PlayableWorld AI is an AI world generator that turns a sentence or a photo into a playable 3D world you can walk through, then export to Unity, Unreal, or Blender. Worlds are built with World Labs Marble: start from a text description or an image, review each step, and export the result as SPZ or PLY Gaussian splats, a collider GLB, a high-quality GLB on Pro or Studio plans, or a 360-degree panorama. A world screenshot can also be sent into the studio video tool as a first frame to animate a view. Eligible verified accounts receive 30 free credits with no card, enough for a Marble Draft, while the Starter plan costs $35 a month. Paid plans include commercial use of generated outputs, subject to the rights in the inputs, while the free plan is for personal use. Note that Google Genie 4 is listed on the site as coming soon and is not yet playable here. It suits game developers, filmmakers, and creators prototyping explorable scenes without building geometry by hand.