About CodeRealm Play

How it works

CodeRealm teaches the ideas behind coding by having you write programs, not just read about them. You snap blocks together, run them, and see exactly what your instructions do.

• Command Builder — drag together move, turn, repeat, and if-wall-ahead blocks to guide Bit to the ★. Reach it in the fewest blocks for a gold star. Tap Show Swift to see your blocks as real Swift code.
• Debug It — a program that almost works. Run it, watch where Bit goes wrong, and swap the one broken block for the right one.
• Concept kits — 16 short question rounds, from algorithms and loops up to recursion and software design.

Real code, on purpose

The blocks aren't just pictures — each one is a real programming instruction. When you press “Show Swift,” you see the exact Swift your program would be. That’s the same bridge from blocks to text code that the iOS app is built around.

Our privacy promise

CodeRealm Play is free, works offline, and collects nothing. No accounts, no ads, no tracking, and no data ever leaves your device — your progress, level, and streak are saved only in this browser.

Mistakes are part of it

A program that doesn’t work yet isn’t a failure — it’s a bug to find, which is exactly what real programmers do all day. You never lose anything for a wrong run; a hint appears once you get stuck to help you think it through.