Agent of Hearts Slot Review

Play ‘n GO is inviting players on another trip to Wonderland in the Agent of Hearts slot. Based on Lewis Carroll’s surreal stories, it’s a 7 reel, Cluster Pays, symbol drop game. The gameplay is as unusual as the theme. Collect character symbols by landing then in winning combinations to unlock 4 Agent features.  The other main bonus is the Queen’s Heart Free Spin feature where the 4 Agent features play out in turn. Look out too for random wilds that can appear in the base game following any winless spin. Find out more about this volatile slot in our detailed Agent of Hearts review.

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Agent of Hearts Slot RTP, Details & Wager Limits

The Agent of Hearts slot is played on a 7 reel grid that is 7x7x5x5x5x7x7 rows high. Winning combinations are formed by landing clusters of 5 or more matching symbols.

Bet levels here range from between 20p and £100 per spin. With 5 available stakes showing below the reels, use the plus and minus buttons to adjust accordingly. There’s also a lightning bolt icon for Turbo Mode and an Autoplay function. Both these 2 extras may not be available in your country.

The Agent of Hearts RTP is 96.25% which is slightly better than average. The variance here isn’t quite as high as some in the Play ‘n GO catalogue but with volatility of around 8 out of 10, it can still pack a punch. The maximum win is 5,262.5 x your total stake from a single spin.

Theme – Audio & Design Features – join the Mad Hatter and friends  


The Agent of Hearts slot is the 3rd slot from the Rabbit Hole Riches series following Rabbit Hole Riches and Court of Hearts. Based on Lewis Carroll’s Alice’s Adventures in Wonderland novel, the back story here is that the Queen of Hearts keeps her heart under lock and key to protect the wealth of Wonderland.

Unfortunately, someone has pinched it and it’s the job of you and 4 very familiar characters to try and get it back and win in the process. The original Wonderland story was a surreal one and the imagery here is suitably strange. It’s good though, and packed full of atmosphere.

The game grid is made up of 4 lower value gemstones and 4 more rewarding character symbols. They are the Dormouse, Caterpillar, Cheshire Cat and the Mad Hatter. The Mad Hatter is the most lucrative symbol. Land a cluster of 5 symbols for a payout of 2.5 x your total stake. Create a cluster of 15 or more symbols and you’ll scoop a bumper payout of some 1,000 x your total stake.

You can play Agent of Hearts on desktop, tablet and mobile devices. Even though the game grid is large and there are plenty of moving parts courtesy of the cascading reels, the design in the Agent of Hearts mobile slot is more than up to the job.

Agent of Hearts Bonus Features

With 7 bonus features, there’s plenty of variety when it comes to the extras in Agent of Hearts. Collect winning symbols to trigger a quartet of modifiers. You could also benefit from a random addition of wilds. All these extras can come into play when you activate the free spins.

Cluster Wins feature

Whenever you create a winning cluster, the Cluster Wins feature is activated. The winning symbols are blasted off the grid and a symbol drop follows. A new payout consideration is then made. These symbol drop cascades keep on coming as long as a new winning cluster is made.

Random Heart Wilds feature

The Random Heart Wilds feature can trigger at random following any spin that doesn’t deliver a winning cluster. Between 4 and 7 wilds are added to random positions on the reels and a new payout consideration takes place.

Agent features


To the side of the reels in the desktop version and above the reels in the mobile slot are 4 meters. Each one is based on a character. Land a winning combination made up of 1 of these 4 symbols and those winning symbols are collected in the associated meter. Fill all 6 positions on the meter during a single spin and set of cascades and you’ll activate that symbol’s feature. Here’s what to expect:

  • Cupcake Splat feature: the Dormouse runs across the reels from top to bottom. As he goes, he leaves a trail of cupcake bombs. When these explode, they will remove the symbol and create a symbol drop or transform into a new symbol.
  • Smokin’ Phat feature: the Caterpillar blows 1, 2 or 3 trails of smoke diagonally across the game grid. When the smoke clears, symbols will have been removed or transformed into a new symbol.
  • Grinning Cat feature: the smiling Cheshire Cat grins which will then either remove the symbols beneath or transform them to a random symbol.
  • Mad Hat feature: between 6 and 9 Mad Hatter hats are added to the grid. These hats then spin which in turn removes adjacent symbols to create a new symbol drop or they transform into new symbols. The White Rabbit can also appear at random on any spin to award an Agent feature. If you land more than 1 Agent feature on the same spin, the modifiers play out in the order shown above. Each symbol meter resets on each new spin.

Queen’s Heart Free Spin feature


Trigger the Queen’s Heart Free Spin feature by collecting 3 keys during a single spin and set of cascades. You’ll then be awarded single free spin. During that single free spin, the 4 Agent features play out in turn.

There are more goodies to come when all the cascades have been completed too. A 3×2 Mega Wild is added to give you another shot at triggering more cascades and winning clusters.

Agent of Hearts Review Summary – feature-rich fantasy adventure

The madcap source material is a bit bonkers and the same is true of the Agent of Hearts slot. The design is true to the original story and nicely done. The gameplay impresses, delivering plenty of variety thanks to the cluster pays, cascades, multiple modifiers and random wilds.

The features can all combine if you manage to unlock the keys and trigger an elusive free spin where a 3×2 Mega Wild is in play. However, the bigger wins will come from the top-paying Mad Hatter symbol.

Of the series, Court of Hearts offers a slightly higher RTP rate (96.27% vs 96.25%) and bigger max wins (8,500 x stake vs 5,262.5 x stake). If you want more adventures in Wonderland, my pick would be White Rabbit Megaways by Big Time Gaming as it comes with 13,000 x stake max wins and an impressive 97.77% RTP.

Agent of Hearts FAQs

What is the Agent of Hearts RTP?

What is the Agent of Hearts RTP? The Agent of Hearts RTP rate is 96.25%. The volatility is high, coming in at around 8 out of 10.

What is the Agent of Hearts max win?

The maximum win here is 5,262.5 x your total stake. The key to winning big is from the Mad Hatter symbol as well as the Cluster Wins mechanic.

What are the Agent features?

The Agent features are 4 special modifiers that are awarded if you collect 6 or more of a specific character symbol during a single set of cascades. These can remove symbols from the grid or transform them into new symbols which can trigger new sets of cascades.

Are they any Agent of Hearts free spins?

Yes, the Queen’s Heart Free Spin feature gives you just 1 free spin. However, all 4 Agent features play out in turn before a 3×2 Mega Wild is added to the grid.

Agent of Hearts Slot Information

  • Game:
    Agent of Hearts
  • Provider:
    Play 'n GO
  • Type:
    Video Slot
  • Reels:
  • Paylines:
    Cluster Pays
  • Stakes Range:
    20p to £100
  • Bonus Features:
    Yes (7)
  • Free Spins/Multiplier:
  • RTP %:
  • Max Win:
    5,262.5 x
Review by Chris Taylor

Review by Chris Taylor

Chris is a slots expert that has reviewed and played over 4,000 online slots. Having being in the iGaming industry for over 16 years, he knows how slots work, how bonus features are triggered and how the RTP and variance affect the gameplay.

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