Meta’s Horizon Worlds Desktop Editor now lets creators AI-generate island environments, and can allow them to add conversational AI NPCs “very quickly”.
What Is Horizon Worlds Desktop Editor?
Horizon Worlds Desktop Editor is a flatscreen Home windows PC software Meta launched in early entry in February, alongside deprecating the in-VR creation instruments of Horizon Worlds.
The editor presents the flexibility to import 3D property, pictures, and sound information, place them in a 3D panorama, and implement recreation logic and different performance utilizing TypeScript, a preferred offshoot of JavaScript. These worlds are then instantly playable and multiplayer-capable in Horizon Worlds.
Within the US, UK, Canada, EU, Australia, New Zealand, creators can even AI-generate 3D meshes, textures, skyboxes, sound results, ambient audio, and TypeScript.
You possibly can obtain Horizon Worlds Desktop Editor right here.
The brand new options come simply weeks after Meta added Creator Assistant, an AI agent able to performing many improvement duties inside Horizon Worlds Desktop Editor, in addition to answering questions on what’s doable and the best way to do it.
Horizon Worlds ‘Creator Assistant’ AI Agent Automates Improvement
Meta’s Horizon Worlds Desktop Editor now has ‘Creator Assistant’, an AI agent able to performing many improvement duties.
Island Surroundings Era
Again in Could, Meta first teased that Horizon Worlds Desktop Editor would get the flexibility to AI-generate total 3D worlds.
Then, in June, the corporate revealed that this function could be known as Surroundings Era, teased instance generations, and stated it could launch “very quickly”.
Meta’s June tease of Surroundings Era.
Now, the function has arrived – however in a notably restricted type.
Because it seems, there was a purpose Meta solely shared examples of islands. Surroundings Era is, in its present type, solely an island generator. That is the one ‘Generator’ out there immediately.
You because the creator specify the island’s width, size, form, variety of buildings, and constructing fashion utilizing conventional UI parts.

For the form, you select between Spherical, Crescent, or Ring. For the constructing fashion, there’s Tropical Hut, Surf Shack, Coastal Cottage, and Log Cabin.
The fashion and variety of bushes, grass, and rocks are determined by the AI, based mostly on the textual content immediate you enter.




It takes a couple of minutes to generate the island, in my testing, and every tree, constructing, and dock is a separate entity within the editor, so you’ll be able to customise the generated island manually utilizing the normal editor UI instruments. It is not only one big mesh.
Conversational AI NPCs “Very Quickly”
Meta first teased AI NPCs for Horizon Worlds at Join 2024, they usually’re already out there to pick out Meta-partnered creators. They’re powered by Meta’s Llama 4 giant language mannequin, and have contextual data of the world they’re in.
In the event you’re within the US and Canada, you’ll be able to attempt speaking to Horizon AI NPCs already immediately in Bobber Bay Fishing, for instance.
Meta’s AI NPC tease at Join 2024.
Now, virtually a 12 months after the announcement, and some weeks earlier than Join 2025, Meta says all Horizon Worlds creators will have the ability to add AI NPCs “very quickly”.
“With the ability to seamlessly combine distinctive characters and charming dialogue, you’ll be able to elevate gameplay by providing gamers useful context, witty banter, hints on the place to discover and what actions to take, all whereas deepening the lore of your world.”
To customise the persona of every AI NPC, Meta is updating the Character Builder instrument, beforehand used for normal NPCs, to incorporate traits like title, backstory, directions, and guardrails.
You may additionally have the ability to select between dozens of artificial voices for every AI NPC, and modify the velocity and pitch.
The way you add AI NPCs in Horizon Worlds Desktop Editor.
Later this 12 months, Meta says it’ll additionally let AI NPCs set off “in-world actions”, making them energetic individuals within the digital world.
The corporate hasn’t but stated whether or not the aptitude might be restricted to the US & Canada.