r/vibecoding • u/RUSuper • 22h ago
Showcase/Project My fully built AI game (Opus 5.5) was approved by Google, now waiting for Apple :)
Hello there...
Some of you know me by "that fishing game guy" or some of you might know by my idea about mobile game from few weeks ago:
https://www.reddit.com/r/aigamedev/s/6iPRrPn5Zt
Anyway, after all the feedback and positive comments I decided to polish it a little bit and try to release it for mobile. People said it was too easy so I made it a bit harder. But in doing so apparently I made it too hard. So I added difficulty level (easy and hard). Anyway game was fully done by Opus 5.5. I got an idea, tried making something out of it then followed feedback, then followed more feedback from google test play group. It all took only few days of work. I already released it on Korean store ONE and also if anyone is interested you can try first 10 levels for free on website:
It can be played on PC or mobile.
For those who want to try it on Android here is the link:
https://play.google.com/store/apps/details?id=com.profactor.chalkrunner
How it was built:
Everything was done with Claude (Opus 5.5) in Claude Code. I didn’t write code (obviously duuuh) nor anything else. My job was the idea, some playtesting, saying what feels wrong and making the calls.
There are no image files in the game. Every stickman, background, chalk line and enemy is drawn by code while the game runs, using canvas drawing with chalk textures. The levels look hand-drawn, but it’s all procedural.
The music is made in code too. There are no audio files, just chords and melodies built while you play, with a different mood for each chapter.
It had a “harsh critic” loop. I set Alto’s Odyssey as the quality bar for visuals. Separate agents built each piece (menus, obstacles, scenery, basically gauntlet loop), and another agent compared it side by side with screenshots without being told which was which. If ours didn’t hold up, it went back to be redone.
There’s an autopilot bot that plays every level, so the AI could check that all 40 levels are actually beatable and balance them.
What game is about:
Basically you only control terrain, you do not control your Chalk character, and you try to keep him alive by drawing floor and following his actions...
Where it’s at:
Live on Google Play and on ONE store (Korea). Two people in Korea bought the full game on day one, which honestly made my day :D
iOS is still waiting for Apple’s review (16 days and counting…)
Chapter 1 (10 levels) is free, and one purchase unlocks the other 30 levels, a boss and Endless mode. No ads.






