Slot Review

As soon as you open the game, you immediately get the feeling that you have landed in the middle of a classic video game, complete with pixel graphics, hysterical tunes and funny animations. That promises something!

The main character in the game is Roasty McFry, a tough firefighter in a cool yellow outfit. Together with his companions from the fire brigade, he goes out to put out fires. Armed with large fire hoses, the men risk life and limb to extinguish those ferocious flames – and rake in a lot of money for you.

Graphically and musically, Flame Busters is just fantastic. The atmosphere that is created could just look like a real video game and you can see that a lot of love and time has been put into this slot machine. As soon as an extinguishing job arrives, you see, for example, the firefighters become visibly enthusiastic. There are also burning flakes of fire whirling through the air and the final animation of the bonus round is really hilarious.

The background music is also exactly what you expect from this type of game: cheerful and slightly hysterical. It all clearly increases the fun.

Flame Busters

Fire symbols act as mystery symbols.

243 ways to win

Flame Busters has no fixed paylines to work with the “Win all ways” mechanism. There are 243 ways to win and it doesn’t matter where symbols fall on the reels, as long as they appear consecutively on the screen from left to right.

You pay a fixed amount per spin, where the minimum bet is $0.10 per spin and you can bet a maximum of $100 per spin. Thunderkick always thinks of the smaller players: all their titles have low minimum bets by default.

Flame Busters has a medium-high variance and a payout percentage of 96.1%. We can live with both.

Symbols and payouts

Because this slot works with 243 ways to win, the symbols stacked are also wilds, the payouts for 5 of the same symbols are relatively low.

5 Roasty Mcfry symbols pay out 10x the bet. The remaining premium symbols are good for a payout between 5x and 3x by 5 the same. The coins are the low symbols and pay out between 2 x and 1.5 x the bet.

PROs & CONs of Flame Busters


  • Win up to 20 free games
  • Mystery symbols
  • Wide betting range


  • We found none

Wild symbol

The “W” symbol acts as a Wild Symbol and replaces all other symbols except the scatter symbol.

Fire symbol

A very important role is reserved for the Fire Symbol: when this symbol falls, it turns into a mystery symbol. This symbol can consist of any symbol except the Wild symbol and the Scatter symbol. Since this Fire Symbol occurs in stacks. it can help you a lot to grab those fat payouts.

The bonus features of Flame Busters

You can win two different bonus features with this cool slot machine: a free spins bonus and a mini feature.

The Fire Drill Bonus

This mini bonus can fall randomly for every spin. Then the alarm siren starts blaring and 2 things can happen. Sometimes it is a false alarm and the fire hoses can be stored again. It is better if the bonus is indeed activated. Then a minimum of 1 and a maximum of 5 of the lowest symbols are changed into a Fire Symbol. The more coins that turn into a Fire Symbol, the higher the chance of a nice payout.

The Free Spins Bonus: up to 20 free spins with extra Fire symbols

When 3 or more scattered Fire Alarm symbols appear on the screen, you have won the free spins bonus:

  • 3 scatters = 10 free spins
  • 4 scatters = 15 free spins
  • 5 scatters = 20 free spins

But you don’t just get free spins. The nice thing about this bonus is that you will save Fire Alarm symbols during the free spins.

For every 3 scatters saved you get 2 extra free spins. In addition, 1 of the low symbols turns into a Fire symbol and that remains the case for the rest of the free spins. The more Fire symbols you unlock, the greater the chance of huge payouts.

This bonus round can be hugely lucrative (if you manage to save a lot of scatters), but also hugely frustrating. Sometimes you easily win 100 x or 150 x your bet and sometimes this bonus comes to no more than 5 x your bet. Or worse, at zero.


Flame Busters compared to 4 other Thunderkick slots

Slot nameRTPBetting optionsMax. winBonus
Flame Busters96%0.10-10010,000xFree Spin + mystery symbols
Phoenix Paradise96.1%0.10-10010,000xFree Spins + respins
Shifting Seas96.1%0.10-10015,000xFree Spins + multipliers
Divine Lotus96.1%0.10-10010,000xFree Spins + mystery symbols
Sword of Khans96.1%0.10-10010,000xFree Spins + expanding symbols

What do we think of Flame Busters?

Flame Busters is one of the most fun online slots ever made. That’s our opinion and you’ll have to make do with that.

We love the old generation of video games and then of course this slot machine fits right in our street.

But above all: apart from the fun theme and the perfect execution of it, Flame Busters is also an ingenious slot machine. Due to the savings function during the free spins and the Fire symbols, very nice payouts can arise and that therefore provides a lot of variety and excitement.

Thunderkick is a casino games maker who surprises us time and time again with original titles and unique game concepts and Flame Busters is among their best work.


Yes, bonuses are to discover in this game, access the game to know them all!

Developer: Thunderkick
Number of rolls: 5
Number of lines: 243
Bet: from 0.10 to 100.00

Visit the Flame Busters game page. This game is accessible for free and without download in demo mode directly on your browser, for convenience, activate full screen mode.

Yes, click on the game page to test it in demo on your mobile or tablet.

Software Thunderkick
Slot Types Video Slots
Reels 5x3
Paylines 243
Slot Game Features Free Spins, Scatters, Wild Symbol
Min. Bet 0.10
Max. Bet 100
Slot Themes Action
Slot RTP 96.1%
devices Mobile versionTablet versionDesktop version
Flame Busters Slot by Thunderkick

Game Winnings and Payouts

Flame Busters Fireman Symbol

x5 = 10.00

x4 = 2.00

x3 = 1.50

Flame Busters Wizard Symbol

x5 = 5.00

x4 = 1.50

x3 = 1.00

Flame Busters Monkey Symbol

x5 = 4.50

x4 = 1.50

x3 = 1.00

Flame Busters Robot Symbol

x5 = 3.50

x4 = 1.00

x3 = 0.70

Flame Busters Goat Symbol

x5 = 3.00

x4 = 1.00

x3 = 0.70

Flame Busters Ace Symbol

x5 = 2.00

x4 = 0.70

x3 = 0.50

Flame Busters King Symbol

x5 = 1.80

x4 = 0.60

x3 = 0.40

Flame Busters Queen Symbol

x5 = 1.70

x4 = 0.60

x3 = 0.40

Flame Busters Jack Symbol

x5 = 1.60

x4 = 0.50

x3 = 0.30

Flame Busters T Symbol

x5 = 1.50

x4 = 0.50

x3 = 0.30


About the author

Kate Ko

Kate Ko / Games editor

last updated

Kate joined CorrectCasinos' game team in the late 2021. She's here to find and review all new and upcoming slots titles, so you can just enjoy their free play.

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