Roblox Let New Zealand Prompt Games. 71% Had Never Used Studio.

TL;DR

Roblox opened Build, its prompt-to-game tool, to users in New Zealand on July 28. At RDC 2026 on September 11, the company said creators had used it to publish about 9,000 games, and that 71% of the people who made a game with Build had never used Roblox Studio. Build is now expanding to Serbia and Singapore, alongside standalone app exports and a wallet that pays creators every business day. All of this arrives while Roblox guides Q3 bookings down 14% to 18%, and investors still pushed the stock up more than 11% on Monday. For anyone building creation tools, the early numbers say the prompt box mostly recruits people who were not making games before. The problems left over are discovery, quality and compute.

What Build is

Build is a tab in the Roblox mobile app. You describe a game, Build generates a playable first version, and you playtest it, ask for changes in chat, and share it. Roblox's Q2 shareholder letter says it runs on "open-source and proprietary Roblox models" and turns prompts into a game "by automatically handling complex mechanics, coding, and analytics."

The age gates matter on a platform this young. Age-checked users 9 and older can create, and only age-checked users 16 and older can publish. A base tier is free, with paid tiers for power users, and the letter lists no prices. Build shares a backend, models and chat history with Studio, so a project started on a phone can move to the desktop editor without starting over.

The asset side leans on Cube, Roblox's 3D foundation model for turning prompts into game-ready objects, plus procedural models that generate parametric 3D assets. At RDC, Roblox added an asset library, desktop access and iterative control to Build. It also promised a Scene Generator that turns text prompts and reference images into full layouts later this year, and NPCs that can playtest games.

What 10 to 15 minutes buys you

Pocket Tactics writer Quinn Collins tried Build on an iPad at RDC and asked for "a cyberpunk farming simulator with a cast of NPCs that I could befriend." In about 10 to 15 minutes, Build produced the first basics: six NPCs and a six-plot neon farm with a seed-planting mechanic. It named the game Neon Harvest: Afterdark.

Build also explained what it was doing, including shrinking Collins's open-world city into a smaller building, "presumably to save time and resources." So the first thing an AI game designer learned was to cut scope. Roblox pitches the output as a starting point. From there you keep prompting, or you take the project into Studio.

Collins asked how Build keeps games free of other people's ideas. Kevin Swint, Roblox's senior director of product, said the system "constructively misdirects" users who request one. That is a polite name for a clone filter. Any prompt-to-game tool needs one once people start typing the names of popular games into the box.

The 71% is the number that matters

About 9,000 published games in roughly six weeks makes a good headline. The count says nothing about players, retention or earnings, though, and Roblox has not shared those. The more useful figure is who showed up. Of the thousands of users who made a game with Build, 71% had never used Studio. So far, Build mostly brings in new creators.

Roblox's existing creators get a separate AI push inside Studio. According to the Q2 letter, AI tool adoption among the top 1,000 and top 10,000 creators by Robux spent rose about 15 percentage points quarter over quarter, and use of the agentic Studio Assistant grew 20% sequentially. In a survey of several thousand creators who already use AI, 95% said it shortens the time to ship a game or update. Creators now generate more than 60,000 3D assets a day, and nearly 1,400 games use Cube-generated content daily.

Over the next several months, Roblox also plans to ship professional agents for playtesting, analytics and A/B experiments across Build and Studio. Veterans get agents that do QA. Newcomers get a text box on their phone.

More games make discovery harder

Supply was already spreading out before Build. Roblox's top 10 games took about 20% of hours in Q2, down from 30% in the same quarter three years earlier. The letter spells out what Build does to that: "As AI helps expand the volume of user-generated games on our platform, discovery becomes more important than ever."

Roblox's answer has two parts. Moments, a short-form video feed, is moving onto the app's home screen so a player can watch a clip and start the game with one tap. It launches first for age-checked users over 16 in select markets. The Recommended For You algorithm now scores player behavior over a 28-day window instead of 7 days, adding signals like play-through rate and first-play bounce rate.

Developers at RDC were split. Bee Swarm Simulator lead developer Onett told Pocket Tactics he "trusts Roblox" and expects the tool to help with engineering. He also draws every bee and composes every song himself, and he worries that AI art features aim to "make the designer irrelevant." Fullflower Studio's Anne worried about a wave of low-quality games, while predicting that "people are still going to be craving that human element."

