Koi Princess Slot Machine - Demo, Free Play ,Game, Casino

NetEnt’s Koi Princess is a perfect online slot machine for players that enjoy Asian popular culture. The slot has a standard grid with five reels and three rows, and twenty betways. The casino game has wide betting options ranging from $0.1 to $200. With a return to player ratio of 96.23%, players can turn winners of the $200,000 maximum jackpot with fair ease. Still, players should try their luck with the play demo version first. It is better to play for free to understand how the game works before making real bets. Koi Princess is extremely rich in terms of bonus options. Everything starts from a free spins feature, which increases the payroll. And there’s a jackpot wheel and progressive multipliers that make the game a sheer gambling joy.

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Koi Princess demo
User Rating: 5/5 (12 votes)


Provider NetEnt
Category Free Slots Online
Release 24.11.2015
RTP 96.23%
Variance MED
Max Win N/A
Min bet (Max bet) $, €, £ 0( 200 )
Layout 5-3
Game type Video Slots
Paylines 20
FreeSpins, Wild, Bonus Game, Bonus wheel
Theme Anime
Desktop, Tablet, Mobile
Technology JS HTML5
Updated 04.03.2024

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Koi Princess Slot Demo Review

General About This Slot

Koi Princess slot was released in 2015 by one of the most renowned and beloved vendors, NetEnt. The NetEnt logo has already become an indicator of high quality and a perfect optimization. Each casino proudly shows its logo at the bottom of the website's main page.

As for the Koi Princess slot, a vendor did not betray traditions: the machine amazes both with appearance and gameplay. Even when you play the demo, it is easy to dip into the authentic Asian atmosphere. Just imagine what will happen when you add a feeling of heat and real cash winnings into the process.

The Koi Princess game forms a great reference to Asian popular culture and anime cartoons in particular. A mascot, Koi Princess herself, is drawn in typical anime style: long hair, a bit fanciful outfit, and distinctive facial features. The background is formed by the stereotypic Japanese landscape: a waterfall and blooming Sakura on the opposite stream bank.

The animations contribute to this impression as well. The Big Win mode is a direct reference to the typical anime approach: a single-colored background with moving lines and a closing face of the main character are in combination with the intensifying music. So, attention to detail is the first factor of significant popularity and high slot awareness.

How to Play This Slot

The Koi Princess slot machine can be divided into three main sections:

  • The upper space is occupied with a logo and a line indicating various tips.
  • The middle space forms the game table with symbols. A mascot of a game, a Koi Princess, stands to the left of the playfield. Every time winners get a combination, the girl shows her reaction. The emotion depends on the rarity and the line cost. The table counts five reels, three lines, and fifteen tiles to appear at once.
  • The bottom space is occupied by two control panels (one is for the game process, and another is for the overall slot setup).

These control panels contain various buttons and screens diversifying the game and showing its status. See what you can do with the game:

  • The 'i' activates a slide carousel with a tutorial, the winning lines guide, and the list with symbol prices.
  • The 'Bet' indicator shows the prices of a single bet in coins (from 20 to 200).
  • The 'Level' controls indicate the number of lines to be played, up to twenty. The level shows the cost of the bet per line and affects the total stake for a single spin.
  • The 'Autoplay' button enables the regime and allows choosing a number of automatic spins (up to 1000).
  • The big round button with the circled arrows substitutes a traditional 'Play' button.
  • 'Max Bet' sets the Level 10 automatically.
  • The 'Coin Value' meter sets the ratio of the real money to game coins. It starts with $0.20, and the maximal price is $20. 
  • The 'Coins' section indicates the number of coins in the bank.
  • The 'Bonus Bet' button toggles a special bonus feature (see details below).
  • Move to the bottom to see the settings button, the volume slider, the auto-spin number selector, and the list of game rules and conditions.
  • Finally, there are three indicators that reflect the amount of money left on the casino balance, a total bet sum expressed in cash ($400 is the maximally available stake) and the winning from the last spin.

A gambler has to set the level and the coin price to start playing the Koi Princess slot machine. After that, gamblers must check the total bet cost per spin and hit a big round button. When the reel rotation is over, winners will be shown a winning line, its total price, and a mascot reaction.

