Why Kids Should Code Together
Solo coding is how you learn syntax. Collaborative coding is how you learn to think. Here's why we built multiplayer into CryptoBlocks.
Most coding tools for kids are single-player. You sit alone, drag blocks, run your program, see if it works. There’s nothing wrong with that. It’s how most of us learned.
But it’s not how most of us work.
Programming is a team sport
Every real software project is built by multiple people. They read each other’s code. They debate approaches. They divide the problem into pieces and work on different parts simultaneously. The skill isn’t just writing code — it’s communicating about code with another person.
Kids don’t learn that skill by working alone.
What happens when two kids share a workspace
We’ve been testing Coding with Friends internally, and the conversations are fascinating:
- “I’ll build the input part, you build the output.”
- “Wait, why did you use a loop there? Oh, that’s smarter.”
- “Don’t delete that — I’m using it.”
- “Let me show you something — watch this block.”
These are the same conversations professional developers have every day. Pull requests. Code reviews. Pair programming. Kids are doing it naturally, without anyone teaching them the vocabulary.
Pair programming for beginners
There’s a well-known technique in professional software development called pair programming — two developers, one screen, taking turns. One drives (writes code), one navigates (reviews and directs). It produces fewer bugs and spreads knowledge across the team.
Coding with Friends is pair programming with training wheels. The visual nature of blocks makes it easy to see what your partner is doing. The colored outlines show which block they’re touching. You don’t need to explain “line 47” — you can just point at the block.
It’s also just more fun
Let’s be honest. Building a calculator alone is homework. Building a calculator with your friend is a project. The social element turns coding from a chore into an activity. And activities stick.
We’ve seen kids who gave up on solo challenges come alive when they have a partner. Not because the problem got easier — because they had someone to figure it out with.
How we built it to be safe
- No chat. Communication happens outside CryptoBlocks (in person, on a call, wherever). We’re not building a social network.
- Room codes, not usernames. You share a code with someone you already know. Strangers can’t find your room.
- Max 6 people. Small groups only. This isn’t a streaming platform.
- No persistent identity. Your temporary username is
Coderplus a random number. No profiles. No friend lists. Just code.
Try it
Click Friends in the toolbar. Create a room. Send the code to someone sitting next to you. Build something together.
That’s the whole idea.