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Platform Cards

Three of the largest game platforms now turn a typed sentence into a playable game. If your child is asking about one, here is what each says about itself: who can make games, who can see them, who can message, what is sold, and what the terms say.

As read on 7 October 2026. These platforms change often. Every line links to where it came from, and where the sources we read say nothing, the card says so.

Playground

Google (Google Labs)

Who can make
  • Anyone in the US aged 18 or over with a Google Account. Children cannot create games here. playground.google
  • You type a prompt, test the game at once, then ask for changes to its rules, physics, characters or setting. blog.google
  • How much you can create depends on your Google One tier; there is a weekly allowance with a small free tier. techcrunch.com
Who can see
  • A game can stay private, be shared by link, or be published to a public gallery. blog.google
  • Public games can also appear on other Google products. playground.google
  • The gallery promotes games using player ratings and play activity. Published games are safety-screened and can be reported. blog.google
Who can message or play
  • A Play Games profile adds a handle, likes and follows. Some kinds of game get leaderboards and multiplayer. blog.google
  • The terms forbid building open text boxes or chat features meant to enable bullying. playground.google
What is sold
  • More creating comes with paid Google One tiers. blog.google
  • No payment to game makers was announced in the sources we read. blog.google
What the terms say
  • Google does not claim ownership of your games. playground.google
  • You give Playground the right to make money from your games, including ads in or on them. Google says it will ask your permission first. playground.google
  • No characters or other material you do not have the rights to; no removing AI watermarks. playground.google
What changed lately
  • Opened on 7 October 2026 as an experiment, in the US, for adults. blog.google

One question to ask: If you could make a game just by describing it, what would you leave for the players to decide?

One thing to do together: Invent a game with three things from a kitchen drawer. Write its rules on a card, play it twice, then change one rule.

Unity Spark

Unity, with Google

Who can make
  • A game maker that starts from a prompt and adds a full web editor. A closed beta with a waiting list is on the way. unity.com
  • Who will be allowed to use it, and at what age, is not stated in the sources we read. investors.unity.com
Who can see
Who can message or play
  • Signing in with a Play Games profile brings leaderboards, matchmaking and community features. investors.unity.com
What is sold
  • Price, date and countries were not announced. unity.com
  • Games start from artist-made assets in the Unity Asset Store. gaming.net
What the terms say
  • No terms were published for it in the sources we read. unity.com
What changed lately

One question to ask: When a tool makes most of a game for you, whose game is it?

One thing to do together: Play any board game you own, and each pick one rule you would keep and one you would change.

Roblox Build

Roblox

Who can make
  • A text prompt makes a basic game inside the Roblox mobile app. techcrunch.com
  • The public test began on 28 July 2026 in New Zealand, for age-checked users aged 9 and up. techcrunch.com
Who can see
Who can message or play
  • Roblox now uses age-based accounts and age checks. By the end of June 2026 more than half of daily users had been age-checked. respawn.outlookindia.com
What is sold
What the terms say
  • Read the Roblox terms on its own site before your child publishes; the sources we read do not summarise them. techcrunch.com
What changed lately
  • Roblox has said its age checks and wider content monitoring are costing it bookings. uk.marketscreener.com
  • Los Angeles County sued Roblox over child safety in February 2026; a judge let the case go ahead in September. counsel.lacounty.gov

One question to ask: Who will be able to play what you make, and how would you know who they are?

One thing to do together: Before anything is published, play the game together and agree who it is for.

Horizon Create and Horizon Studio

Meta

Who can make
  • A phone app for describing a game, and a browser editor for refining it. There is a waiting list. invenglobal.com
  • Age limits for making games are not stated in the sources we read. invenglobal.com
Who can see
  • Published games can appear inside Facebook, Instagram and Horizon: tap a clip and join a session. pocketgamer.biz
  • Each game gets an automated age rating. pocketgamer.biz
Who can message or play
What is sold
What the terms say
What changed lately

One question to ask: Where would someone first see your game, and what would make them stop scrolling to play it?

One thing to do together: Make a game on paper first. Only then decide whether it needs a screen at all.

Why we wrote these: on Spark & Anvil, children make games by choosing rules, not by typing a wish, and a machine only ever plays the game back and reports what happened. The thinking behind that is in Thinking with Machines. Nothing here is legal advice.