Koi Princess slot review

NetEnt’s Koi Princess is a stunning Japanese Manga-themed slot with a massive selection of random and bonus features. The game is beautifully designed with soft colours and traditional Japanese Cherry blossoms around the reels, and it will without any doubt keep you entertained while you’re spinning the reels in the hunt for the maximum jackpot of 250,000 coins. Read the full review below to find out more about the gameplay and see at which online casinos you can try out this slot right now.

Koi Princess slot features

Koi Princess slot is set on 5 reels, 3 rows and 20 paylines. The symbols include intricate Japanese lucky charms like frogs, lions and turtles as well as the card symbols. Koi Princess herself is also a symbol, while the breaking wave acts as a wild and the bonus symbols is a dragon’s head in gold.

During the base game, you will encounter four different random features that can be triggered at any time so be ready for a nice number of surprises on the reels.

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The way the feature works is that you see a pond under the reels with 3 Koi (carp fish) jumping out of the water. Pick one of them to reveal which feature was randomly chosen for you. There are 4 options in total.

  • Wild Reels feature provides one spin during which anywhere from two to five reels will become completely wild.
  • 5-Hit Random feature which gives you one spin of the reels with a guarantee of at least 5 winning symbols.
  • Random Wild feature – get one spin with 4 to 9 extra overlay wilds on the reels.
  • Bonus Activation feature – receive one spin which will activate one of the random features below.

£ 100 bonus on first deposit. Min. deposit £20. 100% bonus up to £100 valid on first deposit only. Wagering on bonus: 80x. Wagering must be completed within 30 days. Max bonus bet £5. Bonus is valid for a total of 21 days. Game weighting, payment method and standard bonus terms apply.

£ 500 bonus on first deposit 125 bonus spins.
500 loyalty points
New players only. 1 bonus offer per player. Min. deposit £20. Max. bonus bet is £5. Bonus funds expire in 30 days. 35x wagering on total bonus, cash & bonus spins. Only bonus funds count towards wagering contribution.

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Koi Princess slot Free Spins

Activating the four bonus features can be done by either landing the Bonus Activation random feature or by getting three bonus symbols on the first, third and fifth reels. One of the 4 bonus features will be picked for you at random.

Sure Win Free Spins feature

Sure Win means that any win during this bonus round will be at least as much as the first win. The feature will give you 10 initial free spins, 5 of them will have an extra overlay wilds added to random positions on the reels for each spin. This bonus feature can be retriggered.

Coin Win feature

Get a cash prize with a random multiplier from x15 to x30.

Wild Reels Free Spins feature

10 free spins are given to you in this feature and for every single spin anywhere from 1 to 5 reels will be completely covered with overlay wilds giving you an opportunity for some serious wins.

Bonus Wheel

One of our favourite features is the Bonus Wheel Of Fortune. It can either award cash prizes or activate one of the two free spins modes - Wild Reels or Sure Win. There are three tiers or layers with 12 sections in each. One of the section has an arrow which moves you closer to the middle of the wheel. Reaching the centre can end up in you winning 1,000 your stake in this round.


£ 50 bonus on first deposit 50 extra spins. New customers only. Min. £10 deposit. Max. bonus £50. 40x wagering requirement on bonus amount within 30 days. Bonux max bet £5. Spins paid in batches of 10/day over 5 days and expire after 24 hours. Game weighting applies.

Koi Princess slot bonus

If all the above wasn’t enough for you, you could also get a lot of extra free spins and massive cash welcome bonuses at the best online casinos in the UK. When you are deciding at which casino to try out the Koi Princess slot, click the links in this review – we’ve collected the biggest casino bonuses on the market, so you don’t have to search for the best offers yourself.

Where to play Koi Princess slot online

200 no wagering free spins on first deposit. New UK players only. Spins only available on Starburst. Deposit and play £25 on selected games and get 25 spins OR; Deposit and play £100 on selected games and get 100 spins OR; Deposit and play £200 on selected games and get 200 spins. Spins expire after 3 days. 14 days from registration to claim offer. Players may withdraw their cash deposit or any remaining cash deposit and any cash winnings. If this is withdrawn, the spins and any winnings will be forfeited. All winnings from the spins will be paid out in cash.

£ 40 bonus on first deposit. New Customers Only. Minimum deposit £10. 35x wagering requirement applies. Bonus will expire 30 days after opt-in.


Koi Princess slot min/max bets, jackpot and volatility

You can play Koi Princess slot starting from a minimum bet of 20p and up to the maximum bet of £200 per spin, so the betting range is very wide and will suit anyone. This medium volatility slot offers a maximum non-progressive jackpot of x5,000 your stake or 250,000 coins. When you start playing you can activate the bonus bet feature which will increase the return to player percentage from 96.00% to 96.23%, it’s not that much but still worth knowing.

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Koi Princess slot graphics and sounds

The design and overall look of this slot is absolutely gorgeous – muted pink and golden colours and cherry blossoms, waterfalls and temples together with the calm Asian soundtrack create an atmosphere of bliss and joy. The Manga style Princess who is ridiculously cute with her massive eyes and cheeky outfit will stand on the left of the reels and excitedly cheer for you every time you win. There is a separate version called Koi Princess Touch™ that you can enjoy on your mobile and tablet as well.

Koi Princess slot - our conclusion

Charming, stunning and beautifully designed, this slot certainly deserves giving a spin to. With 4 random and 4 bonus features including the Bonus Fortune Wheel, you can be absolutely sure that both action level and opportunities to win are vast and varied here. And if you like all things Manga and Oriental, then you absolutely cannot miss this beauty of a slot.

Watch Koi Princess slot video preview below:

Koi Princess™ - NetEnt