Video Game Data

【Seductive Big Sister】 is a 3D interactive game, in the game, you play a newly released college student, your cousin took you to his house to play, in the his house, you met the sexy cousin's wife. And your sister gradually shows her hunger and thirst and has an unforgettable encounter with you 。。。

Developer: 18cmSam BananaKing

Publisher: ACG creator Playmeow Playmeow News

Release Date: Sept. 9, 2026

Genres: Casual RPG

Tags: 3D Atmospheric Casual Cinematic Colorful Cute Dating Sim FMV Hentai Immersive Sim Incremental Life Sim Nudity Psychedelic Relaxing RPG Sexual Content Third Person Top-Down Visual Novel

Reviews: 0 (Followers)

Followers: 4132

Platforms: Windows

Languages: Simplified Chinese*, English, German, Russian, Thai, Traditional Chinese<br>*languages with full audio support

Steam Achievements: None

Estimated Wishlists: 41,320

Seductive Sister on Steam

Categories: Family Sharing Single-player