Roblox has announced a new AI tool called Build, which lets users on its mobile app generate basic games from text prompts, part of the company's wider push to embed generative AI throughout its platform. Roblox says users will be able to type a simple description, such as a request for a "cozy adventure game set in a dense forest", and Build will generate a playable starting point covering gameplay mechanics, environment, characters, visuals and sound, which creators can then tweak before publishing.

Testing of Build, along with a new suite of AI tools within Roblox's existing Studio creation software, is due to begin on 28 July. Roblox insists the change won't flood its homepage with low-quality "AI slop", saying its discovery systems favour games with strong player retention regardless of how they were made. The company also revealed plans for further AI agent tools in the coming months, including one to catch bugs before players encounter them and another designed to identify ways of boosting engagement, retention and monetisation.