Collins also asked Vlad Loktev, Roblox's chief creator ecosystem officer, about Build's environmental cost. Loktev said that by the time Build leaves testing, the tech should be optimized so it is not too costly to the planet. The Q2 letter already warns of "incremental investments in infrastructure to support AI-related initiatives like Build," so free prompts are not free for Roblox.

The money Build walks into

Roblox needs those new creators. In Q2, revenue grew 36% to $1.5 billion and daily active users rose 10% to 123 million, but bookings grew only 8%, the low end of guidance. The company blamed lower spending per hour among younger players in the US and Canada as they moved from high-spending 2025 viral games to newer and evergreen titles. Its own algorithm changes, which favor games that keep players, added to the hit.

For Q3, Roblox guided bookings down 14% to 18% year over year while revenue still grows 4% to 10%. That split looks strange until you learn that most bookings are recognized as revenue over 27 months. Picture a gym that sold a pile of annual memberships last year. Its books keep counting that money month by month, so reported income looks fine even when the front desk goes quiet. Bookings is the front desk.

After the Q2 results, the stock fell about 27% on July 31, and BMO Capital and Deutsche Bank both downgraded it, Yahoo Finance reported. On Monday, September 14, shares rose more than 11% on the new developer tools, according to Bloomberg. Investors cheered the tools, but the Q3 guidance still stands.

Distribution and payouts

A prompt-made game only matters if people find it and its maker gets paid. RDC covered both.

• Standalone apps. Under what Roblox calls Roblox Everywhere, creators will be able to ship their games as standalone apps on mobile, PC and consoles, still running on Roblox technology. Roblox says "soon" and has not disclosed fees or revenue share.
• Browser and offline play. Players will be able to join games in Chrome by the end of 2026, and offline play is due by mid-2027.
• Roblox Wallet. Run with fintech partner Airwallex, it pays creators in real currency every business day and lets them move money to outside accounts. It rolls out later this year to eligible US-based independent creators 18 and older, with global expansion starting in 2027 and a Roblox Card planned for 2027.
• The pot. Creators earned about $1.7 billion on Roblox in the past 12 months, and more than $5 billion since 2013.

Put the age gates side by side and you get a ladder. You can prompt a game at 9, publish it at 16, and get paid through Wallet at 18.

What builders should take from this

• Count first-time makers. The most telling Build stat is not time saved. It is that 71% of Build creators were new to Studio. If you ship a creation tool, that split tells you whether you grew the pool or just sped up your existing users.
• Generation is the easy part. Roblox wrapped Build in a video discovery feed, a retention-based ranking signal, a clone filter and daily payouts. The text box needed all of it.
• Keep a path to the pro tool. Build and Studio share a backend and chat history, so a phone draft can grow into a real project.
• Budget the compute. A free tier that generates whole games depends on infrastructure spending Roblox is already flagging to investors.

Caveats

Every Build figure here comes from Roblox. The company has not said how many people played the 9,000 games, how long they stayed or whether any made money. The alpha ran in a single small market, and behavior may look different at global scale.

Build is still an alpha and Scene Generator has not shipped. The "roughly six weeks" is our count from the July 28 launch to the September 11 announcement. A one-day stock jump shows how investors felt that Monday. It does not tell you whether Build works.

Key Takeaways

• 9,000 games so far. Roblox says creators published about 9,000 games with Build since its New Zealand alpha opened July 28, and it is expanding to Serbia and Singapore.
• Mostly new creators. 71% of people who made a game with Build had never used Roblox Studio.
• Discovery is the next fight. Roblox says AI-driven volume makes discovery "more important than ever" and is betting on Moments and a 28-day retention signal.
• Bad timing on the books. Roblox guides Q3 bookings down 14% to 18% after a roughly 27% one-day drop on July 31, yet shares rose more than 11% on September 14.
• Distribution and pay. Standalone app exports, Chrome play and a daily-payout Wallet for US creators 18 and older round out the pitch.

Sources: Roblox: RDC 2026, The World Needs More Play, Roblox: Build Without Limits, Roblox Q2 2026 Shareholder Letter, TechCrunch, Pocket Tactics: I just AI-generated an entire Roblox game, Tubefilter, Bloomberg: Roblox Shares Rise 11%, Yahoo Finance: Roblox stock plunges 27%, Roblox Cube on GitHub