As part of preparing for my talk, here's an example of vibe code, so to speak. I came up with a few small ideas and tossed them not even into Claude Code, but just into a Claude chat to discuss — and it went ahead and built a game demo in 15 minutes. We polished it just a tiny bit, and here I am sharing the result.
It's an RTS/base defense game: gardeners (played by my usual characters) have to defend a greenhouse from slugs attacking in waves. Stock up on cucumbers, buy units, squash slugs while the greenhouse is still standing. Of course, it's only a prototype, Claude made the characters out of emoji, and there isn't much variety either. But — tweak the balance a little, add map generation, buildings, art, sounds, and…
Even so, here's what you can do with an agent in, I repeat, just 15 minutes.
It's all written in JavaScript, Claude demoed it to me right in the chat. A little over 800 lines of code — and that's including all the texts and lines, HTML and styles. Plus the game logic, and even a pathfinding algorithm that leads the slugs to the greenhouse (flow field).
You can play it right here (the game is in Russian):