build a roblox game

A free kit for parents and kids

Your kid designs it.Claude builds it.You keep it safe.

A step-by-step guide to building a real Roblox game together with Claude Code. Your child makes every creative choice by tapping pictures. Claude draws the options and writes the code. You set things up, ask the questions and do the grown-up jobs.

Read the parent's guide See Clara's game

Open source (MIT). Works with Roblox Studio and Claude Code. Not made by Roblox.

Your magic wand

(pick one, try it!)

This is what your child sees: three choices, a note box, no wrong answers.

A team of three

The one rule above all the others: your child decides. Everything you can see in the finished game traces back to something they said or picked.

Your child

Creative director

  • Dreams up the game, out loud
  • Taps their picks for every part
  • Plays it and says what's next

Never has to type, install anything or read code.

You

Guide and scribe

  • Sets up the tools and accounts
  • Asks the questions, writes the answers
  • Keeps it safe and does the publishing

Never overrules a pick because it's harder to build.

Claude

The builder

  • Draws three options for each choice
  • Writes the code, with tests
  • Playtests in Roblox Studio before saying it's done

Never picks for your child, or swaps a pick for an easier one.

  1. Get ready

    Parent, once

    Roblox Studio, the build tools and Claude Code, and a starter game that already plays.

  2. Dream it

    Kid talks, parent writes

    The game in your child's own words, turned into a spec.

  3. Pick it

    Kid chooses

    Three drawn options per choice, tapped on a tablet. Picks become exact specs.

  4. Build it

    Claude builds, parent supervises

    Contracts first, the server in charge, tests and real playtests.

  5. Play it

    Kid plays, parent captures

    What they say while playing becomes the next round of picks.

  6. Share it

    Parent only

    Publishing, Roblox's 2026 rules, and family and friends playing.

  7. Keep it safe

    Parent, throughout

    Cartoon not gore, no purchases, no unfiltered chat, recordings stay home.

Dream once, then pick, build, play, and pick again.

The picker: how a child steers

The heart of the kit. Claude draws each part of the game three ways, in the game's real style, so what your child picks is what gets built. They tap their favourites on a tablet, and Claude reads the picks back and writes them up as exact specs for the build.

Fifteen sticker-style drawings of garden-tool blasters: three options each for five new guns, labelled A, B and C
Clara H.'s gun board: three looks for each of five new guns. She picked one of each.
  • Three options, never more. Short names and a one-line description a child can read.
  • A note box on every board. The notes carried some of the best ideas.
  • Change your mind any time. The last tap counts, and every tap plays a happy note.
  • Saves as they tap, to a private Claude page or to your own computer over your home Wi-Fi. No accounts needed for the Wi-Fi version.
  • Ambiguous notes get asked about, not guessed. "All of them" could mean two things.
  • Rounds: the look first, then bad guys and places, then features, each one prompted by playtesting.

Gun Flower, by Clara H.

This kit grew out of a real game. Clara H. designed Gun Flower and her dad built it with Claude Code in about a day: pick flowers, turn them into garden-tool blasters, and pop eyeless monsters in top hats back into flowers. Every look in it came from her picks and her notes.

Read the whole story: her spec, her boards and how each pick became part of the game.

A purple gumdrop-shaped monster with no eyes, jagged cream teeth and a tall black top hat
"Scary, not too much, top hats on them."
They have no eyes.

Every monster is eyeless, and a test checks nobody adds eyes by accident.

C, but every gun is the colour of the flower.

A note that became a rule for every weapon in the game.

1A with a hand-drawn vibe.

Her own sketch was polished into the logo instead of replaced.

All of them.

Could mean two things, so the rule became: when unsure, ask the child.

Get started

Setup takes about an hour, and you do it on your own. Then your child sits down to a game that already plays, and starts making it theirs.

You'll need

  • A Mac or Windows computer that runs Roblox Studio (the kit is tested on a Mac)
  • A Roblox account for you (it owns the game) and one for your child
  • A Claude plan that includes Claude Code
  • A tablet for picking, if you have one
# after installing Roblox Studio, Rokit and Claude Code
git clone https://github.com/jhammant/build-a-roblox-game.git
cd build-a-roblox-game
python3 new-game.py ~/Games/our-game

cd ~/Games/our-game
rokit install
claude          # then type /dream

The full walkthrough is in chapter 1 of the guide.

Questions parents ask

Do I need to know how to code?

No. Claude writes the code and explains what it did. You'll type a few commands in a terminal during setup, and it helps to be comfortable doing that. The guide gives you every command.

What does it cost?

The kit is free. Roblox Studio is free. Claude Code needs a Claude plan that includes it (Pro or above). The games it makes have no purchases in them.

Can my child's friends play it?

Your own child can, easily. As of October 2026, a new Roblox game reaches only age-checked players aged 16+ and your Trusted Friends until it passes Roblox's Kids & Select evaluation, so friends take some setting up. The guide explains each option, and the honest trade-offs.

How long does it take?

Gun Flower took about a day. Most families will go slower, in short sessions: 20 minutes of dreaming, 10 to 15 of picking, 15 to 20 of playing, with Claude building in between.

Is it safe?

The kit is built around it: your account owns the game, cartoon not gore, no purchases, chat off, no free text without Roblox's filtering, and family recordings stay at home. A safety check runs before every publish.

Is this made by Roblox or Anthropic?

No. It's an independent open-source project that works with Roblox Studio and Claude Code.