Roblox has announced Build, a mobile-first AI creation tool that allows users to generate playable games from text prompts directly within the Roblox app. The company is also releasing a new suite of AI-powered tools for professional creators within Roblox Studio. Public alpha testing begins July 28, initially limited to users in New Zealand.
Build integrates with Roblox Studio through a shared backend, model infrastructure, and chat history, allowing creators to move between the mobile app and the full desktop environment without losing progress. The tool handles gameplay mechanics, environment design, characters, visual style, and audio generation, drawing on a combination of open-source models and proprietary Roblox AI systems trained on a large dataset of 3D models and gaming-specific content.
Games created through Build will be subject to the same safety review process and retention-based discovery ranking applied to all Roblox titles. Published games will be available globally to age-verified users 16 and older. A base version of Build will be free, with paid options available for more advanced use.
For professional creators, Roblox is shipping three additional AI agents over the coming months: a playtesting agent that identifies bugs before public release, an analytics agent that answers plain-language questions about game performance, and an experiment agent that recommends tests to improve engagement, retention, and monetization.
The company also highlighted Cube, its 3D foundation model that converts text prompts into functional in-game objects including vehicles and weapons, alongside Procedural Models for parametric asset generation. A scene-generation model capable of producing full editable 3D environments from a single prompt is described as coming soon.
Roblox currently serves 132 million daily active users. The company said discovery systems will continue prioritizing games based on long-term player retention regardless of how they were created.
