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Harlan Cru Play
Mission control is online

I make games, gadgets and websites.

Welcome to my launch pad. Play the games I made in Scratch, see what I'm building, and learn how to team up with AI yourself in the free AI Academy for Kids.

Play Dog Dash Learn AI with me
ScratchCrubear502 (opens in a new tab)
  • 3games in the Arcade
  • 6makes
  • 13AI missions
Pet the pups: 0 Boone Bucks
Pick your next adventure

What do you want to try?

Orange magnetic-sand habitat with a blue printed baseMake + investigate

Magnetic Sand Pet

Follow the illustrated science project, try the experiments and get the print files.

Explore the science project White printed character on a chain-supported displayLook + watch

From the build table

See the real prints up close and watch three clips from the family printing channel.

See photos + videos Learn + build

Try your first AI lesson

Six short lessons with quizzes and activities. Start at the beginning or pick a topic.

Open the AI Academy
Now playing

Fresh out of the game lab

Dawg gameplay screenshot
Now playingScratch

Dawg

Harlan added Boone, the family dog, to a Geometry Dash Dog Scratch remix.

  • 1 playerjust you
  • Space, arrows or touchcontrols
Play now

See all the games

3D Prints

Fresh off the print bed

I design in Tinkercad and print on real 3D printers. Tap a design to spin it in 3D.

Round Tray with Side Tabs: Version 1#763DHarlan's design10-15-2026

Round Tray with Side Tabs: Version 1

Tinkercad name: Terrific Kup

Round Tray Study#753DHarlan's design10-15-2026

Round Tray Study

Tinkercad name: Terrific Kup

Recessed Square Block#743DHarlan's design10-15-2026

Recessed Square Block

Tinkercad name: Terrific Kup

See all my designs

My workshop

Play it. Make it. Ship it.

Everything here started as an idea. Then I built it, with real tools and a little help from AI.

The Arcade

Games I made in Scratch that you can play right here. No downloads, no account. Just press the green flag.

Enter the Arcade

My workshop

See my projects, look at the real builds and try the Maker Check to tell your own project story.

See my makes

AI Lab

How I tell AI helpers what to build, check their work, and make this website better every week.

Visit the AI Lab
AI Academy for Kids

Learn to work with AI, kid style

Six short lessons for any kid who wants to build with AI the smart, safe way. Quizzes, badges and a certificate at the end. No sign-up.

Badges earned0 of 6
Certificate
  1. 1
    5 minBadge: Curious Cadet

    What is AI, really?

    AI isn't magic and it isn't alive. Find out what it actually does.

    Start lesson
  2. 2
    5 minBadge: Agent Spotter

    Chatbots vs. AI agents

    One talks. One can actually do things. Learn the difference.

    Start lesson
  3. 3
    7 minBadge: Prompt Pilot

    Prompt power: how to ask

    Good questions get good answers. Learn the recipe for a great prompt.

    Start lesson
  4. 4
    6 minBadge: Bug Hunter

    Check the AI's work

    AI can make stuff up. Real builders always check.

    Start lesson
  5. 5
    5 minBadge: Shield Keeper

    Safety shields

    The rules that keep you safe when you use AI.

    Start lesson
  6. 6
    8 minBadge: AI Builder

    Build something with AI

    Put it all together with the build loop Harlan uses.

    Start lesson
Start lesson 1 For parents and teachers
The build loop

How a change goes from my head to the internet

This is the same loop my dad uses with AI on real websites. I'm the boss. The AI is my crew.

  1. AskI tell the AI exactly what I want, with details and examples.
  2. PlanThe AI explains its plan before it touches anything.
  3. BuildIt changes the files in my project folder.
  4. CheckI look at it on a phone and a computer. Mistakes get fixed.
  5. ShipWhen I say "ship it", it goes live and lands in the mission log.
Missions

Next up on my list

Small challenges that teach me how to steer AI. Each one earns XP.

Cadet+50 XP

Change the big headline

Change the big headline on my home page to: I build games, gadgets and worlds.

You learn: Every page is made from a file in site/content. Change the file, push it, and the website changes.

Cadet+50 XP

Pick your own color

Make the main bright color on my site green instead of light blue. Show me before you push it.

You learn: Colors live in one place (the :root part of site.css). Change one line and the whole site follows.

See all missions

Meet the crew

The crew (plus one villain)

Boone, a big fluffy black and tan dog, sitting and looking to the side
Official mascot

Boone

Big, fluffy and the star of my first game. In Boone Clicker, every click on Boone earns Boone Bucks. Five levels later, you're the Boone Champion.

Click Boone now
Peanut, a fluffy orange and white puppy with big ears
Newest crew member

Peanut

Harlan's other dog and the newest member of the crew. Peanut stars in Boone's Bark Squad, with Peanut Power +2!

Play with Peanut
Ezra, a fluffy black and tan dog in a blue hoodie with glowing strings and glowing paws
Magic hoodie

Ezra

Ezra joins the crew in a glowing magic hoodie. His Magic Bark breaks the pickle spell in Boone's Bark Squad.

Professor Picklepants, a cartoon raccoon villain with goggles, a cardboard crown and a pickle-juice tank
The villain

Professor Picklepants

The pickle-powered troublemaker who stole the Galactic Pickle. Beat him in Boone's Bark Squad.

Got an idea for my next game?

Tell me what you'd want to play. A grown-up reads every message first.

Send an idea Read my Captain's Log
Watch + explore

From bricks to moving prints

Watch LEGO builds, 3D printing Shorts, CrunchLabs projects and AI art from the YouTube channel.

Explore videos + Shorts