Heartburst is an online slot game that has been developed by the gaming provider Eyecon. The game has a 5x4 reel platform, and has 100 different paylines, meaning there are plenty of different ways you could win. There is a default bet of 1 credit per line in this slot, and if your luck is in you could trigger the Free Games bonus. This is set off when 3 or more Lucky 7 symbols are found on the reels.

How To Play Heartburst Slot - Buttons

Total Bet

To edit your total bet amount in the Heartburst slot, click on the stack of coins logo and select the bet amount you wish to wager for the next spin.


Start a game of Heartburst by clicking on the two white arrows forming a circle, which acts as the spin button. This will play through one whole spin. Press the button again to start another full spin.


Use Autoplay to your advantage in the Heartburst slot game in order to play through a specified number of spins at the current bet amount.


If you need any help when playing the Heartburst slot game, simply click on the ‘?’ button to bring up more in depth information.

Heartburst Slot Bonus Features

Free Games Feature

In order to trigger the Free Games bonus feature in the Heartburst slot, you will need to land 3 or more Lucky 7 symbols. This can occur in the base game, and you can also retrigger the Free Games while in the bonus round itself. How many Free Games you receive depends on how many Lucky 7 symbols you find at any one time.

3 Symbols - 15 Free Games 4 Symbols - 20 Free Games 5 Symbols - 25 Free Games

Substitute Symbol

Another of the special features in the Heartburst slot game is the Heart symbol, which can substitute for any symbol other than the Lucky 7. This is relevant for reels 1, 3 and 5. When they are found, the Heart symbols will be expand and fill the reel they are on before any wins will be credited. Prizes are tripled when a Heart symbol substitutes for another symbol as part of a winning line. Will the Heart symbols show up for you in Heartburst?

UK Casino Verdict

UK Casino provide a number of classic slot games, and Heartburst is another along those lines. Old school slot players should really appreciate this online casino offering, as the nostalgic symbols of Fruit, Bar’s, 7’s and more are a real throwback to slot machines of the past. If you’re lucky, the Free Games bonus round could also provide a number of chances to win. If you’re after another great title from Eyecon, check out the elephant themed slot Stampede.