Koi Princess

Rules of the game

Koi Princess™ is a 5-reel, 3-slot slot with Random Features activated during a round, Bonus Features, Wild Substitutions, Bonus symbols and a Bonus Bet mode.
It is played with 20 (fixed) bet lines and different bet values.
The bet level is set using the LEVEL selector . Note: Only available with multiple bet levels.
The currency value is set with the CURRENCY VALUE selector .
COINS displays the number of coins available for betting.
When playing at the maximum bet level, BET MAX plays the game with the maximum allowed bet lines and the current coin value. When playing at a lower bet level, you must click BET MAX twice to play the round at the selected level. (Not available at all operators.)
Pressing AUTOPLAY will automatically play the game with the selected number of rounds. (Not available on all operators.)
Winning combinations and payouts are decided according to the Paytable.
The bet level is the number of coins bet per bet line.
A bet line win in coins is equal to the value shown in the PAY TABLE multiplied by the bet level. This amount is also multiplied by the corresponding multipliers.
A bet line win in currency is equal to the win in coins multiplied by the coin value.
Only the highest win per bet line will be paid.
Bet line wins pay if they are in succession from the leftmost to the rightmost reel.
The Wild symbol substitution pays the highest possible winning combination on a bet line, according to the PAY TABLE .
Wild symbols substitute for all symbols except Bonus symbols.
Simultaneous wins from different bet lines will be added.
All coin wins are paid only on bet lines during the Bonus Wheel in Bonus Feature mode.
Random Features and Bonus Features are played at the same level and monetary value as the round that activated them.
Note : The following features may not be available in some casinos: Autoplay, Max Bet, Quick Spin, Quick Stop.

Bonus Bet

The Bonus Bet option can be activated in each game. Activating this option doubles the cost of the game.
Activating the Bonus Bet increases the probability of landing a Random Feature and a Bonus Feature, as well as changing the values on the Bonus Wheel and increasing the guaranteed cash wins in Sure Win Free Spins.
The Bonus Bet does not change the current bet level and monetary value.
The Bonus Bet can be activated and deactivated in the main game.

Random Functions

In each game one of the 4 Random Functions can be activated.
When the random feature is activated, the player must choose between 3 different options to see which random feature is activated.
A Random Feature can be chosen automatically even during Auto Play.
The 4 possible Random Features are: 5-Hit, Random Wilds, Wild Reels and Bonus Game activation.
The 5-Hit random feature awards 1 spin with a guaranteed 5 symbol win with a random symbol and bet line.
5 random symbols overlap all symbols on the bet line.
To select a random overlay symbol, click on the designated area of the 5-Hit wheel that appears below the reels.
If the "Spacebar to Spin" feature is enabled, pressing the spacebar will stop the Bonus Wheel, Bonus Feature Wheel, and 5-Hit Wheel.
Alternatively, the 5-Hit Roulette will automatically stop in 30 seconds.
The Random Wild Feature awards the player 1 spin with between 4 and 9 Wilds superimposed on random reels.
The Wild Reels Random Feature awards the player 1 spin with between 2 and 5 reels that become full Wild Reels, meaning an overlaying Wild symbol covers the selected reels.
The Random Bonus Activation Feature awards 1 spin with 3 Bonus symbols and no line wins, which are presented with 1 Bonus Feature awarded.
Only one Random Feature can be activated per game.
Random Features cannot be triggered during Bonus Features.
Random Features and Bonus Features cannot be retriggered.
At the conclusion of the Random and Bonus Features, the total win from these features is added to the round that activated the features.

Bonus Features

3 Bonus symbols on reels 1, 3, and 5 award a Bonus Feature. If there are 2 Bonus symbols on the reels after a spin and any bet line win is awarded, a 3rd Bonus symbol is introduced onto the reels from the visible reel set, awarding a Bonus Feature.
To activate a Bonus Feature, click on the designated area of the Bonus Feature Wheel that appears below the reels.
The Bonus Feature Wheel stops automatically after 90 seconds of no player activity.
A Bonus Feature can also be triggered as a result of landing a Random Feature (see the Random Feature section for more info).
The 4 Bonus features are: Sure Win Free Spins, Wild Reels Free Spins, Coin Win and Bonus Wheel.
Only one Bonus Feature can be activated on the Bonus Feature Wheel.
A Bonus Feature can only be triggered by a random feature if the Random Bonus Feature is achieved.
Random Features and Bonus Features cannot be retriggered.
At the conclusion of the Random and Bonus Features, the total win from these features is added to the round that activated the features.

Sure Win Free Spins

The 4 Bonus features are: Sure Win Free Spins, Wild Reels Free Spins, Coin Win and Bonus Wheel.
During this Sure Win Free Spins Feature the win in each round will be at least equal to the amount won during the Sure Win Free Spins Feature session except in the first game of the session where the sure win is the amount bet by the player (20 coins multiplied by the bet level in standard mode, 40 coins multiplied by the bet level in Bonus Bet mode).
For spins 1 to 5 during Sure Win Free Spins, a Wild overlay is randomly placed on any of reels 1, 2 or 3. After spin 5, an additional Wild is randomly placed on reels 3, 4 or 5. The position of the random Wilds is recalculated each spin.
After each game during Sure Win Free Spins the win is evaluated to see if it is greater than the guaranteed win.
If the win from a single game during Sure Win Free Spins is less than or equal to the guaranteed amount, the player is awarded the guaranteed amount instead.
If the win from a single spin is greater than the sure win amount, the player is awarded the higher amount, which becomes the new sure win amount. A Sure Win Free Spin is also awarded.
The Win Compensation in the game log is the difference between the guaranteed win and the amount of coins the player has earned in a game.
Any additional Sure Win Free Spins won will be automatically added to the current Sure Win Free Spins.
At the end of Sure Win Free Spins, the game returns to the round that activated Sure Win Free Spins.

