nojo - a small 3D browser world to leave open while you work alone (Three.js, free)

[Banju]

Hi, I'm Banju from Seoul. I play piano and make videos, and I can't really code. I built this with a lot of help from AI (Claude Code and a few other models), so most of the code is AI-written and I steered it.

I work alone most of the time and it got lonely, so I wanted a place I could just leave open in a browser tab and feel other people around.

What it is:

A small top-down 3D world in the browser, no install, works on PC and phone. You can enter as a guest or with Google.

There's an office, a pub with a stage and a grand piano, and a nature zone. Voice only reaches people in the same zone, and text chat gets auto-translated, so people write in their own language.

You can sit at a desk and press Focus, then go back to your actual work. There's also a character creator and some silly physics (you can pick things up and throw them).

Tech side, in case it's interesting here: TypeScript and Three.js, no game engine. The server runs the world and the browser only sends intents. I described real places I'd been to (lighting, spacing) and kept adjusting with the AI until it felt right.

If I'm in there, I'll play you piano.

https://nojo.club/main

English isn't my first language, so AI helped with the wording too. Feedback on the first few minutes is very welcome. 

[manuelcondect]

Stayed a few minutes as a guest, and the welcome card with the controls and the things to try is the first thing on screen, which saved me from guessing - sitting at an office desk with F put my avatar in Focus with the tag under the name, exactly as the card promises. The part I could not work out is the translation: when I typed an English line the chat panel showed it with an 'Original' toggle and a Spanish translation underneath, so the target language looks like it follows the reader's browser rather than the writer's. Is that deliberate, and is there a way to pin it? I could read none of the Korean bubbles floating over the other people, and the settings panel only had the low graphics toggle, so I never found a language option.