Roblox announced a new AI-powered feature called Build on July 16, 2026, designed to let users create fully functional games on mobile devices using nothing more than text prompts, with no programming experience required (Roblox Newsroom).

Build is a new creation tab within the Roblox mobile app (Las Vegas Sun). The feature runs on a broad set of AI models, combining open-source and proprietary Roblox-built models, and handles gameplay mechanics, environment, characters, visual style, and sound (TechCrunch).

The feature enters public alpha testing on July 28, 2026, available to users in New Zealand aged nine and older who have completed age verification. During the alpha, users aged 16 and up will be able to publish their Build creations to a global audience (TechCrunch).

Roblox plans a tiered commercial model: a free basic version of Build will be available, alongside paid options. The company also disclosed that it will discontinue Roblox Connect, the avatar-based video calling feature introduced in 2023 (TechCrunch).

The New Zealand alpha serves as a geographically scoped test bed, a common approach for platform-level features that touch content moderation, safety, and creator economics at scale. Restricting publishing to users 16 and older during the alpha signals an awareness that AI-generated, globally publishable content from younger users carries distinct moderation challenges that Roblox is not yet prepared to open up broadly.

Roblox plans to rank AI-generated games based on player retention, meaning games that fail to attract and hold players will not be featured prominently in discovery. This differs from the traditional creator economy on Roblox, where discovery has been shaped by a mix of algorithmic recommendation and manual curation. A retention-first ranking system for AI-generated content effectively treats prompt-authored games as a commodity layer, where distribution is earned purely through engagement metrics rather than creator reputation or production effort. For the existing community of developers who build experiences in Roblox Studio using Luau scripting (Roblox's custom programming language) and the platform's full toolchain, this introduces a new class of zero-barrier competitors into the discovery pool.

Beyond the Build alpha itself, Roblox is developing a scene-generation model capable of producing entire editable and playable 3D scenes from a single text prompt. The company is also building AI agents to assist creators with playtesting and providing analytics, with both expected to roll out in the months following July 2026 (TechCrunch).

The scene-generation model, if it delivers on the promise of producing fully editable 3D scenes from text, would move the platform beyond the current Build paradigm, which assembles games from AI-generated components. A model that generates complete, editable 3D scenes in response to a single prompt is architecturally distinct from a multi-model pipeline that generates assets and assembles them. It implies a unified generative process operating on a scene-level representation rather than compositing individually generated elements. Whether the output quality will support meaningful iteration by creators who do want to go beyond the initial generation is an open question that the alpha will begin to answer.

The discontinuation of Roblox Connect is a quiet but telling marker of platform priorities. The avatar video calling feature launched in 2023 as part of a broader push into social and communication experiences. Its removal, announced alongside the Build launch, suggests Roblox is consolidating its investment around generative AI creation tools rather than social communication features. That is a strategic bet: that the long-term growth lever for the platform is lowering the barrier to content creation rather than deepening social interaction between existing users.

Taken together, Build, the scene-generation model, and the AI agents for playtesting and analytics outline a roadmap in which the distance between a creative idea and a published, playable, globally distributed experience approaches zero. The alpha starting July 28 in New Zealand will be the first real-world test of whether that compressed pipeline produces experiences anyone actually wants to play. The retention-based ranking system is, in effect, Roblox's answer to that question before it is even asked: let engagement decide.