Focused idea
Experience probability without spending real money.
Games
Doronuma
Experience probability without spending real money.
A free fictional prize-draw simulator where you can keep drawing until you win.
01
About this work
A free fictional prize-draw simulator where you can keep drawing until you win.
This studio introduction is translated; the quiz itself currently opens in Japanese.
02
Made for
- People looking for a small, focused browser experience
- Anyone curious about independent Japanese web projects
- People who prefer trying an app without installing it
03
Highlights
Open in a browser
No account or app-store installation is required to open the experience.
Designed for everyday use
A compact experience built around one clear purpose.
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How to get started
- 01
Open the app
Use the link on this page to open the original app in a new tab.
- 02
Follow the in-app guide
Check the Japanese interface and any onboarding or notices shown there.
- 03
Return whenever you like
Bookmark the app or come back through this studio page.
05
How data is stored
Storage differs by work. Some settings and records may be kept only in your current browser; check the app’s own guidance before clearing site data.
Changing the display language on this studio site does not change or reset app data.
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Before you use it
The quiz interface currently opens in Japanese.
For location, transport, money or health-related information, check current official information and use your own judgement.
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Frequently asked questions
Is the quiz itself available in English?
Not yet. This studio introduction is translated, while the quiz currently remains in Japanese.
Do I need to install anything?
No. You can open the web app directly in a supported browser.
How long does it take?
About one minute.
08
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