AI 3D Worlds.
Explorable 3D environments from a single prompt or image. Full worlds, not just meshes.
World Labs Marble Plus generates entire navigable 3D environments from a text prompt or image. Not individual objects — complete worlds with depth, atmosphere, and camera-navigable space. Export for Unity, Unreal, or web-embedded 3D viewers.
Open 3D WorldsWorlds, not just meshes.
Text or image to world
Start from a description ("medieval castle courtyard at dusk") or an image. The model generates the full environment in 3D.
Navigable camera
Walk, fly, orbit. The generated environment supports free-camera navigation — not a static 3D snapshot.
Export for any engine
Export as a 3D scene for Unity or Unreal, embed in a web viewer, or use as a reference for traditional 3D production.
World Labs Marble Plus.
Marble Plus is the state-of-the-art for AI-generated 3D worlds. Unlike mesh generation (which produces individual objects), world generation produces complete environments — spatial, atmospheric, navigable. The model understands architecture, landscape, lighting, and camera-perspective geometry in one pass.
Try 3D Worlds
Game dev, architecture, XR.
Used for: game environment concepting (generate a playable greybox in seconds), architectural site context (drop your building into a procedural environment), XR brand experiences (immersive product showcases on the web). The applications span every design discipline that touches 3D space.
Camera controls and origin positioning.
Position the viewer's starting camera. Set navigation bounds. Add particle fade-ins for cinematic entry. Configure the skybox and lighting. Fine-grained control over the experience players and viewers have when they enter the world.
Export formats.
Scene files compatible with Unity and Unreal for game dev. Web-embedded 3D viewers for marketing sites. Static renders for pitch decks. The generated world is a real 3D asset, not a rendered video, so it's editable and reusable across contexts.
Frequently asked.
Ready to start? Jump straight in.
Every Stensyl plan includes every model on this page. From £8/month annual. No per-model fees, no surprise charges.