The core function of Build is converting text or conversational prompts into playable starting points. A single prompt generates core gameplay, environments, characters, and visual style, with AI systems also producing sound and other audiovisual elements to match the described concept. The resulting game is immediately playable on the same mobile device, creating a direct feedback loop between prompt, generation, and testing.
Creators can then refine games through additional prompts or manual edits, enabling iterative development without requiring Roblox Studio on desktop. Finished games can be shared with friends or published to the wider Roblox platform for global discovery and play.
Iterative refinement happens through follow-up prompts or manual edits, with finished games publishable directly to Roblox’s global platform.
The workflow is contained entirely within the existing Roblox mobile application. Users access Build through a dedicated tab, enter a text description of the game they want, and allow the AI to construct an initial version. Playtesting, refinement, and publishing all occur within the same app, eliminating the need for external tools or a desktop environment.
This integration of creation, social sharing, and distribution into a single mobile experience is central to how Roblox has positioned the feature. The base-level version of Build is available at no cost, with additional paid options offered for power users seeking expanded capabilities.
Public alpha testing for Build begins July 28, 2026, with initial availability limited to users in New Zealand. During the alpha period, creation access is restricted to age-verified users aged 9 and older in that region.
Games created through Build are planned to be playable globally by users aged 16 and older, extending the audience beyond the creator base from launch. Roblox has indicated plans to expand access to additional regions and more creators in the months following the initial testing period, though wider global rollout dates have not been confirmed and expansion depends on ongoing refinement during the alpha.
The regional and age-based restrictions reflect a cautious rollout strategy for a tool that considerably expands what younger and less experienced users can produce on the platform. By beginning in New Zealand with a defined age group, Roblox can monitor how the AI generation performs in practice before broader deployment.
The combination of mobile-first access, AI-driven generation, and direct publishing to a global audience represents a notable shift in how the company is approaching user-generated content creation on its platform.
