| Provider | Eyecon Pty Ltd |
|---|---|
| RTP | 96.00% - Compare RTPs |
| Volatility | High |
| Reels | 5 |
| Paylines | 100 |
| Bet Range | £0.01 - £50.00 |
| Features | Wilds, Scatters |
Heart Burst is a classic fruit slot from Eyecon that strips away the noise and delivers something tight, high-volatility, and genuinely rewarding when it clicks. Built on a 5x4 grid with up to 100 paylines, it sits in the same family of punchy Eyecon releases that have been landing on UK bingo networks for years - familiar in style, but with a mechanics twist that lifts it above the standard reel-spinner.
Heart Burst Basics
The grid runs five reels and four rows. At full paylines you are covering 100 lines, which is the recommended way to play given how the wild mechanic works. RTP sits at 95.63%, volatility is high, and bet range runs from £0.01 per line up to £50 total per spin. The symbol set is pure classic fruit machine territory - cherries, lemons, oranges, watermelons, grapes, bells, bars, and sevens fill the reels alongside the card royals from Jack to Ace.
The game was built by Eyecon, a developer operating since 1997 and responsible for a catalogue that includes Fluffy Favourites, Temple of Isis, and a run of titles that have become fixtures on UK bingo sites. Heart Burst follows that same production ethos: clean, functional, no unnecessary clutter.
The Wild and Why It Matters
The Heart symbol is the wild, and it only lands on reels 1, 3, and 5. When it does, it expands to fill that entire reel before wins are calculated. That expansion covers all four rows on whichever reel it lands, and crucially it applies a 3x multiplier to any winning combination it contributes to.
On its own, one expanded wild reel tripling a line win is a solid event. Two expanded wild reels on the same spin multiplies the impact considerably. If all three wild reels - 1, 3, and 5 - expand simultaneously, you are looking at the ceiling payout condition for this game. With 100 paylines and three fully-covered wild reels, the multiplier effect across multiple lines can produce the session-defining hits that make high-volatility play worthwhile.
The mechanic is simple to understand but creates genuine excitement because expanded wilds are visible across the whole reel height before the win calculation resolves. You can see the potential on screen before the numbers come in.
Free Spins
The Lucky 7 is the scatter symbol. Land three or more anywhere on the reels and you trigger the free spins round. Three scatters pays out 15 free games, four gives you 20, and five scatters awards 25 free spins.
The round is retriggerable. Additional scatters during free spins add a further 15 free games per trigger, and you can retrigger multiple times throughout the session. In theory the retrigger chain could extend the round significantly, though in practice the high volatility means session outcomes vary considerably.
During free spins the wild mechanics operate identically to the base game - Heart wilds still expand and still apply the 3x multiplier. This is where the biggest wins tend to cluster, since the reel-filling wild combined with a zero-cost spin creates maximum value from each expansion event.
Gamble Feature
After any base game win, Heart Burst offers a standard gamble option. You can risk the win in an attempt to double it, with up to five consecutive gambles available before the feature locks out. The gamble is a 50/50 call - correct guess doubles the win, wrong guess loses it. It is entirely optional and has no bearing on the free spins or wild mechanics.
Playing on Mobile
Heart Burst runs on HTML5 and scales to any screen size. The grid translates cleanly to portrait and landscape on phone and tablet. The expanded wild animation reads clearly on a small screen, which matters because that visual cue is the core of how the game communicates potential wins to the player. Controls are touch-optimised, autoplay runs up to 100 spins, and the game behaves consistently across Android and iOS.
Who Is Heart Burst For?
If you like classic fruit machine aesthetics but want a mechanic with more depth than a straight reel-spinner, Heart Burst delivers. The 5x4 grid and 100-payline setup gives it more coverage than a traditional 3x5 fruit machine, while the expanding wild with multiplier pushes the top-end wins into proper high-volatility territory.
The high volatility means bankroll management matters. Sessions can be dry between significant wild events, and the free spins trigger frequency is not constant. Players looking for frequent small returns will find the variance uncomfortable. Players happy to work through base game sessions waiting for the triple-reel wild expansion or the free spins trigger will find the reward structure satisfying when it lands.
The 95.63% RTP is slightly below the commonly cited 96% threshold for competitive online slots, which is worth knowing. It is not a dealbreaker for a high-variance game where individual session outcomes deviate significantly from theoretical long-run return, but it is worth factoring into expectations.
Who made Heart Burst?
Heart Burst was developed by Eyecon, an Australian studio with roots going back to 1997. Eyecon is best known for titles such as Fluffy Favourites and Temple of Isis, and has a long-standing presence on UK bingo networks.
What is the RTP for Heart Burst?
Heart Burst has a certified RTP of 95.63%. This is the theoretical long-run return percentage and represents how much the game pays back over a very large number of spins.
How does the wild symbol work in Heart Burst?
The Heart wild only appears on reels 1, 3, and 5. When it lands, it expands to fill the entire reel before any wins are calculated, and it applies a 3x multiplier to every winning line it contributes to. If all three eligible reels expand simultaneously, the result is the game's maximum payout condition.
How do you trigger free spins in Heart Burst?
Three or more Lucky 7 scatter symbols anywhere on the reels trigger the free spins round. Three scatters awards 15 free games, four gives 20, and five awards 25. The round can be retriggered by landing additional scatters during the free spins, adding 15 games per retrigger.
Is Heart Burst high or low volatility?
Heart Burst is a high volatility slot. That means wins tend to be less frequent but larger when they do land. Sessions can be dry between significant wild events or free spins triggers, so it suits players comfortable with variance.
Can I play Heart Burst on mobile?
Yes. Heart Burst is built in HTML5 and plays on any modern smartphone or tablet, covering both Android and iOS. The grid and expanded wild animations scale well to smaller screens in both portrait and landscape orientation.
Where to Play Heart Burst
We're currently updating our casino list for Heart Burst. In the meantime, browse our full casino reviews or check out current free spins offers.
Heart Burst RTP and Variance
Heart Burst has an RTP of 96.00%, which is above average. See our highest RTP slots for the best returning games. High volatility means wins come less often but tend to be significantly larger. Explore our high volatility slots guide.
At the minimum bet of £0.01 per spin, a £10 deposit gives you 1,000 spins with a statistical expected return of £9.60. Read our slot betting strategy guide for tips on managing your bankroll.
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