psychological horror
Onii-chan Asobo
Koichi Akiyama's mundane life takes a wild turn when his younger sister Ai moves in, eager to learn the ropes of game development.
But Ai's ambitions lean towards the risqué, pushing the boundaries of brotherly love into tantalizing territory.
With over 50 beautifully illustrated CGs and a playful tease that escalates into steamy encounters, 'Onii-chan Asobo' invites you to explore the complexities of family ties and erotic storytelling.
$8.99
(USD)
Videos & Images
Take a look at what's happening in Onii-chan Asobo
Reviews Summary
Players are divided on 'Onii-chan Asobo', with many praising its beautiful art and playful teasing dynamics, while others criticize its short length and lack of meaningful choices.
The game is seen as a guilty pleasure, especially for those who enjoy its controversial themes, though some feel it leans too heavily into unsettling territory.
Overall, it's a mixed bag that appeals to a niche audience.
The Good
- Gorgeous artwork and illustrations
- Engaging teasing dynamics
- Perfect for achievement hunters
- Short but entertaining experience
The Bad
- Too short for the price
- No meaningful choices
- Some unsettling themes present
- Repetitive CGs and scenes
The Horny
- Incestuous themes are a major draw
- Teasing escalates to steamy encounters
- Perfect for those with an incest fetish
- Described as 'foreplay: the VN'
Top rated reviews
I was Horny Okay!?
I have an incest fetish.
Game Details
From the developer
"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.
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
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Comments (123)
Most recent community feedback.
Horniness scale
Each game gets a score from 1 to 5 hearts. Higher means more explicit adult content.
| Score | What it means |
|---|---|
| 1 | Raunchy / softcore — suggestive themes, light fanservice, or mature humor; little or no on-screen explicit sexual content. |
| 2 | Spicy but restrained — clear adult intent (nudity, strong innuendo, or brief suggestive scenes) without sustained explicit focus. |
| 3 | Clearly adult — recurring sexual content or nudity as a meaningful part of the experience, but not the sole focus of the game. |
| 4 | Strongly explicit — graphic sexual themes, extended explicit stills or text, or gameplay built heavily around adult situations. |
| 5 | Explicit and often animated — graphic sexual content that is frequently animated or interactive; core to what you see and do in the game. |
Zestine
Love the visuals and the side missions. The character banter is top tier.
Nyra
Story is solid and the combat feels great, just wish there was more UI customization.
Kiro
I keep coming back after every update. The new scenes were worth it.