Wild Reels Free Spins

In Wild Reels Free Spins, the player receives 10 Wild Reels Free Spins. No further Wild Reels Free Spins can be won during this Bonus Feature.
During the Wild Reels Free Spins feature, between 1 and 5 reels are covered with overlapping Wild symbols in each game.
Their amount and/or position on the reels is assigned after each spin.
At the end of Wild Reels Free Spins, the game returns to the round that triggered Wild Reels Free Spins.

Monetary Gain

The Coin Win Bonus Feature grants the player an instant monetary win.
The amount of the automatic coin win is the current bet multiplied by a random multiplier (x10 - x30).

Bonus Wheel

The Bonus Wheel is a Bonus Game where the player can win coins and activate the other 2 game modes Free Spins Bonus Feature (Wild Reels Free Spins and Sure Win Free Spins).
The Bonus Wheel is a roulette wheel with three sections, each divided into 12 slots. The player clicks the die to move around the wheel. Alternatively, press the spacebar if the "Spacebar to Spin" feature is enabled.
The player's starting point on the Bonus Wheel is at the outer 9 o'clock position. The player clicks the die, and the wheel spins counterclockwise according to the value indicated on the die.
When the wheel stops on a symbol, any action is taken depending on the symbol it has landed on.
The different symbols on the Bonus Wheel are: Home, x1 (When the Bonus Bet is activated), x2, x3, x5 (when the Bonus Bet is deactivated), Double Up, Stand, Arrow, Wild Reels Free Spins/Sure Win Free Spins and Jackpot Coin Win.
The Home symbol is the player's starting point. After the first roll, this symbol changes into an arrow.
The x2, x3 and x5 symbols award monetary winnings that are 2, 3 or 5 times the total bet.
The Double Up symbol doubles all coin win multiplier amounts (except for coins you've already won) displayed on the reels, including Jackpot symbols. This is graphically indicated on the reels. Landing on more than one Double Up symbol during the Bonus Game doubles the amounts again. After triggering a Double Up symbol, it transforms into an arrow symbol.
The Collect symbol ends the Bonus Game and awards the coins given up to that point.
The Arrow symbol moves the Bonus Wheel 1 step inward and immediately executes the action associated with that location on the corresponding step before any dice roll. If the arrow is on step 3, the Jackpot Coin Win is awarded.
Wild Reels Free Spins/Sure Win Free Spins ends the Bonus Game, awards the coins collected up to that point and also awards Wild Reels Free Spins or Sure Win Free Spins.
The Jackpot Coin Win symbol is located in the center of the Bonus Wheel and is displayed as a multiplier (multiplied by the bet that triggered the Bonus game). The multiplier value is randomly selected for each Bonus Wheel game.
The maximum and minimum values of the Jackpot multiplier are x25 and x250 respectively.
The Jackpot Coin Win symbol awards the player a Jackpot coin win plus any coins collected up to that point, in addition to ending the Bonus Wheel Bonus Feature.
At the end of the Bonus Game, the total win from the Bonus Game is added to any win from the round that triggered the Bonus Game.

Game Features

The following table shows all the buttons in the game and describes their functions.

Button	Function
	Click to start a game round at the current bet level and coin value (you can also press the spacebar).
	Click to activate or deactivate the Bonus bet. The button text is displayed in the language of the current game.
	Click to mute game sounds or use the slider to adjust the volume.
	Click to open the game rules.
	Click to view the AutoPlay settings menu and choose to play automatically. Choose the number of rounds to play in AutoPlay mode, or see Advanced Settings to configure AutoPlay options.
	Click the left or right arrows to flip through the PAYTABLE pages . Click the x button to return to the game.
	Click here to view the Paytable.

Game Settings Options

To access the game settings, click the wrench icon on the game panel.
Quick Spin . Turn quick spins on or off. (Not available on all carriers.)
Intro Screen . Turns the intro screen on or off.
Spacebar to rotate . Turns the spacebar function on or off.
Game History . Click to view your last game history.

Advanced Autoplay Options

To adjust advanced AutoPlay options, click AUTOPLAY , then click Advanced Settings .
With any win . Stop autoplay when you win a round.
If the Bonus Feature is won . Stops AutoPlay if a Bonus Feature is won.
If a feature is won . Stops autoplay if any feature is won.
If the single win exceeds . Stops autoplay when the amount you've won equals or exceeds the amount you specify.
If the player wins . Stops AutoPlay if the player wins the specified amount.
If the player loses . Stops AutoPlay if the player loses the specified amount.
Click Reset to remove all Stop Autoplay options.

Note: If you disconnect while playing a game, all AutoPlay settings will return to default when you reload the game.

Note: Some auto-start options are mandatory in some jurisdictions.

Additional information

The following game features and settings may be subject to the terms and conditions of the casino operator's website. For more information, please visit the Casino Operator's website:

The procedure used to manage unfinished game rounds.
The time after which inactive game sessions end.

In the event of a malfunction in the game hardware or software, all affected bets and payouts will be voided and all affected bets will be refunded.

Refund to player

The theoretical return to players of this game is 96.00%.
The theoretical return to player in this game when the Bonus Bet is activated is 96.23%.

Last modification date: 9/19/2025