Roblox launches an AI powered game creation feature in its mobile app

11:22 AM · July 17, 2026

Roblox introduced a new feature called Build that lets users design games from their mobile devices using AI, according to TechCrunch, turning a simple text prompt such as a request for a cozy adventure game set in a dense forest into an initial playable version that users can then modify and share with friends. The feature is powered by a mix of AI models, including both open source and proprietary systems built by Roblox, and handles gameplay mechanics, environment design, characters, visual style, and sound generation from the prompt alone. Build will enter public alpha testing on July 28, limited at first to users in New Zealand aged nine and older who have verified their age, with users 16 and up able to publish their creations to a global audience; a wider rollout to iPhone and iPad users is planned before the end of 2026. Roblox is also building in a quality control mechanism, ranking AI generated games by player retention in the same way it already ranks other games on the platform, so a generated game that nobody actually plays will not be surfaced prominently even if it was easy to create. The launch responds directly to concerns raised by developers and players that lowering the barrier to game creation through text prompts could flood the platform with low effort, repetitive games, a tension Roblox is betting its retention based ranking system can manage.