Koikatsu (Koikatu! Party) is a Japanese character-creation and dating-sim game from Illusion known for its deep, slider-based avatar customization and built-in adult scenes. Because it's so flexible, fans mainly use it as an animation and screenshot tool to recreate characters from other anime and games rather than play its own story. Koikatsu hentai content usually means 3D renders or short animations made with the game's engine.
![[Peh-koi] have sex with Ryza in the American style](https://tophentai.com/wp-content/uploads/2025/10/Peh-koi-have-sex-with-Ryza-in-the-American-style.jpg)
![NTR drunk wives after festival (old) [Japs8005]](https://tophentai.com/wp-content/uploads/2025/10/NTR-drunk-wives-after-festival-old-Japs8005.jpg)
![NTR Date Sabotage (old) [Japs8005]](https://tophentai.com/wp-content/uploads/2025/10/NTR-Date-Sabotage-old-Japs8005.jpg)