
Koi Princess is a medium-volatility online slot from Netent with an RTP of 96.23% and a maximum win of 500x/Spin.
NetEnt gives Koi Princess an anime-styled Japanese setting, with the princess herself watching over a 5-reel, 3-row grid running 20 fixed paylines. Card ranks from 10 through Ace fill the lower end of the pay table, a linked gold pendant symbol sits above them, and a frog and a lion symbol follow before the Koi Princess symbol itself, which pays 20x the stake for five of a kind. A wild symbol pays even more, awarding 25x the stake for five in a row.
A Bonus Bet option in the corner of the screen doubles the wager in return for better odds of triggering one of the game's random features on any spin, effectively an ante-style side wager rather than a separate mode of play.
Four random features can strike independent of the bonus symbols: one hands over a spin that's guaranteed to land a five-symbol win, another overlays four to nine random wilds onto a single spin, a third turns two to five whole reels wild for one spin, and the last plants three bonus symbols on the reels before randomly awarding one of the bonus rounds below.
The bonus round itself opens a different way: three bonus symbols need to land across the first, middle and last reel, and if only two appear, the game can nudge a third into place to complete the trigger anyway.
Landing that trigger leads to one of four rounds. Sure Win Free Spins deals 10 spins in which each result matches or exceeds the largest win already banked that session, aside from the opening spin, which simply returns the original stake. Wild Reels Free Spins also runs for 10 spins, turning one to five random reels wild on every one of them. The Bonus Wheel sends players to a three-tiered wheel of 12 sections per tier for coin prizes, with a chance to unlock either of the other free spins rounds along the way, while Coin Win pays out an instant coin prize on its own.
Koi Princess plays out at medium volatility with a 96.23% RTP, a per-spin cap of 500x the stake, and stakes from 0.20 up to 200 per spin, making the random-feature layer the main driver of variance in a session.
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Koi Princess has an RTP (return to player) of 96.23%. RTP is the theoretical percentage of total stakes a slot returns to players over a very large number of spins, as published by Netent — individual sessions can land far above or below it.
Koi Princess is rated medium volatility. Medium-volatility slots sit between the extremes — a balance of win frequency and win size.
The advertised maximum win for Koi Princess is 500x/Spin. Max wins are extremely rare by design — treat them as a ceiling, not an expectation.
Koi Princess is developed by Netent and was released in 2025.
Koi Princess plays on a 5×3 grid with 20 paylines.
Yes — you can play the free Koi Princess demo directly on this page. It runs Netent's own free-play version of the game with play money, so no account, deposit or registration is needed. Demo balances are not real and cannot be withdrawn.