Onii-chan Asobo
"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.
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About Onii-chan Asobo
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
Game details
Game details
Age ratings
Game modes
Languages
Onii-chan Asobo price history
Lowest tracked price: £6.99 (Jul 7, 2026) · current best: £6.99.
Onii-chan Asobo player count & reviews
73% positive reviews all-time · 1 peak players in the last 30 days.
Onii-chan Asobo — frequently asked questions
Where can I buy Onii-chan Asobo at the cheapest price?
Right now the cheapest offer for Onii-chan Asobo is £6.99 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price Onii-chan Asobo has ever been?
The lowest price KingsPrice has tracked for Onii-chan Asobo is £6.99 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How many people play Onii-chan Asobo?
Onii-chan Asobo peaked at 1 concurrent players on Steam in the last 30 days (highest on Jul 21, 2026). The player chart on this page updates daily.
How can I get Onii-chan Asobo at a discount?
Create a free price alert on this page and KingsPrice will email you when Onii-chan Asobo drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
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
