Immerse yourself into the mystery and darkness of the HarleCoin slot and see if you can find the light amid its bonus features. Collect harlecoins to increase the existing symbol values and search for three scatters to activate up to 25 boost spins.
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The appearance of the slot hits top marks, but the gameplay leaves much to be desired. Thankfully, the coin collection feature is applied to all symbols during the free spins round, allowing you to boost their values exponentially.

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Leanna Madden

100% up to €300 + 25 Free Spins on Book of Dead

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  • Thumbs-Up HarleCoin boosts symbol values in the base game and free spins
  • Thumbs-Up Enhanced values in free spins are carried over into the base game
  • Thumbs-Up Symbol values don’t reset during free spins
  • Thumbs-Down Frustrating maths model
  • Thumbs-Down Modest max potential

HarleCoin Slot Review

A mix of an old-school slot machine and a futuristic-looking joker theme, HarleCoin from Red Tiger is an unusual and rather mesmerising take on a classic fruit online game. It runs on 3 reels, 1 row and 1 payline and employs coin collection as a focal aspect of the gameplay.

Slightly unusual is the developer’s decision to position the paytable right at the top of the reels, distorting the slot’s overall look. However, owing to the HarleCoin payout value-boosting powers, the paytable is ever-changing, and you’ll find it helpful to have it in such a prime spot.

Hats off to the design team at Red Tiger for the epic efforts on the graphics front but, have the maths buffs done enough to match the smooth and edgy visuals? Read our slot review to discover what’s to be had here.

SLOT FEATURES Free Spins, Coin Collection Feature
RELEASE DATE 1st June 2012
GAME PROVIDER Red Tiger Gaming
SLOT TYPE Video Slot
THEME Fruit/Joker
REELS, ROWS, PAYLINES 3 Reels, 1 Row, 1 Payline
BET LEVELS £0.10 – £80
MAXIMUM WIN 1,076x Your Stake

HarleCoin slot screenshot

HarleCoin Bonus Features

You have two bonus features to look forward to in HarleCoin. First up is the coin collection engine. It will allow you to boost the value of any premium symbol on the dynamic paytable. Next is the Boost Spins bonus round during which you’ll be enhancing your symbols values to their limits for maximum results.

HarleCoin Feature

HarleyCoins act as symbol value boosters or multipliers. They can appear attached to any paying symbol at any time, and whichever symbol it’s bound to, the value of the respective symbol will increase.

All the premium symbols, cherries, clovers, stars, bells, sevens and diamond wilds have starting values – 4x, 8x, 12x, 25x, 50x and 125x, respectively. Landing them on the paying line with an overlay HarleCoin will boost that value, up to 20x, 30x, 50x, 100x, 200x, and 500x for the respective symbols, and that’s the max limit. When the wins are paid out, the values reset to a lower rate than the starting amount.


HarleCoin comes with one wild symbol that will substitute for all other paying symbols helping you build a winning combination. At 125x your stake, it’s also the most valuable symbol out of the bunch, the value of which can keep increasing whenever halrecoins land attached to a wild symbol on the reels. However, the rate will reset to 30x once a wild has been used in a win.


The game’s designated scatter, portrayed as a somewhat futuristic baroque style symbol that reads ‘Boost Spins’, is added here to activate the game’s bonus round. Landing 3 of them will activate the bonus round containing a random number of free spins.

Free Spins

Landing 3 scatters could win you up to 25 free spins, unfortunately, the number of the spins is chosen at random. What’s not random are the values of your symbols – they don’t reset during the Boost Spins feature.

So, if you have any symbols left that haven’t reached their cap in the base game, they’ll always land with HarleCoin on them. Once the round ends, you’ll have the boosted symbols carried over back into the base game.

HarleCoin Jackpot

The only jackpot you’ll have to be content with in HarleCoin is its modest max win potential of 1,076x your initial stake.

RTP and Volatility

HarleCoin is rated as a medium to high volatility game which is surprising considering it’s pocket-sized potential. But seeing the below-average RTP of 95.71% is expected, for a Red Tiger online slot anyway.

Where to Play HarleCoin

Start collecting HarleCoins any time via the most reputable Red Tiger online casinos. Our expert teams recommend BetFair Casino, but do check our toplist for many more comparable alternatives.

HarleCoin on Mobile

The cool graphics remain sharp, and booster coins increase symbol values just as much on whatever mobile device you’ll be using to play the HarleCoin slot. Whether it’s an Android phone or iOS tablet, the game is built with mobile play in mind.