Heartburst ™ – Review, Bonuses, Free Spins, Free Play in Demo Mode

Heartburst is an Eyecon-developed online slot game with five reels, four rows and 100 fixed betways. The RTP is pegged at 95.63%, the variance level is high while features include scatters, free spins and a gamble option.

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How about spicing up your life? It’s not just another fruit-themed slot. Think of the fruit machines you played as a child but then make them better by incorporating modern technology into them and that is what Heartburst is all about.

The lucky seven, the bell, and the bar, remind you of all the bonus features and icons you used to know.

At Slots Temple, you can play this game for free in the demo version, which we advise you to try before deciding whether to play it for real money at an online casino.

Heartburst ™ - Free Play in Demo Mode

Dive into the world of Heartburst ™ and enjoy our exclusive Free Play in Demo mode. You can try this exciting slot without spending money to see how it works, explore its paylines, features and bonus rounds at no risk. Find your strategy in Demo mode, comprehend game mechanics and define a winning betting system for your future play. Unlock the excitement without spending a dime as you engage in Free Play, immersing yourself in the entertaining universe of Heartburst ™.Discover the game's unique mechanics, visualize potential winning combinations, and master your gameplay strategy—all in a no-risk environment. Try your luck in Demo mode today and prepare for an exhilarating gaming experience when you're ready to make a splash with real wagers.

Theme, graphics & soundtrack

Here, the fruits are portrayed in a present-day and sapid graphic style that does not go far to taint the nostalgic mood. Moreover, there is a throwback feel to these playing cards using red yellow and green colours often found in land-based slot machines with some added elegance.   If you have ever tasted Cadbury’s Dairy Milk chocolate, do you notice any similarities between it and this silky violet backdrop? Because if not, you may want to consider thinking about fruits instead of food preparation whilst playing this game.

This romance slot is made sweet with visuals of expanding hearts.

The music keeps up with the retro theme, though it is not a synthesized replication of jollies from the seaside front. This is a completely produced synthwave piece that might as well have been played on the soundtrack of such vintage films as Beverly Hills Cop or Mannequin. When you start playing the reels, it gets messy because it does not match with sound effect from games at all. Well, if you don’t like that, there’s always an option to switch it off although this option is quite disappointing given that this is one of the best bits about this game for me.


Heartburst RTP & volatility

Heartburst’s RTP stands at 95.63% which means that it is a highly volatile slot, with fewer and more infrequent wins to be made by players.

How to play Heartburst

Firstly, click or tap on the question mark sign located at the right bottom of your panel to see the rules and paytable. The top part of the screen displays your credit bet and win totals.

2. To select the number of lines you wish to play and the betting value per line, click on the stacked coins icon on the bottom panel on the left side and set them between 0.01 to 0.50 per line and from 1 to 100 respectively.

Click hold the light blue play button at the bottom panel’s right and adjust to either 10, 20, 50 or 100 for an autoplay game.

4. You can begin by clicking or tapping the central blue play button.

Bet sizes & paytable wins

The least amount of money you can put on Heartburst is $0.01, and the maximum bet is $50.

The payouts for five, four and three similar symbols on a single line are as listed below:

Lucky seven

– Five equals three hundred and twenty five no cost rings – Four is fifteen and twenty free spins – Three is equal to five with fifteen free spins


– 5 = 3,000
– 4 = 500
– 3 = 50


– 5 = 2,000
– 4 = 300
– 3 = 30

Cherries, grapes

– 5 = 1,000
– 4 = 100
– 3 = 10

Orange, watermelon

– 5 = 500
– 4 = 10
– 3 = 5

Lemon, ace

– 5 = 200
– 4 = 25
– 3 = 5

King, queen, jack

– 5 = 100
– 4 = 10
– 3 = 3

Max-win 3,000x
Volatility High
Top RTP 95.63%

Heartburst bonus features

– Scatter

Our blurred childhood dreams of old fruit machines were characterized by the lucky seven that now serves as the game’s scatter symbol; once you hit three, four or five lucky sevens anywhere on the reels, there will be 15, 20 or 25 free games respectively. In addition to this it can also be retriggered for fifteen times.

– Heart substitute

This symbol is a bit of a charmer, appearing rightly on the first, third and fifth reels and can only substitute the lucky Seven. It may expand to take up all positions on its reel prior to winning combos being paid out. When there is a line win with the heart symbol, the prize triples.

– Gamble bonus

In such a case, if you get it right between two choices after doubling the last win, you will be paid with double the amount of your winnings. This goes on until ‘take win’ is selected or five correct selections are made.

Our verdict

Who could resist being seduced by a classic slot machine? The warm smell of sugary doughnuts and cotton candy is almost palpable; but don’t get too excited with this sugar overdose. Heartburst is a high-volatility game and can be deceptive for beginners in online casinos. Even professional gamblers may consider using the “loss limit” option when playing on auto mode.

Let us not be overly pessimistic but how many of the old-school slots allowed you to retrigger free spins up to fifteen times? Eyecon has managed pretty well in upgrading a classic game with Heartburst – just ensure that your head emulates rather than your heart.

If you love this game, then you must also try the Tweethearts slot.


Warning: Eyecon owns the Heartburst trademark and license. Eyecon did not support this website.


What is the RTP of Heartburst?

On average, over the long haul, there is an expected payout of 95.63%. Keep in mind that this number is an amalgamation, so individual experiences can vary.

How volatile is Heartburst?

This Eyecon slot demo is categorized as a high volatility slot.

What is the biggest win available on Heartburst?

The max win of this game is 3,000x.

Is there a free spins round in Heartburst?

Certainly, you may rely upon your lucky seven to grant you free spins. You can win up to 25 free spins with this scatter symbol when it appears anywhere on the reels and even retrigger them for an enormous 15 times!

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