Koi Princess Slot

Koi Princess Slot

Technical Table Information

RTP (return to player):96.00%
Casino Gaming Developer:NetEnt
Release Date:24.11.2015
Maximum Multiplier:1000x
Winning Lines:20
Min bet: 0.20
Max bet: 200
Provably Fair:No
Jackpot: No
Technology used:HTML5
Theme slot: Anime 
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Description of the Slot 

The 21st century has expanded its horizon to include various forms of narrative entertainment. One such popular medium is anime, especially those coming from Asia. Asian anime enjoy worldwide popularity and to reflect their enduring commercial success, NetEnt released Koi Princess in 2015.

Koi Princess is a 5 reel slot with 3 rows and 20 fixed paylines. As the title suggests, the game revolves around a cute Asian princess and a set of characters belonging to her realm. Although the slot first appeared in 2015, it still performs exceptionally well in online casinos, thanks to the load of features the game has. Whether you are looking for free spins, coin win, or wild reels, all of them are present in this game. So let’s explore this highly popular NetEnt slot to learn more about it. 

Design and Audio

Koi Princess pays tribute to the Asian anime culture which has given excellent productions over the years. From the game’s background visuals to the reels, everything is colorfully depicted. Looking closely into the slot’s graphics reveals a lake with a waterfall, a Buddhist-style building, and a naturally beautiful environment. Talking about beauty, the Koi Princess stands next to the reels overlooking your gameplay throughout the session. 

A Japanese folk tune can be heard in the background and is very pleasing to hear. While this animated world is completely unreal, it still makes you stick to this peaceful slot to continue with your bets.


One of the reasons behind the enormous success of Koi Princess is the numerous paying features the slot has both in the base game as well as during the bonus rounds. Let’s take a look at each of them. 

Bonus Bet 

You can opt for Bonus Bet before any spin and it will double your chances of landing Random and Bonus features. To play Bonus Bet rounds, you have to click on the Deactivated button to turn it to the Activated mode. Your bet amount becomes double to enjoy this feature but with the added possibility of doubling up your wins. Since the slot has a vast range of betting limits, playing Bonus Bet at a small amount won’t pose much pressure on your wallet. 

Four Random Features 

During the base game, one of the four features can get randomly activated to rack up your wins. They are as follows: 

  • 5-Hit Random Feature: The feature awards players one spin with a guaranteed 5-symbol win of any randomly selected symbol type. 
  • Random Wild Feature: This feature awards players one spin with 4 to 9 overlay wild symbols placed randomly on any position on the reels. 
  • Wild Reels: In this random feature, you win one spin with 2 to 5 reels covered with Wild overlay symbols. 
  • Bonus Activation: One spin is awarded giving three bonus symbols of which one bonus feature is randomly activated. 

Bonus Features 

The slot has four bonus features with multiple ways to trigger them. The first way is to land three bonus symbols on reels 1, 3, and 5. However, if you get only 2 bonus symbols and a winning combination on the same spin, a 3rd bonus symbol is nudged down into the reels to take you to one of the bonus features. And as already mentioned, random features can also kickstart any bonus round through the Bonus Activation Random Feature.

Here are four bonus features Koi Princess might reward you with:  

Sure Win Free Spins

You get 10 Sure Win Free Spins during this feature where every win will at least resemble the biggest amount won during the whole free spins session except for the first spin. The first spin becomes a parameter for subsequent winnings until a bigger win is achieved. In short, the biggest win in this feature will apply to all the spins

Wild Reels Free Spins 

10 free spins with 1-5 wild reels on each spin are awarded during Wild Reels Free Spins. On each spin, the position of wild reels is rearranged and the number of wild reels present might also vary. All the reels are subjected to this feature and you might get a spin where all the 5 reels are covered with wilds. 

Bonus Wheel 

If you land on this feature, a bonus wheel pops up with 3 tiers divided into 12 positions: wins coins, Sure Win Free Spins, and Wild Reels Free Spins. Start the game by clicking on the dice and depending on which position the dice land, you will be awarded a prize. The wheel also has 1x to 5x multipliers, a Double Up option, and a Jackpot Coin Win

Coin Win 

In this feature, you get coins offering an instant cash amount varying between 15x to 30x the bet


Paying symbols are pretty impressive in Koi Princess where even A to 10 card royals offer 5x to 8x the stake for landing a line of five identical symbols. Next in line are the medium-paying symbols of coins, frog, dragon, and Koi Princess offering up to 20x the bet amount for a five-of-a-kind winning combination. But look out for wilds since they are the slot’s highest paying symbols offering 25x the stake for landing five matched ones. Also, the maximum win amount you can rake in the game is about 1000x the stake, which is pretty decent for this slot. 


Although NetEnt has not revealed the plot of Koi Princess, the slot draws inspiration from Asian anime culture at large. Whether you look at the reels, symbols, or the princess standing on the grid’s left side, every animation segment is designed keeping faith in the anime tradition. 


Koi Princess has a medium variance math model which goes pretty well with the max win amount the slot offers. Medium volatility slots strike a balance between risk and rewards, generally giving frequent wins of mostly average payouts. But a lucky hit or two might give you ample returns on your bet. 


About the Game Provider 

Net Entertainment, popularly known as NetEnt, is a pioneer of the igaming industry. With over 20 years of experience, over 200 high-quality casino games, and a worldwide reach, there aren’t many who can dispute its contribution to developing the igaming scene at large. NetEnt proves its excellence not only with top-notch slots but also by releasing other popular games like blackjack and roulette. 

Now, the game provider has spread its dominion in crypto gambling, where a large number of Bitcoin casinos host games from NetEnt. The way the company is moving forward suggests it is going to rule the igaming scene with few other top-tier game providers for years to come. 

Final Considerations 

It has been 7 years since Koi Princess was released. Still, the slot gives tight competition to several new releases with its amazing features. There is not a single department where the slot doesn’t excel. Features like Sure Wins and Wild Reels Free Spin, take Koi Princess to a level of excellence unmatched by the majority of casino games. Even the Random features during the base game or an RTP of 96% from a 2015 slot seem nothing short of magical. 

So, if you are looking for a medium variance slot with astounding features, look no further than Koi Princess. It is hands down one of the best NetEnt releases of all time. 

Other Slots by NetEnt 

  • Gonzo’s Quest
  • Narcos 
  • Starburst


Koi Princess has a large set of random and bonus features which might become too much for a player at first glance. Hopefully, our Koi Princess slot review will help you decipher all the features the game has. If you have doubts regarding any section or something else you’d like our help with, contact us via the comment box given below. We’ll try our best to offer you a solution.  


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