The Google Gemini and Unity logos. Image: Google Gemini and Unity logos via Simple Icons (CC0)

Google has launched Playground, a free browser-based platform where you describe a game in plain English and Gemini builds it for you to play, tweak and share, no coding required.

It went live on Wednesday at playground.google for users in the US aged 18 and over. Google calls it “an experimental gaming platform” and pitches it at people who have never touched a game engine.

How Playground works

You start from a blank canvas, remix one of Google’s starter prompts or follow guided help, then test the game straight away. From there you keep typing to change it. “Want to tweak the physics, rewrite the rules, customize the characters, or overhaul the environment? Just ask,” Google says.

Finished games can stay private, be shared with a link, or be published to a public gallery called Playground Explore, which ranks games using player ratings and play activity. Some genres support leaderboards and multiplayer, and a Play Games profile lets you claim a handle, follow creators and compete for top spots. Google says every published game goes through safety screening against its community guidelines, plus user reporting.

Because it runs in the browser, games work on phones as well as laptops.

Google Labs showed it off in a launch video:

What it runs on, and what it costs

Playground is free, but making games uses up a weekly allowance. Google spokesperson Nia Carter told The Verge that Google One subscribers get higher weekly token limits depending on their plan, and that the service is powered by “Google’s existing foundation models (Gemini, Nano Banana, and Lyria) paired with a custom harness refined through our own internally built games and evaluations.” Nano Banana is Google’s image model and Lyria its music model, so the art and soundtrack are generated too.

That allowance matters more than usual this week: Google is also cutting free Gemini users down to its smallest model on October 9, a sign of how carefully it is rationing compute for people who don’t pay.

Unity Spark is coming for serious builders

Alongside Playground, Google and Unity revealed Unity Spark, an AI game-making tool closer to a professional engine, with high-fidelity 3D, Unity’s runtime and the ability for several people to build a game together. Games made in Spark will be playable on Playground. Spark is in testing, with a closed beta due later this year and a waitlist open now at unity.com/spark.

The idea is a ladder: start with a text prompt in Playground and graduate to Unity when you want more control.

Everyone wants to be the YouTube of AI games

Google is not alone. Meta recently said it will let people build games with AI on phones and the web for its Horizon platform, with published games able to show up on Facebook and Instagram, and Roblox is testing AI game creation on phones through a feature called Build in a few countries. Google’s own DeepMind alumni are chasing the same idea: people who built the Genie world model now run Emulate, a start-up heading for a $3.7 billion valuation before it even has a product.

Why it matters

Text-to-game turns Gemini from a chatbot into something people play with, and a public gallery gives Google a reason for them to come back every day. If it catches on, the fight between Google, Meta and Roblox over who hosts AI-made games could matter as much as the fight over chatbots.

Sources: Google: Introducing Playground; The Verge.

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