Roblox is putting AI game creation inside its mobile app, giving more people a faster way to turn a written idea into a playable experience without starting in Roblox Studio.

The company will begin a public alpha of Build in New Zealand on July 28, 2026. The mobile-first AI tool turns text prompts into playable games inside the Roblox app and will include publishing among its selected early features.

Build adds a creation tab to the mobile app. A user can describe a game in ordinary language, and Build will generate an initial project with gameplay mechanics, environments, characters, visual styling, sound, and other elements.

Creators can playtest the result, request changes through chat, share the project with friends, or continue working in Roblox Studio. Build and Studio share the same back end, models, and chat history, so a project started on a phone can move into the company’s more advanced desktop tools.

Roblox is positioning Build as an easier entry point for people who have a game idea but don’t already use Studio. The creation platform reports 132 million daily active users and wants more of those players to become creators.

The initial rollout will remain limited. During the New Zealand alpha, Build is scheduled to be available to age-checked users 9 and older, although age requirements may vary by region.

Roblox is positioning Build as an easier entry point for people who have a game idea but don’t already use Studio. Image credit: Roblox

Build-created games that pass Roblox’s safety checks will be available worldwide to age-checked users 16 and older. Games must also complete Roblox’s extended review process before entering its Kids or Select catalogs.

Roblox plans to expand Build to more creators and regions after the New Zealand alpha, but it hasn’t announced a broader rollout schedule.

Build combines open-source models with Roblox’s proprietary AI systems. Roblox says its models use gaming-specific data and a large collection of 3D models to generate functional objects and scenes.

Roblox is also developing AI tools for professional creators. Planned agents will identify bugs, answer plain-language questions about analytics, and suggest experiments tied to engagement, retention, and monetization.

Some of the underlying technology is already available. Procedural Models generate adjustable 3D assets from text or images, while Roblox’s Cube foundation model can create functional objects, including vehicles that drive and weapons that shoot.

Roblox also plans a scene-generation model that will create editable, playable environments from a single prompt. The company hasn’t announced a release date.

Faster creation puts more pressure on discovery

Faster game generation could increase the number of repetitive or unfinished projects competing for attention. Roblox addressed that concern directly in its announcement.

The company said its discovery system prioritizes long-term retention, which Roblox argues excludes what it called “AI slop,” and Build-created games will compete in the same candidate pool as other experiences.

A basic version of Build will be free, with paid options planned for creators who need additional capabilities. Image credit: Roblox

Roblox argues that games that fail to attract players will remain difficult to discover under its retention-based ranking system. Faster generation could still leave Roblox with more projects to review, rank, and moderate as Build reaches additional markets.

A basic version of Build will be free, with paid options planned for creators who need additional capabilities. Roblox hasn’t disclosed pricing or identified which features will require payment.

Build can shorten the path to a first playable project, but generating a game isn’t the same as making one people want to keep playing. Roblox’s discovery system will help decide which Build projects find an audience and which disappear into the platform’s growing catalog.