Star Catcher • A coding adventure for ages 8–12

The stars are going dark. Your child codes them back.

Codestronauts teaches kids to code through story. In Star Catcher, our first mission, your child types real JavaScript to wake a nervous robot named Cody, rebuild a starship and relight the Great Beacon. Five episodes, and a real game they built at the end.

Real typed codeNothing to installNo subscription
The Star Catcher, a small starship, flying through a dark galaxy toward the Great Beacon

Mission 1 • Star Catcher: Relight the Beacon

Five episodes. One game they build themselves.

Each episode is a self-paced coding lesson and the next part of the story. Every line of code your child types moves the adventure forward.

  1. Episode 1 · 15 minWake Up, CodyA call for help, a sleeping robot and an empty hangar
  2. Episode 2 · 25 minThruster TroubleTeach the Star Catcher to fly and count every starbit
  3. Episode 3 · 25 minMeteor StormA Level-Up drive, a flipped question and a visitor on the viewscreen
  4. Episode 4 · 25 minRadio SilenceCody has lost her voice. Only you can bring it back
  5. Episode 5 · 40 minThe Hive RockThe final battle for the Beacon

What they learn: running code, calling functions, variables, keyboard controls, keeping score, if statements, events, reading error messages and debugging, all in JavaScript.

How it works

It plays like a game. It’s real coding.

  • Typed code, not dragged blocks. Press Run and the game changes right beside the code.
  • Hints, not answers. Cody points at the right line when they’re stuck, but lets them find the fix.
  • Help that fades. Early on Cody shows the way. By the end they write code from just a goal.
  • Nothing to install. Plays in the browser on a phone, laptop or desktop.
An episode: Cody pointing at the code, the game running beside it, and the mission guide

For parents

You own the account. They own the code.

You approve every purchase

Kids tap “Ask a grown-up”. The request waits in your PIN-locked Parent Corner. Kids can’t buy anything themselves.

You see their progress

Every episode, step and sign-in, whenever you like. Each child gets their own profile.

A safe place to build

No ads, no chatting with strangers, first names only. Cody only talks about coding.

Pricing

One mission, one price. No subscription.

MissionIncludesPrice
Star Catcher start hereAll five episodes: about two hours of story and code, and the arcade game your child builds$27.99
Constellation PainterMission 2: five more episodes that pick the story up from there$26.99

Pay once and keep it. Nothing renews, and every child in the family can play.

Get Star Catcher · Get Constellation Painter

Jonathan Greene, founder of Codestronauts

About us

“I wrote my first line of code at 8. I built the adventure I wish I’d had.”

Codestronauts is an educational technology company that teaches kids to code through interactive stories. It was founded by Jonathan Greene, a software engineer with 17+ years shipping software, from startups to heart-health devices doctors rely on, and an inventor on more than 50 U.S. patents. He designs every episode.

Questions go to a real person at hello@codestronauts.com, usually answered the same day.

Already a Codestronaut?

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FAQ

Questions parents ask

Does my child need any coding experience?

None. Episode 1 starts with pressing Run, and Cody explains every new word right after your child sees it work.

Is there a live teacher?

No. Episodes are self-paced. Cody guides every step, and each episode is designed so kids can finish without an adult.

What do we need?

A phone, laptop or desktop with a web browser. Everything runs in the browser.

What happens after Star Catcher?

Star Catcher is a complete story with a finished game at the end. Mission 2, Constellation Painter, picks the story up from there with five more episodes, and more missions are on the way. You decide whether your child gets them.

Cody’s waiting for a captain.

Every Codestronaut starts with Star Catcher: five episodes, and a real game they built at the end.

Get Star Catcher · $27.99