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Agent of Hearts Slot by Play'n GO

Agent of Hearts
Agent of Hearts
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Updated: 22.07.2025
Reviewed by: Ella Houghton
Play'n Go came up with its own story based on the famous fairy tale "Alice in Wonderland". The keys to the safe with the Queen's heart have been stolen, and it is your mission to retrieve them with the agents of Wonderland. By the way, these keys are your golden ticket to the 1 spin bonus round. Sounds pretty exciting!
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18+ | New players only | Terms Apply | Please play responsibly | gamblingtherapy.org

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In this review
  1. Slot details
  2. Theme
  3. Bonus Rounds & Free Spins
  4. Summary
  5. Where to play
General information about Agent of Hearts slot

General information about Agent of Hearts slot

Rating by Ella Houghton:
8.8
User’s Rating: (based on  reviews):
0.0
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  • Release Date:
    19.08.2021
  • Volatility:
    High
  • RTP:
    96.2%
  • Multiplier:
    No
  • Max. win:
    5,262.5x
  • Bonus game:
    No
  • Free spins:
    Yes
  • Scatter Symbol:
    Yes
  • Wild symbol:
    Yes
  • Symbol Stacked:
    No
  • Jackpot Game:
    No
  • Slot lines:
    Cluster pays
  • Slot reels:
    7
  • Layout:
    7-7
  • Stakes range (€/£/$):
    0.20 to 100
  • Slot Theme:
    Gems
  • Technology:
    JS, HTML5
More infoLess info

Licensed and tested by

  • AGCO
  • BMM Testlabs
  • Gambling Comission
  • Gaming comission
  • GLI (Gaming Labs Certified)
  • HGC (Hellenic Gaming Comission)

Slot details & Wager limit

You can place a stake from €0.20 to €100 and start spinning! The cascading reel system removes all winning symbols from the playing field with an unusual 7-7-5-5-5-7-7 grid, and this allows new symbols to drop out to fill the empty spaces. You have Wild to help you make winning combinations. Cascading wins continue as long as you keep winning, and long-term wins can trigger modifiers. Sometimes for non-winning spins, you may be awarded the "Second Chance" feature. You will then receive up to 7 Wilds, and this can lead to a win that activates the cascading feature.

The 4 highest-paying symbols have a corresponding counter on the left side and thus all winning premium symbols are collected. You need 6 to fill the counter, and this gives the corresponding modifier after the cascade is complete. Cupcake Splat, Smokin 'Phat, Grinning Cat, and Mad Hat are pretty useful modifiers:

  • Cupcake Splat - Sonya runs across the board leaving a trail of cupcakes that explode to remove the underlying symbols, or they turn into a random matching symbol
  • Smokin' Phat - The Caterpillar emits 1 to 3 trails of smoke diagonally across the board and this removes or transforms affected characters
  • Grinning Cat - the smile of the Cheshire cat overlaps the playing field, transforming or removing the symbols below it
  • Mad Hat - Grants up to 9 Mad Hatter symbols. They remove adjacent symbols and convert them to randomly selected matching symbols

Agent of Hearts RTP and Volatility

8 
It has quite high volatility and its average RTP is 96.25%.
No jokes with this slot machine, as it has quite serious volatility and its average RTP is 96.25%. It rarely forms winning combinations, but they pay large sums every time. Slots with such a risk are played by gamblers who have enough time, patience, and a good bankroll.

