3D world builder

3D World Builder — Make a Walkable World in the Browser

Type one line about a place. What comes back is a 3D world you can walk through — not a skybox, not a level-editor tutorial.

Liyue Harbour — Three plates, one harbour: a lantern avenue, a tea stall, a pond with a boat. — **Liyue Harbour** — Three plates, one harbour: a lantern avenue, a tea stall, a pond with a boat.

Liyue · Zhongli — Walk in and he asks what holds your city up. Two replies, both written by the world. — **Liyue · Zhongli** — Walk in and he asks what holds your city up. Two replies, both written by the world.

Liyue · placing a gate — The paifang goes down where you click, and the island keeps it. — **Liyue · placing a gate** — The paifang goes down where you click, and the island keeps it.

Hasegawa Courtyard — School block, cherry trees, a chalk court, the last light in the yard. — **Hasegawa Courtyard** — School block, cherry trees, a chalk court, the last light in the yard.

Hasegawa · Hori — After the bell: trees or benches. She has an opinion about both. — **Hasegawa · Hori** — After the bell: trees or benches. She has an opinion about both.

Hasegawa · planting — Drop a cherry tree on the field and it sits in the grass, not on top of it. — **Hasegawa · planting** — Drop a cherry tree on the field and it sits in the grass, not on top of it.

Shibuya Crossing — Zebra stripes, four screens, a back alley and a shrine above the noise. — **Shibuya Crossing** — Zebra stripes, four screens, a back alley and a shrine above the noise.

Shibuya · Gojo — He wants to know what you will put in the crossing you just built. — **Shibuya · Gojo** — He wants to know what you will put in the crossing you just built.

Shibuya · a new screen — A neon billboard goes up between the vending machines. — **Shibuya · a new screen** — A neon billboard goes up between the vending machines.

LIVE PROOF

See the work live.

Open the work and use it here.

One builder, three worlds.

Neta Studio is an AI world builder — cast, props and playable 3D scenes in one place. The worlds on this page are the same builder with different inputs: a harbour, a schoolyard, a crossing. Walk the Liyue build.

Islands, not a blank plane — Each world arrives as a few plates you orbit, rename and extend. Landmarks sit on the ground they belong to.
A palette you can click — Six pieces per world, placed where you click, counted and kept. The same click works under a thumb.
Walk it before you share it — Drop into third person, talk to the NPC, find the three hidden things, then send the link.

Questions, answered.

Do I need to install an engine?

No. The world is built and played in the browser tab — orbit, zoom, place, walk. Nothing to download, no account required to look around.

Is this a game engine or a world builder?

A world builder that hands you a playable scene. You are not wiring nodes or writing shaders; you describe the place and then move its pieces.

Can I build a world from a series I like?

Yes. Name the place and its cast — a harbour with a consultant in a black coat, a schoolyard with two students who argue about benches. The art is built to match, not pasted in.

How big can a world get?

It starts with three islands and grows by adding plates and landmarks. A single plate is about a two-minute walk across.

What does "walk this island" actually do?

It drops the camera to third person inside the plate you picked. You walk with WASD or by clicking the ground, and the NPC will start the conversation when you get close.

Does it work on a phone?

Yes. Orbit, zoom, place and walk all have touch controls; the HUD stacks and the palette scrolls sideways instead of wrapping.

Can I share or host the result?

Each build publishes to its own URL. Send it like a link — it opens in a browser, no install on the other end.

Do I have to know Three.js?

No. If you do, you can open the source and keep building; the geometry and materials are yours once the world exists.

Start with one island.

One line for the place. The first landmark goes down in a click.

Build a World