The payline starts from the very left reel and goes rightwards. The minimal number of adjacent tiles required is three (for standard symbols) and two (for a Wild and a Bonus symbols). There are twenty winning line variations in total. The tiles cannot be adjacent to each other in some cases. 

There is no progressive jackpot option in the Koi Princess casino game. So, winners can count on website offers concerning the slot only. This sad fact is compensated by a good bet range (from $0.20 to $400), and a high ratio of money potentially returned to the player (96% or 96.23% (with the Bonus Bet feature being toggled).

Symbols and Soundtrack

The background music of the slot machine is looped and plays constantly. The melody is a combination of Asian folk melodies with anime sound effects and ambient. Each action made by a player is accompanied by a sound effect. Bonus game activation, big wins, and other options have special sounds and melodies. Voiced Koi Princess deserves additional mention. 

The Koi Princess slots consist of eleven symbols gathered in two groups:

  • Standard signs include 10, J, Q, K, A, and three pictured symbols (coins, a turtle, and a lion).
  • Special characters are formed by a max win (Koi Princess portrait), a Wild tile (sea waves with the WILD word above), and a Bonus tile (Scatter in the form of a dragon). 

The variety and symbol functions are pretty standard: a Wild can substitute any other symbol in line, a Bonus symbol activates special regimes if its number on a playfield is enough, and a Koi Princess symbol ensures the maximal payout if there are five-in-a-row of them.

Bonus Options

On the other hand, Koi Princess slot machines leave all competitors far behind in bonus features, as there are nine of them! Some of them must be activated. Others appear randomly, which is a significant advantage.

First, each spin, independently of the result of the previous one, can trigger a choice of five bonus features. Winners must choose one of three Koi fishes. Each of them can bear a bonus:

  • Five-hit.
  • Wild Reels.
  • Bonus Game.
  • Random Wilds.

Each feature increases the chance of Wild appearance, turns some reels into Wilds automatically, or improves the Bonus appearance. Three Scatter symbols appeared on the first, third, and fifth reels to activate the bonus game. The bonus game has got four aftermaths:

  • Sure Win Free Spins: get ten opportunities to play for free with increased symbol appearance chances.
  • Wild Reels Free Spins: another ten free spins with one reel going completely Wild.
  • Coin Win: winners get a payout that equals their bet with the multipliers from x15 to x30.
  • Bonus Wheel: spin a jackpot wheel with a wide range of bonuses (multipliers, additional free spins, bonus features, etc.).

Finally, the Bonus Bet feature can also be considered as the bonus option. It not only doubles the bet sum and possible winning, but increases the overall chances of seeing more special tiles.

Pros and Cons

From first sight, the Koi Princess slot seems to be flawless. However, let's check its ups and downs.


  • different bonuses;
  • excellent bet price range;
  • good RTP ratio;
  • outstanding design and music.


  • only 20 paylines;
  • standard symbol collection.

A significant number of bonuses along with the high RTP make this slot attractive for gamblers. Continue reading to learn where to play this game.

Where to play

As you can see, there are almost no failures to blame the slot. As we mentioned, the game is available for all devices. Some casinos have apps where you can play a Koi Princess slot free of charge. Also, the popularity of a game vendor ensured the high demand for the game. The most popular casinos to play Koi Princess demo as well as for real money are Leovegas, Casino Lab, Novibet, Casumo, GUTS, and Mr Green.

If you are into Asian culture and anime or love high-quality slots with goods chances to win money, the Koi Princess slot machine is a must-try! Hours of happy time and entertainment are guaranteed.



Commonly Asked Questions About Koi Princess Slot

If you have any specific questions, please message us.

How to win Koi Princess slot?

Koi Princess slot has a Free Spins bonus round, which is triggered by landing 3 or more Scatter symbols on the reels.

How volatile is Koi Princess?

Koi Princess slot is a medium to high variance slot which will be a big hit with players.

Can I play Koi Princess for free?

Yes, Koi Princess slot can be played for free or real money at all online casinos.

Is there a free spins feature mode in Koi Princess?

Yes, Koi Princess slot has Free Spins bonus round, which is triggered by landing 3 or more Scatter symbols on the reels.

What is the biggest win possible in Koi Princess?

The biggest win possible in Koi Princess slot is 5000x your stake.

What is the Koi Princess jackpot record?

Koi Princess jackpot record is £65,000.00.

Written by: Oliver Taylor