Roblox Launches AI-Powered “Build” Tool for Mobile Game Creation
Roblox's new mobile-first Build feature lets anyone turn text prompts into playable games, entering alpha testing July 28 as AI game-generation tools spread across the industry.
Roblox wants game creation to work like texting a friend. The company announced Thursday a new feature called Build, a mobile-first AI creation tab inside the Roblox app that lets anyone turn a simple text prompt into a playable game.
The tool reportedly requires no programming experience: type a prompt describing a game idea, and Build generates a starting version to iterate on, playtest, and publish.
Build arrives alongside a broader suite of AI tools for professional creators inside Roblox Studio, the platform’s existing desktop software.
From Text Prompt to Playable Game
Roblox describes the process in concrete terms: a creator might type, “Let’s make a cozy adventure game set in a dense forest with environmental obstacles,” and Build generates a starting point to refine.
TechCrunch reports the tool generates gameplay mechanics, environments, characters, visual style, and sound within the Roblox app using open-source and proprietary Roblox AI models.
Roblox says its in-house models are trained on a large dataset of 3D and gaming-specific content, enabling them to generate functional 3D objects and complete scenes that integrate with existing creation tools.
Build shares the same backend, AI models, and chat history as Studio, allowing projects to start on a phone and continue on desktop, similar to the continuity introduced with the Claude Cowork web and mobile app launch.
Roblox confirmed Build will offer a free base-level version for all creators, with paid options for advanced users.
Guardrails, Age Limits, and the Road to Public Alpha
Roblox is rolling out the feature cautiously. Build features for Select accounts, introduced last month, including publishing, will enter public alpha on July 28 for users in New Zealand, with additional regions and capabilities planned in the coming months.
During alpha, Build will be available only to age-checked users 9 and older, while games created with the tool can reach a global audience only after passing Roblox’s safety checks.
The creator’s audience is also limited to age-checked users 16 and older.
Mashable notes that games built with Build still go through the same review process required for every Roblox experience before appearing in the platform’s Kids or Select catalogs.
They also compete in the same candidate pool as all other games, ranked by Roblox’s existing retention-based discovery system.
Industry Pushback and What Comes Next
Roblox isn’t alone in chasing prompt-based game creation. TechCrunch notes that Google, Microsoft, and even Meta have each built similar AI tools, and the trend has unsettled parts of the game development community.
TechCrunch cites this year’s Game Developer Conference State of the Game Industry survey, which found 52% of industry professionals believe generative AI is negatively impacting the industry, partly due to fears it will flood platforms with low-effort, repetitive games.
Roblox addressed that concern directly in its announcement, stating that its discovery systems are built to surface games with long-term player retention, which by design excludes so-called AI slop, and that unplayed games simply won’t be found.
Beyond Build, the company is developing agent-based tools for professional creators, including playtesting, analytics, and experiment agents to find bugs, analyze game performance, and improve engagement and monetization.
Source: Build Without Limits on Roblox
