Koi Princess slot review

Koi Princess slot game
★ 4.7/5by NetEnt
Provider
NetEnt
RTP
96.23%
Volatility
Medium
Max win
200×
Layout
5 reels × 3 rows
Win system
20
Released
23 November 2015
  • Wild substitutions
  • Free spins
  • Random features
★ Featured casinoCheck Koi Princess availability at Velobet – 330% + 300 Free Spins over 3 depositsVisit Velobet
Written byDaniel B.
Checked byOlivia C.
▣ Updated 9 November 2026

Koi Princess is a 5×3 NetEnt slot with 20 lines and a collection of random features selected by the game’s feature wheel. Its appeal comes from variety: wild patterns, coin wins, re-spins and Free Spins can interrupt the standard reel cycle.

Pros

  • 96.23% published RTP
  • The game includes wild substitutions
  • 200× stated maximum win

Cons

  • Medium volatility may not suit every session style
  • 20 win structure is fixed by the game
  • The RTP version can differ between casino integrations

Paytable explained

Koi Princess symbols and what they do

SymbolTypeRole in the game
Card ranksLow payStandard line symbols.
Festival objectsPremiumHigher-paying themed symbols.
Koi PrincessWildSubstitutes for regular symbols and appears in wild features.
Bonus symbolScatterThree trigger Free Spins.

Symbol values and feature rules can differ between mathematical versions. Confirm the paytable inside the game you open.

Where to play Koi Princess

Game libraries differ by country and provider agreement. Search the casino lobby for the exact title and check the in-game RTP before depositing.

  1. 1
    ★ 4.8/5

    Velobet welcome bonus

    Up to 330% across three deposits plus 300 free spins

    Best for mini-games
  2. 2
    ★ 3.3/5

    HadesBet welcome bonus

    Up to £15,000 plus 300 free spins across four stages

    Best for a large multi-stage welcome package
  3. 3
    ★ 3.2/5

    SlotLair welcome bonus

    Up to £3,000 plus 450 free spins across three stages

    Best for cards and crypto cashier options

How Koi Princess plays

Regular combinations pay from left to right across 20 fixed lines. Card ranks fill the lower end of the paytable, while themed festival symbols provide the stronger line values.

A random feature may be selected before or after a spin. The game can add wilds, convert symbols, award a coin win or start a re-spin, so two base-game rounds can follow different rules.

Three bonus symbols award Free Spins. The demo helps with the feature icons because several modifiers appear only briefly before the reels settle.

NetEnt released the game on 23 November 2015. Its 5 reels × 3 rows layout uses 20, with fixed paylines with several randomly selected base-game features. The provider does not currently offer an accessible official demo for this title.

Bonus features

Feature wheel

The wheel selects from several modifiers, including stacked wilds, wild reels, symbol transformations and coin prizes. It is random and cannot be influenced by stopping the reels.

Free Spins

The bonus awards a fixed sequence of free rounds and can include enhanced wild behaviour. The exact feature shown in the information panel should be checked because integrations can differ.

Wild substitutions

The princess acts as the main wild and can complete line wins in place of regular symbols. Some random events expand the number or position of wilds for one evaluation.

RTP, volatility and maximum win

Published RTP96.23%
VolatilityMedium
Maximum win200×
Layout5 reels × 3 rows
Win system20

The standard RTP is 96.23%. Progressive or locally configured versions may use different settings, so the in-game help screen remains the final reference.

Medium volatility is supported by frequent feature interruptions, but a random modifier can still return little. Feature frequency should not be confused with guaranteed value.

RTP describes a theoretical return across a very large number of rounds. It does not mean that a short session will return 96.23%. Volatility describes how unevenly results may be distributed, while the 200× maximum is a mathematical ceiling rather than a forecast.

Our Koi Princess verdict

Koi Princess offers more base-game variety than a conventional 20-line slot. The animation and feature wheel give it a playful rhythm without requiring a complicated pay system.

The trade-off is that the random features are uneven and some add spectacle rather than a large return. It suits players who value changing modifiers more than one dominant bonus round.

Koi Princess FAQ

What is the RTP of Koi Princess?+

The standard published RTP in this review is 96.23%. Check the in-game information panel because another approved configuration may be used.

What is the volatility of Koi Princess?+

Koi Princess is classified as a medium-volatility slot. This describes the long-term distribution of results, not what must happen in one session.

What is the maximum win on Koi Princess?+

The stated maximum is 200× of the stake. It is the game’s theoretical limit, not an expected or typical result.

How do wins form in Koi Princess?+

The game uses 20 on a 5 reels × 3 rows layout. The exact direction, minimum combination and exclusions are shown in its paytable.

Who developed Koi Princess?+

Koi Princess is supplied by NetEnt and was released on 23 November 2015.

Similar slots

Compare related games by the same provider or with a similar feature profile.