"Let's play Onii-chan" is a Slice of Life/Eroge Kinetic Novel about a developer of AO-rated games and his younger sister, who wants to become a developer too and intends to learn by doing things.
All Reviews:
Mostly Positive (331) - 72% of the 331 user reviews for this game are positive.
Release Date:
Sep 27, 2019
Developer:
Publisher:
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Mature Content Description

The developers describe the content like this:

All the characters in "Onii-chan Asobo" are over 18 years old.

Mature content intended for adults only: scenes of sexual nature and consensual sex. The text contains scenes of sexual nature and detailed consensual sex descriptions.

About This Game

Genres: Kinetic Novel, Eroge, Slice of Life, Romance.

Koichi Akiyama, an ordinary 22-year-old game developer, has been living a boring life until one day his younger sister Ai paid him a visit.
Soon after Ai moves in with Koichi, she claims that she wants to become a game developer too, so her brother has to teach her everything he knows.
The only problem is that Ai wants to create Hentai games, which puts Koichi in a dubious position.
From now on these two need to learn how to work together and explore all the difficulties of writing Hentai stories.


  • HD 1080p window & full screen options
  • 50+ Beautifully illustrated CGs
  • Original Soundtrack

System Requirements

    Minimum:
    • OS *: Microsoft® Windows® XP
    • Processor: Intel® Pentium® IV
    • Memory: 2 GB RAM
    • Graphics: DirectX® 9.0c compatible
    • DirectX: Version 9.0
    • Storage: 1 GB available space
    • Sound Card: DirectX® Compatible
    Recommended:
    • OS *: Microsoft® Windows® 7, 8, 10
    • Processor: Intel® Pentium® V
    • Memory: 8 GB RAM
    • Graphics: DirectX® 9.0c compatible
    • DirectX: Version 9.0
    • Storage: 1 GB available space
    • Sound Card: DirectX® Compatible
* Starting January 1st, 2024, the Steam Client will only support Windows 10 and later versions.

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