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Koi Princess slot review

Added by NetEnt. Information last updated: 01/03/2021

User rating:

- (0)

Expert rating:

4 (1)

Game information

Game supplier: NetEnt

Release date:11/2015



Max. win:bet x 250

Mobile version:Support all devices

Play Koi Princess


Bonus game or special game

Random bonus game

Stacked wilds

Random wilds





User ratings (0)

Game design:



Game sounds:

Mobile gaming:


RTP (Return to player):
Max. win:
bet x 250

Bojoko score (compared to other slots on Bojoko)
NetEnt score (compared to other slots of supplier)

Expert's review Kati Saari

Slot tested

There is no need to travel to the Far East to experience the wonders of the Orient. NetEnt slot game Koi Princess delivers a fully-fledged slot game in a classic Japanese anime style, reminiscent of Japanese cult cartoon favourite Sailor Moon.

When I opened this game, I was whisked away to many years ago, when I was still a young girl watching Japanese cartoons. This game encapsulates that nostalgic time with much fervour.

We don’t quite know the story behind this slot game. All we know is that NetEnt wanted to create the perfect ode to Manga. For those of you who are not familiar with this term, Manga refers to comics created in Japan conforming to a style developed in the late 19th century. So, it comes as no surprise, that Koi Princess is the epitome of Manga cartooning, and a slot dedicated to this art that celebrates Manga in all its glory is well-deserved and much welcome.

Spread over five reels, three rows and 20 fixed pay lines, the Princess herself supports and cheers you on as she stands to the left side of the reels. Dubbed as ‘the most feature-packed slot we have ever made!” by its creators, you might have to be the judge to whether this rings true.

That being said, while playing it, it was quite apparent that it’s a game you can easily get hooked by. It’s not just the features, but the oriental imagery and the traditional soundtrack. The soundtrack itself is very relaxing and zen-like.

When it comes to the graphics, the slot game evokes memories of 80/90s Japanese cartoons or anime comics. There is a lot here to take on, without being over the top or flashy. With a fusion of Eastern Asia influences, including the stunning scenery of the temple and the well-kept garden, together with oriental music accompanying the gameplay, this is a game that heightens all senses.

Symbols & Features From the first look, it appears that there’s nothing special about the game in terms of interface. Icons featured on the reels are closely related to the theme, essentially a variety of Japanese-influenced symbols.

The lowest paying symbols are the standard cards from 10 all the way to A, while the higher-paying symbols are the frog, the lion, interlinked gold pendants, and the Koi Princess herself. Land five of the Koi Princess symbols anywhere on the reels and you’ll earn yourself 20x your stake.

As previously mentioned, Koi Princess is chockfull with features, which it all kick-offs by a striking feature known as the Bonus Bet. This button, once activated, on the bottom-right corner doubles your overall bet. Most importantly it enhances your chances of activating a random feature during base gameplay.

Random Features in Koi Princess

In total, there are four random features that can be triggered:

  • 5-Hot Random Feature:This feature rewards you with a single spin which guarantees a 5-symbol win.
  • Random Wild Feature: You are reward with a single spin and between four and nine random overlay wilds.
  • Wild Reels Random Feature: A single spin which encompasses between two and five of the reels covered in wilds.
  • Bonus Activation Random Feature: Once again, you are rewarded with a single spin, but three bonus symbols are also included with a single bonus feature randomly triggered straight afterwards.

Bonus Features in Koi Princess The Bonus features are triggered by landing thee bonus symbols on reels one, three and five. Should only two crop up, the third might be bumped into view.

  • Sure Win Free Spins: During this round, you are awarded 10 Sure Win Free Spins, meaning that all spins pay out the same large amount throughout the session, bar the first spin, which amounts to your bet.
  • Wild Reels Free Spins: Once again, you are awarded 10 Wild Reels Free Spins. During this round, you’ll receive between one and five random reels covered by wilds.
  • Bonus Wheel: This feature sees a bonus wheel side game, where you can snatch up coin prizes and trigger the previously mentioned free spins functions too.
  • Coin Win: What it says on the tin, an instant coin win.

In Conclusion Mentioning all the features within this article has been exhausting, but what a game! Built to provide thrills and exhilaration, it ties in perfectly with the theme, and in terms of execution.

With an RTP of 96.23% and of medium variance, Koi Princess isn’t the type of game I usually go for. However, the features succeeded in captivating my attention, thanks to its multipliers, stacked wilds and free spins galore.

In terms of deliverance, NetEnt wasn’t joking around about creating a feature-rich game. Go on, give it a go!

Overall rating:


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  • Features

    Wins and bets

    RTP (Return to Player):96.23%


    Max. win:bet x 250

    Min. bet:£0.2

    Max. bet:£400

    Progressive jackpot:

    Reels & playlines



    Non-standard layout:

    Max. lines:20

    Min. lines:20

    Win both ways:

    Other features


    Expanding reels:

    Stacked symbols:

    Colossal symbols

    Auto play:

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    Virtual reality:

    Bonus features

    Bonus game:

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    Free spins:

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    Standard wilds:

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    Walking wilds:

    Stacked wilds:

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    Walking re-spins:

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    You can play Koi Princess in English, Finnish, Swedish, German and 20 other languages.

    All supported languages:
    English, Finnish, Swedish, German, French, Spanish, Italian, Russian, Bulgarian, Croatian, Czech, Danish, Dutch, Estonian, Greek, Hungarian, Polish, Norwegian, Portuguese, Romanian, Slovak, Turkish, Chinese


    Koi Princess supports GBP, EUR, SEK, NOK and 33 other currencies.

    All supported currencies:
    GBP (£), EUR (€), SEK (kr), NOK (kr), DKK (kr), RUB (₽), CZK (Kč), USD ($), NZD ($), CAD (C$), AUD ($), ZAR (R), UAH (₴), GEL (ლ), TRY (₤), BRL (R$), CNY (¥), PEN (S/.), ARS ($), MXN ($), PLN (zł), CHF (₣), BGN (лв), HRK (Kn), HUF (Ft), RON (L), ISK (Kr), INR (₨), JPY (¥), MYR (RM), PHP (₱), SGD ($), THB (฿), TWD ($), GHS (₵), HKD ($)


    Release date 11/2015
    114th newest on NetEnt 984th newest on Bojoko
    RTP 96.23% 0.19% > average
    106th highest on NetEnt 527th highest on Bojoko
    Win up to 250 x your bet
    150th highest on NetEnt 1,165th highest on Bojoko
    Paylines 20 0% < average
    66th highest on NetEnt 578th highest on Bojoko
    Min bet £0.2 per spin
    61st lowest on NetEnt 625th lowest on Bojoko
    Max bet £400 per spin
    6th highest on NetEnt 38th highest on Bojoko
    Rated 0 by 0 members
    7th most rated on NetEnt 37th most rated on Bojoko
    161 more slots listed by NetEnt

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    Expert's profile


    Kati Saari

    Kati Saari

    Kati Saari has worked in the gambling industry since 2014. She has tested hundreds of casinos and written thousands of articles while evolving into an iron-clad expert in her field. Having a true passion for her work she’s adamant not to let anything past her without thorough research.

    Latest reviews:
    Koi Princess cover

    Game supplier:NetEnt

    Release date:11/2015

    RTP (Return to player):96.23%

    Max. win:bet x 250

    Mobile version:Yes

    User rating: 0
    Expert rating: 4

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