Koikatsu Party Review

Koikatsu Party is a 3D anime dating & sex simulator developed by Illusion, the makers of AI Shoujo. Originally released in Japan on the 27th of April 2018, the game was localized and released on Steam on the 10th of June 2019.

Live a carefree life attending a girl-only school as the only male student. Open up the Koikatsu club and start inviting girls to it. Talk to them, get to know their interests, and build a relationship with your fellow schoolmates to win their hearts. In Koikatsu Party you can create countless dream waifus using the game’s robust character maker!

Table of Content:


Koikatsu Party Gameplay

Koikatsu Party is a massive dating simulator where you go around a school talking to girls. Guided by a colorful story told using a visual novel format, your objective is to build a strong relationship with as many girls as possible.

Approach a girl of your interest and start having a simple conversation with them. The girls present different questions regarding various topics of their interest and based on their unique personality, your answers may or may not please them. By mastering the girls’ interests, you will be able to answer their questions correctly. With each conversation had, your relationship meter fills up, and once the meter is full, the relationship with the girl advances to the next level until sex becomes an option. This is the main gameplay loop of the game.

Koikatsu Club

Eventually, you will be able to invite the girls to your Koikatsu club which acts as the base of operation to your dating circle. At the end of each school day, the girls will gather at the club room to hang out where you can take on the opportunity to teach them about sex.

Sex can be had even without the Koikatsu club, and actually, in no way is it crucial to the gameplay at any point. The club simply acts as a theme for the game itself, though this is an unfortunate wasted opportunity to create meaningful gameplay mechanics around such an interesting concept.

Sex Simulator

The main reason to get Koikatsu Party is its highly advanced sex simulator where you are given the freedom to enjoy high-quality 3D Hentai to your heart’s content!

Once your relationship with a girl is high enough sex becomes an available option to request without getting rejected any longer. In case you would like to skip the whole dating part, there is a way to simply jump straight to sex with your desired female character through the main menu.

Great performance during sex will help unlock new sex poses and toys, thus making things more interesting the second or third time around with the same girl.

The characters tend to act uniquely during sex based on their designated personality. Their experience also determines whether or not they are okay to do certain things with you. With more experience, the girls will grow to be more willing to fulfill your perverted desires.

Koikatsu Party also features lesbian action. Though this is not nearly as impressive as the straight sex due to the lack of sex poses, it is a welcome addition nonetheless. There are paid DLCs that can help to fix this issue, but as of writing this, they are currently Japanese exclusive.

During your exploration around the school, it is possible to discover students kissing in private. If you can sneak close enough without alerting them of your presence, you get to enjoy their lewd show in more detail.

Character creator

Koikatsu Party offers one of the best character creators known to date! Even though its strong anime style might not impress every gamer out there, never before has there been a character creator so advanced with almost infinite possibilities to create a dream Waifu!

You are free to customize almost every part of the human body, with an abundance of options to throw on top of it to stylize your characters. Though the game may limit the player from creating absolute freakshows, it still provides a very generous freedom to create just about anything.

Koikatsu Party does not shy away from allowing the player to create questionably young-looking characters. The general age of the students in the game may be questionable, to begin with, but you can go even lower than that to a point where there is little left for the imagination.

Due to the nature of the students featured in the main gameplay, the school dating portion was cut out from the Steam version. However, Illusion does provide its Western audience the ability to download a free patch from their website that will nullify this censorship – (A steam guide to patch the game).

Once you are done with customizing your dream Waifu, you are able to put your girl out in the world for everyone else to download and use in their own game! Koikatsu Party supports online character sharing via in-game. This feature of shared characters is easily one of the best parts of Koikatsu because it allows you to discover other people’s amazing creations, import them to your game, enjoy them, and even continue to customize them further to your liking without having to start from scratch.


Koikatsu Party Mods

For those who enjoy playing with mods, ManlyMacro is your best friend! This person has worked hard to deliver players of Koikatsu the opportunity to increase the number of possibilities in creating your ultimate dream Waifu!

The mods bring quality-of-life improvements to the Koikatsu character creator, as well as a great increase in clothing and hairstyle options, some inspired by popular anime and video game characters. Not only this but you are also no longer restricted to realistic scales of the human body when manipulating the height of characters.

There is a lot to gain from mods, so much so that they feel like a must-have patch on top of the base game even when you first start out. They only add to the possibilities of enjoying the game even more without taking anything away from the original experience.


Koikatsu Studio

Koikatsu Studio (Also known as Chara Studio) is an extra program outside of the Koikatsu Party that unfortunately was not included in the Western version. However, ManlyMacro is yet again bringing you the solution to this problem by allowing you to download it along with the HF Patch.

Use Koikatsu Studio to create unique scenes utilizing all the assets from the main game. Just like the character creator, there are almost infinite possibilities for crazy and sexy scenes that you can create.

Illusion has worked on some extra exclusive assets into Koikatsu Studio, meaning, on top of the main game assets, you get to play with some original ones as well. There are things like Mechas, tentacles, crazy naked old men, and a lot more!


Koikatsu Party is an easy recommendation for anyone looking for a high-quality Waifu maker with a bit of dating on the side and an advanced sex simulator to spice things up. The number of possibilities to create almost whatever kind of character your heart desires is simply amazing and well worth the price of the game alone. The amount of adult content the game can provide through its many unique characters seals the deal even further. Even though Koikatsu Party is not without its flaws, this is arguably one of the better AAA-priced adult games out there!

For more exciting 3D dating games, check out AI shoujo. For more 3D sex simulators, take a look at Fallen Doll: Operation Lovecraft and Succubus Cafe.

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