Real thinking, no typing needed
Build a program from command blocks, then watch the robot follow it step by step.
A coding puzzle game
Plan the moves.Press Run.Reach the flag.
Teach a little cardboard robot to find its way, and pick up real coding ideas – sequences, loops, conditions – without noticing.
▶ Play now – freeNo sign-up. Works on phone, tablet and computer.
Coming soon to the App Store and Google Play
Try it right here
Get the robot to the flag. Tap the commands, then press Run!
72hand-made levels
9worlds
2languages
0loot boxes
Why you'll love it
Blocks or real code
Ready for more? Switch to code mode and write the same program as text.
New ideas in every world
Water, keys, gates, portals, loops and smart steps arrive one at a time, each with a short lesson.
Fair hints
A cheap word hint, or reveal the next step. Every price is shown up-front.
A fresh daily challenge
A new puzzle every day that gets a little harder as your streak grows.
Made to be safe for kids
No loot boxes, no tracking, and purchases sit behind a grown-ups gate.
How it works
- 1
Plan
Look at the board and choose the commands: forward, turn, pick up, repeat.
- 2
Run
Press Run and watch the robot carry out your program.
- 3
Improve
Reached the flag? Try again with fewer commands for three stars.
Nine worlds to explore
- 1Basics
- 2Water & loops
- 3Big challenges
- 4Portals
- 5Gates & buttons
- 6Smart step
- 7Big mazes
- 8The finale
- 9Code world
A look inside
For schools and clubs
Class mode: every pupil signs in with a class code, a nickname and a secret code – no e-mail and no personal details. All levels are open, no lost hearts, and the teacher sees everyone’s progress. Try it free for 14 days.
Questions and answers
What age is it for?
From about 7 and up. The early levels need no reading beyond a few words, and the later worlds challenge adults too.
Is it free?
Yes. All 72 levels are free. Coins are earned by playing; optional packs will be available in the app.
Does it collect personal information?
No. Progress is kept on your device. If you choose to sign in to save progress, we keep only your e-mail address and your game progress.
Which devices does it work on?
Any modern browser on a phone, tablet or computer. iOS and Android apps are on the way.
How do I keep my progress on another device?
Sign in with an e-mail code from Settings, or copy a backup code – no account needed.