Agent of Hearts Theme

8.6 
Apparently, the guys from Play'n Go really like fairy tales, because they've done a good job again on the Alice in Wonderland theme. They even came up with their own story to give context to the bonus features. Finding stolen keys is fun, especially when it helps trigger the Queen's Heart bonus round! The soundtrack is great too - it does its job well, filling the game with a magical atmosphere.
Agent of Hearts Theme
Highly paid symbols are the brightest characters of the famous fairy tale: The Mad Hatter pays up to 1,000x, the Cheshire Cat pays up to 125x, Caterpillar pays up to 50x and Dormouse pays up to 40x. Low-paying symbols are multi-colored gems: green pays up to 20x, purple pays up to 15x, Blue pays up to 10x and Yellow pays up to 5x.
  • Mad Hatter
    Mad Hatter
    5, 6, 7 symbols pay out 2.5, 4, 5x the stake. If you land 8 symbols, you'll get 8x the stake; for 9 symbols – 10x, 10+ symbols – 25x, 12+ symbols – 100x, and for 15 and more symbols – 1,000x the stake
  • Cheshire Cat
    Cheshire Cat
    5, 6, 7 symbols pay out 1.25, 2, 2.5x the stake. If you land 8 symbols, you'll get 4x the stake; for 9 symbols – 5x, 10+ symbols – 12.5x, 12+ symbols – 50x, and for 15 and more symbols – 125x the stake
  • Caterpillar
    Caterpillar
    5, 6, 7 symbols pay out 0.75, 1, 1.5x the stake. If you land 8 symbols, you'll get 2x the stake; for 9 symbols – 3.5x, 10+ symbols – 7.5x, 12+ symbols – 25x, and for 15 and more symbols – 50x the stake
  • Dormouse
    Dormouse
    5, 6, 7 symbols pay out 0.5, 0.75, 0.2x the stake. If you land 8 symbols, you'll get 1.5x the stake; for 9 symbols – 2.5x, 10+ symbols – 5x, 12+ symbols – 20x, and for 15 and more symbols – 40x the stake
  • Green gem
    Green gem
    5, 6, 7 symbols pay out 0.25, 0.4, 0.5x the stake. If you land 8 symbols, you'll get 0.75x the stake; for 9 symbols – 1.5x, 10+ symbols – 3x, 12+ symbols – 10x, and for 15 and more symbols – 20x the stake
  • Purple gem
    Purple gem
    5, 6, 7 symbols pay out 0.20, 0.25, 0.4x the stake. If you land 8 symbols, you'll get 0.5x the stake; for 9 symbols – 1x, 10+ symbols – 2.5x, 12+ symbols – 7.5x, and for 15 and more symbols – 15x the stake
  • Blue gem
    Blue gem
    5, 6, 7 symbols pay out 0.15, 0.2, 0.25x the stake. If you land 8 symbols, you'll get 0.4x the stake; for 9 symbols – 0.75x, 10+ symbols – 2x, 12+ symbols – 5x, and for 15 and more symbols – 10x the stake
  • Yellow gem
    Yellow gem
    5, 6, 7 symbols pay out 0.10, 0.15, 0.2x the stake. If you land 8 symbols, you'll get 0.25x the stake; for 9 symbols – 0.5x, 10+ symbols – 1.25x, 12+ symbols – 2.5x, and for 15 and more symbols – 5x the stake
  • Wild
    Wild
    triggers more cascades and winning clusters

Mobile compatibility

Mobile compatibility
This slot machine was created using modern HTML5 technology, which allows it to perfectly adapt to all mobile devices. Play anywhere on any mobile device, just don't forget to connect to the internet! Agent of Hearts is great entertainment that you can take with you whenever you want.

Bonus Rounds & Free Spins

7.9 

You need to collect 3 keys in 1 cascading sequence to open the big heart at the top of the reels. Then the Queen's Heart Bonus Round is activated, and you get 1 free spin, which unfortunately cannot be re-started. All 4 modifiers are played in turn as the cascading sequences are completed before the Random Hearts Wild is activated. This awards up to 7 Wilds before the Mega Wild Heart (3x3) appears.

Agent of Hearts - BF

Agent of Hearts Max Win

8.2 
The max win is 5,262x the stake.
This slot will not seem boring to anyone, but you should be lucky for the Bonus Round with Mega Wild Hearts (3x3) and guaranteed modifiers to unleash its potential. The max win is 5,262x the stake, which is very small for a high volatility slot.

Overall Rating

8.8
We were hoping for a greater variety of modifiers as they all just remove or transform symbols, but basically, they will be enough to get something. The Bonus Round is interesting, not least because you are guaranteed to see all the modifiers and features. With more unique modifiers, this slot could have earned the title of "top-notch", but it's just a very interesting release.
Hits
Up to 7 Wilds on non-winning spins
Four modifiers
Bonus Round with 1 free spin, with all 4 modifiers + random Wild and Mega Wild symbols
Misses
Basically, all 4 modifiers act the same (very similar)
Low max win

FAQ

What is the Most Valuable Symbol in this Slot?

The highest paying symbol is the Mad Hatter as it will pay 1,000x for a cluster of 15.

What is the Return to Player (RTP) rate of Agent of Hearts?

The average RTP of this game is 96.25%.

Can I Earn Real Cash Prizes Here?

You can win real money in this slot by launching it in the "Real Play" mode, but you need to be smart about adjusting your stakes as this is a highly volatile game.

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Ella Houghton
Ella Houghton
Expert in: News, Blog, Slot reviews, Payments
Ella is a professional content-writer with 8 years of experience in the casino sphere. She has broad knowledge of gambling related themes and is happy to share this with Slotsjudge.

2126 articles

Reviewed by Editor-in-Chief
Nikita Lukanenoks

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