yoshio's Hidden RoomAbout and how to play
yoshio's Hidden Room is a free browser puzzle game about exploring a fictional Japanese personal website from 2003. Follow links, diaries, message boards and hidden files to connect clues and uncover its story.
Free to play · No installation · Tap controls on mobile
What kind of game is it?
A personal website stopped updating on July 12, 2003. Beneath its nostalgic links and message boards are diaries and files someone left behind. This single-player exploration game asks you to read carefully, observe your surroundings and connect clues.
- Explore an early-2000s personal website inside an Internet Explorer style virtual browser.
- Investigate diaries, message boards and hidden files, then use your discoveries in another place.
- In the annex, use found objects, cards and a photograph to notice changes in a repeating corridor.
- The secrets you find and records you recover affect the final letter and ending.
Empty spaces reminiscent of the Backrooms, rooms with the same number and a stopped clock: the annex's strange scenery connects to the website's story.
How to play, without spoilers
- Choose Start exploring, then tap links and objects that catch your attention.
- Use Source and Files to inspect a page or your inventory. Number keys and word tiles let you answer puzzles by tapping.
- Read clues and follow them to other pages. The annex has an investigation notebook and optional hints.
Take your time. A wrong answer in the annex keeps your completed investigation, so you can inspect the same place and try again.
Frequently asked questions
Is it free to play?
Yes. The game is free and displays advertisements. No app installation or account registration is required.
Can I play on a phone?
Yes. The main puzzle route and annex investigation work with taps in a smartphone browser. Text selection and keyboard input are optional. You can also play on a computer.
Can I resume later?
Progress saves automatically and can be resumed in the same browser. When a connection is unavailable, it saves locally. Clearing browser data or using private browsing may lose your progress.
Is it a horror game?
It includes unsettling empty rooms, repeating corridors and unexpected messages. The game plays audio, so adjust your volume before exploring.
Is this an actual website from 2003?
No. This is a work of fiction inspired by personal websites and internet culture of the early 2000s, rather than an archive of a real site.
Is the whole game in English?
The entry page and controls have an English version. Some in-game story text and notes remain in Japanese.
About the work and its creator
This is a work of fiction. 2003 is the story's setting, not the release year.
Created and operated by: Karou（過労） / @karou2rikon
For information about ads, analytics and automatic saving, open About this site on the entry page.