JPJani Penttinen
LinkedIn post

My new game: Box Car Racing!

February 9, 2026Jani PenttineninView on LinkedIn ↗

91 prompts, two days, zero code written by hand — Box Car Racing is done. All code and art is AI, but the vision and game design are mine. Easy to pick up, hard to master, and finally scratching my long-running itch to build a racing game.

I didn't participate in Supercell AI Game Hackathon this weekend, but inspired by the concept I spent the weekend prompting with Bitmagic. The result is Box Car Racing! My co-founders Markus & Markus have been making fun of my constant desire to create a racing game, so now I finally did it!

I must say I'm really happy with the result! It's a fun game with quite a lot of challenge, and I was able to tune the gameplay such that it's easy to pick up, but hard to master. While we have editors for tweaking things, I did this one 100% by prompting only. All code and art is AI, but the actual vision and game design is mine.

All in all this took 91 prompts, and about two days from start to finish. We'll release the playable game tomorrow when Bitmagic Creator is updated to a new version! | 30 comments on LinkedIn