The collaboration
World Labs builds Marble, a generative world model that turns text and images into explorable 3D environments. Rosebud is a browser-based, no-code platform where you add gameplay to those worlds with natural language. Together they cover the whole path from "imagine a place" to "play a game in it."
The project
To show the pipeline end to end, the teams built a multiplayer, Simon Says-style game — demonstrating everything from world generation in Marble to live, shared gameplay running inside Rosebud.
The creative and technical process
1. Scene generation. 3D environments were created in Marble from single images or text prompts, producing Gaussian-splat scenes with depth, geometry, and lighting.
2. Stitching. Multiple Marble scenes were combined in the Marble Composer to form one larger world.
3. Physics. A mesh-based collider was generated from the stitched scene and exported as a .glb file.
4. Integration. That collider mesh was imported into Rosebud.
5. Game assembly. Rosebud's AI assistant, Rosie, added the interactivity — player mechanics, environmental triggers, and VFX.
The result
A playable, multiplayer game built without a traditional modeling or engine-programming pipeline. As Jason Agbebaku of Rosebud put it: "You can create a world, add gameplay, and share it — all within minutes. That's the future of interactive creation."
Looking ahead
Next on the roadmap: native Marble integration inside Rosebud, multiplayer and VR experiences built on Marble environments, expanded World Labs templates, and performance improvements for larger, stitched scenes.
Try it yourself
Want to walk the same path? See how to turn a Marble world into a playable game in Rosebud, or read the original case study on World Labs.
Andi Bucescu
Andi is the Head of Marketing at Rosebud, where she writes about the intersection of AI, creativity, and brand storytelling. She explores how generative AI is reshaping marketing strategies and creative workflows, with a focus on making complex technology accessible and cutting through the noise of modern campaigns. Her perspective is informed by undergraduate research on effective social media content and consumer psychology.