Roblox Build Lands July 28 - Type a Prompt, Publish a Game From Your iPhone

Roblox Build arrives July 28. Anyone with an iPhone, iPad, or Android phone can type a text prompt and generate a starter game to share or publish - no Mac, no download, no Lua scripting required. For the first time in Roblox's 20-year history, game creation leaves the desktop. A New Zealand public alpha opens that day for age-verified users nine and older.

Build Lives Inside the Existing Roblox App, Not a New Download

Sitting inside the existing Roblox app as a new creation tab, Build doesn't require a separate download - anyone who already has Roblox installed gets the feature automatically. Creators start work on mobile, then move to Roblox Studio on desktop to refine it; both tools share a backend, model history, and chat context, so nothing is lost switching devices. A base version will be free. Roblox plans paid tiers for power users, with no pricing announced yet.

Roblox's AI Handles Mechanics, Environments, and Sound in One Pass

Build runs on a blend of open-source models and Roblox's own proprietary AI, trained on a large library of 3D game assets. Generic text or image models cannot produce functional 3D objects that slot into a working game engine and respond correctly when a player interacts with them. Roblox's can. A prompt like "cozy forest adventure with environmental obstacles" generates terrain, characters, sound, and gameplay mechanics in a single pass.

Three Professional Creator Tools Are Coming for Studio

Along with Roblox Build, Roblox is shipping three agentic AI tools for Studio over the coming months: a playtesting agent that catches bugs before any player touches the experience, an analytics agent that answers plain-language questions about game performance data, and an experiment agent that identifies tests to push up retention and monetization. No dates announced yet.

For established creators, that experiment agent is probably the most useful addition - Roblox's retention data has historically required custom dashboard scripting to surface. Most creators have never had direct access to it.

Studio Has Always Required a Mac, a Download, and Lua Knowledge

Studio needs a Mac or PC. Beyond that, creators need a separate download and enough Lua knowledge to script actual game logic - barriers that most of Roblox's 132 million daily active users have never cleared. Roblox Build targets exactly that pool, using AI to handle the parts that previously required code.

Roblox addressed the AI-quality concern in its announcement. Discovery ranking still runs on player retention metrics, so low-engagement experiences stay buried regardless of how they were made. Desktop creation tools moving to mobile is a broader trend - Cursor launched an iOS app in public beta just weeks ago, aimed at developers running AI coding agents from their phone.

Global rollout follows in the second half of 2026. Roblox has not set a date for that expansion, and the alpha will continue adding regions before then - including a scene-generation model that builds entire playable 3D environments from a single prompt.