HIROMI ISHINO

Nov 2026

How this island was made

I grew up loving RPGs, part of the generation that watched games move from 2D to 3D. But I only ever played them. Making one myself never crossed my mind.

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Then, in 2024, large language models arrived everywhere. I may have come to them late. Still, a thought appeared: maybe even I could build something like this.

Since founding my company in 2025, I've made all kinds of things. This island is the first time I set out to build a proper portfolio of my own.

Where I learned

By talking things through with AI, studying the work of creators at the very front of the field, and doing a lot of learning on my own.

Bruno Simon's portfolio in particular showed me that a portfolio could be a world you walk through.

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What I told the AI

"Make it look nice" doesn't build anything. What I had to say was closer to this:

  • 3D rendering (Three.js)
  • Physics (Rapier), and how steep a slope can be before you can't climb it
  • A day–night cycle and fog
  • How the camera follows the traveller
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Day turns to night every four minutes.

What was hard

With the mountain at 60 degrees, the traveller slid down at full speed. No matter what I did, nobody could reach the summit.

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Meadow covered half the island. It was, honestly, a boring world.

BEFORE
AFTER

You could walk all the way somewhere and find nothing there. So I added a harbour town, an old graveyard and a spring where dragons drink, and made something happen at every place you arrive.

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It's still a work in progress.

Built with

  • Three.js
  • Rapier
  • GSAP
  • Cloudflare Pages
  • Claude Code
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Hiromi IshinoRepresentative Director, Trimora Inc.

Thanks to Bruno Simon, whose work showed me what a portfolio could be. Back to the island →