Young developer in progress

Sadie Cooper is learning to code games—and you’re invited to play along.

This site is Sadie’s sandbox. Every project is hand-built as she explores HTML, CSS, JavaScript, and game design. Test the latest release, cheer her on, and help shape what comes next.

Free to join • No ads • Feedback-friendly

1 Game in beta “Asteroids Command” is ready for your high score.
2025 Learning journey Sadie is mastering loops, sprites, and space physics.
Tester slots Anyone can join, play, and help with ideas at no cost.

Explore Sadie’s arcade universe

Play

Sadie’s Arcade

Jump into “Asteroids Command,” a modern take on the classic. Expect polish, particle effects, and regular updates as Sadie levels up her skills.

Launch the game →
Build

Sadie’s mission log

Every build note, arcade tweak, and future experiment gets recorded in Sadie’s public mission log. Catch up on what shipped this week and what’s launching next.

Read the mission log →
Community

Community feedback

Share bug reports, feature ideas, and pep talks directly with Sadie. Verified pilots can post rich feedback that the dev crew reviews before each sprint.

Share feedback →

Become a play-tester

Create an account to save your scores, unlock future projects, and help Sadie learn from real players. There’s no payment, ever—just a shared love of making cool stuff.