Oiran Hearts is the latest release from games developers Winfast. Oirans were high-class courtesans and sex workers in Japanese culture, and this slot seems to offer a modern take on the concept. In this Oiran Hearts slot I’ll give you my honest thoughts on the game, its design, bonus features and more. The most notable feature of the game is the Doki Dice roll, which is triggered by landing a series of cluster symbols to fill up a meter. A die (or multiple dice) is rolled to determine how many Wild Multipliers will land on the reels, hopefully giving you a chance to increase your wins. This game has a maximum payout of 5,000x your bet, and an RTP of 96.36%.



Oiran Hearts is a cluster pays slot played on a 7x7 grid. To achieve a win, you’ll need to land five or more matching symbols in a cluster (aligned horizontally or vertically). After a win, winning symbols disappear and are replaced by new symbols cascading down from the top.
The minimum bet in this slot game is £0.20 and the maximum bet is £5. The RTP of Oiran Hearts is 96.36%.
There are lots of different online casinos where you can play Oiran Hearts. Here is my pick of the best slot sites:



Oiran Hearts is a bright, colourful slot game inspired by the oiran of Japan. Its design, with female anime-style characters looking mildly provocative, makes more sense within this context, and the addition of cherry blossom trees and paper lanterns in the background fit with the Asian theme. The bright symbols on the reels are reminiscent of Japanese kawaii culture, with its lovable animal characters.
Let’s take a look at the standard symbols on the reels in the Oiran Hearts slot. Note that only the highest payouts are shown below, but wins can be achieved for clusters of five symbols or more. The full paytable can be found by clicking the burger menu (three horizontal lines at the bottom left of the game screen), clicking the ‘i’ button and scrolling down.

Green bird
45+ symbols = 40x bet / 41 - 44 symbols = 20x bet / 38 - 40 symbols = 10x bet / 35 - 37 symbols = 8x bet

Yellow bird
45+ symbols = 40x bet / 41 - 44 symbols = 20x bet / 38 - 40 symbols = 10x bet / 35 - 37 symbols = 8x bet

Pink bird
45+ symbols = 60x bet / 41 - 44 symbols = 30x bet / 38 - 40 symbols = 15x bet / 35 - 37 symbols = 12x bet

Purple bird
45+ symbols = 60x bet / 41 - 44 symbols = 30x bet / 38 - 40 symbols = 15x bet / 35 - 37 symbols = 12x bet

Green leaves (clusters of the same symbol only)
45+ symbols = 90x bet / 41 - 44 symbols = 45x bet / 38 - 40 symbols = 25x bet / 35 - 37 symbols = 20x bet

Yellow flower (clusters of the same symbol only)
45+ symbols = 90x bet / 41 - 44 symbols = 45x bet / 38 - 40 symbols = 25x bet / 35 - 37 symbols = 20x bet

Purple flower
45+ symbols = 120x bet / 41 - 44 symbols = 60x bet / 38 - 40 symbols = 30x bet / 35 - 37 symbols = 25x bet

Pink flower
45+ symbols = 200x bet / 41 - 44 symbols = 100x bet / 38 - 40 symbols = 50x bet / 35 - 37 symbols = 40x bet

Butterfly Bonus
Triggers the free spins round (more on that later), as well as awarding a prize of up to 2x your bet for five matching symbols anywhere on the grid. Wilds are represented by hearts.
Oiran Hearts can be played on desktop, mobile or tablet, and uses HTML5 technology for smooth performance on your chosen device. The slot looks great on smaller screens, with no distortion or loss of quality.



The Oiran Hearts slot game has a few bonus features to discover. Here’s some more information about them:

A meter to the left of the screen is filled up when winning clusters are formed. Any new wins that occur as part of the current cascade will also fill up the meter (but if no new wins are formed, the meter resets to zero).
Once the meter is full, the Doki Doki Dice feature is triggered. Note that the meter has five different levels; the more winning symbols in your clusters, the higher the level. Subsequently, the higher the level you are on, the more dice can potentially be rolled at once.
A die (or multiple dice) will be rolled on screen, and the number it lands on is the number of Wilds that will be added to the grid. These Wilds have multipliers of between 2x and 10x, which are applied to any wins they form a part of. They will continue to appear on the reels until no new wins are formed.
The free spins round is triggered by landing three or more butterfly Bonus scatters anywhere on the grid on the same spin. The more scatters that trigger the round, the more free spins you will be awarded - up to a maximum of 12 free spins for five scatters. During Free Spins, less symbols are required to trigger the Doki Doki Dice feature, and the number of dice to be rolled increases.
When a winning combination includes a Wild symbol and the symbols are removed, there is a chance for a new Wild to appear in one of the empty spaces. This new Wild may also come with a multiplier.
Oiran Hearts is an unusual slot game - not least because of its slightly controversial theme, and its female characters next to the reels looking slightly provocative. However, games like this can be an interesting way to learn about other cultures – I for one was not aware of the history of the oiran, plus other details. For example, ‘Doki Doki’ is a Japanese phrase that refers to the beating of a heart, often associated with falling in love. It’s clear that a lot of thought has gone into this game and its design.
In terms of gameplay, I always enjoy a game with a meter to fill. I liked how there are multiple opportunities for progression within the game, with the potential to unlock more dice depending on how many symbols fill the meter.
It would have been nice to see a slightly increased RTP and maximum win, since 96.36% and 5,000x bet are a little on the low-to-average side. However, all in all this is an original slot game that is highly appealing, particularly to players interested in Japanese culture.
Rating: 8.0
Here are some of the most common questions about Oiran Hearts.