Koi Princess

Rate This Free Game
(117 votes)
213 more slots

Get up to $4,000 + 300 Free Spins

What Will You Play Next?
Koi Princess Slot Machine

Koi Princess Slot Machine

Koi Princess is an anime-themed slot game from the creative geniuses at NetEnt, and not only does it look and play great but it also offers a stack of awesome prizes and payouts.

With 20 paylines to play with you can pick up some steady wins from within the main game, but really it is the bonus features that convince players from all around the world to come back to Koi Princess for more.

Orient Express

The basic building blocks of success in the Koi Princess slot are the playing card symbols. These pay out at a variable rate on an ascending scale; for example, Ten pays 5 coins, 20 coins and 100 coins for spinning three, four or five respectively. The Jack, on the other hand, earns 5 coins for matching three on adjacent reels, 25 coins for spinning four and 110 coins for a line of five.

The big three are the Queen, the King and the Ace in the pack, and these pay:

  • Queen = 5 coins for three, 30 for four, 120 for five.
  • King = 10 coins for three, 40 for four, 140 for five.
  • Ace = 10 coins for three, 50 for four, 160 for five.

The next set of main game symbols are the Japanese artifacts: the Gold Coins pay 20, 75 and 200 coins respectively for spinning three, four or five, whilst the two idols are particularly handsome rewarders: the Green Idol earns 20 coins for three, 100 coins for four and 250 coins for five, while the Orange Idol pays 30, 150 and 300 coins respectively.

The scatter symbol is the Koi Princess herself, and she is feeling particularly generous. Players can earn up to 400 coins for spinning five of her, with smaller prizes on offer for matching two (2 coins), three (40 coins) or four (400 coins).

Last, but by no means least, is the Wild symbol, which pays a top prize of 500 coins.  You will also earn 4 coins for two Wilds, 100 coins for three and 300 coins for four.

Bonus Bucketload

Players have access to the Bonus Bet function in the Koi Princess slot machine. Activating this will double the cost of each spin, but you will increase your chances of being awarded a Random Feature and/or a Bonus Feature. The Bonus Bet will also enhance the values on the Bonus Wheel and increase prizes in the Sure Win Free Spins round. I am not sure how this affects the RTP percentage, but generally speaking it makes the odds slightly better for the player.

In addition, there are four Random Features that appear in the Koi Princess slot game and each possesses its own super power:

The 5-Hit symbol awards players with one free spin that includes a guaranteed five symbol win with a random symbol and bet line.

The Random Wild will play out a free spin with 4-9 overlay wilds placed randomly on your reels.

The Wild Reels feature ensures that any number from two to five of your reels is covered with overlaying wilds.

The Bonus Activation feature awards one free spin and offers three bonus symbols with one bonus randomly awarded.

Random Rewards

If you spin three bonus symbols on reels 1, 3 and 5 then you will be rewarded with a random bonus feature. There are four of these too, namely Sure Win Free Spins, Wild Reels Free Spins, Coin Win and the Bonus Wheel.

In Sure Win Free Spins, players are awarded ten free spins during which the win for each spin will be at least the same as the Sure Win session, apart from the first spin where the amount is that wagered by the player (20 coins multiplied by your bet level).

You will be awarded with 10 Wild Reels Free Spins should you trigger this feature, and here 1-5 of your reels will be randomly covered with overlay wilds. Their amount and position changes for each spin to maximise your winning potential!

Via the Bonus Wheel, players can win coins and activate the other two bonus features (Sure Win and Wild Reels). The wheel contains a number of prizes that you must navigate to, and if you are lucky you will pick up a fantastic payout or bonus.

Lastly, the Coin Win is quite simply that: an instant coin win of a random amount.

So if you're an anime lover or just a good old fashioned slots lover, then the Koi Princess slot is sure to push all the right buttons. "Ganbarou" or good luck!

Free to Play NetEnt Slot Machine Games

You Might Also Like

Casino Bonuses

Casino Bonuses

From welcome packages to reload bonuses and more, discover what bonuses you can get at our top online casinos.

Online Gambling

Online Gambling

Ready to learn all about online gambling? Then check out our complete guide, where we also rank the best gambling sites for 2024.

Mobile Slots

Mobile Slots

No matter what device you’re playing from, you can enjoy all your favorite slots on mobile. Find out how to get started.

Live Dealer Casinos

Live Dealer Casinos

Live dealer games are some of the most innovative and immersive offerings at online casinos. Learn about the top live dealer casinos with our expert guide!

Our Favourite Casinos

By subscribing you: consent to receive bonus offers and other emails from VSO; confirm that you are of legal age to gamble in your country of residence; and acknowledge that you have read and accepted our privacy policy. You can unsubscribe at any time. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

You've Won a Free Spin

Join Rooli now and get up to $4,000 + 475 free spins!

#1 variety of casino welcome packages
Claim Bonus

Will You Win?

Choose one of the treasure chests to see if you've won an exclusive bonus.


Treasure Box


Treasure Box


Treasure Box


No thanks

You've Won!

Treasure Box

Enjoy Your Prize!

You've won an exclusive one-time only bonus at:

Get up to $4,000 + 300 Free Spins
Claim Bonus
No thanks

Report a problem with

Let us know what went wrong:

Submit Your Feedback

Thank you for providing feedback! We’re sorry didn’t work.

If you’d like to tell us more about your experience Click here.

While we resolve the issue, check out these similar games you might enjoy.