Start Screen Just sharing what came out of a weekend. My son (10) and his cousin (10) love games and asked me if they can “make a game”, since they’ve seen me in the past couple of months, vibecoding different little helpers. I of course explained that it’s not a one-shot solution and that they first should sit down, plan the game out and write down what they like the game to be, to look like, to feel, etc. So they did: the assets, the obstacles, the design style, what world it plays in, how it should look. A 3-lane endless runner in a neon city. Dodge robots, jump lasers, grab coins. Subway Surfers with their own spin. I handled the prompting in Claude Code. The design calls came from them. They tested, found bugs, kept asking for stuff and fleshed out the world more and more. Billboards along the road. Flying cars between the buildings. A slow-mo death sequence and much more. What got me wasn’t the code part, it was watching them stay locked in for hours on something they had actually invented. Though my son thought at first that they could easily sit down with me for 6 hours straight without getting bored, after three hours he admitted that it can sometimes be a bore. So, since the game already was playable, I gave them one desktop computer to test on and one mobile phone, and then they switched into active beta testers. Giving me input constantly on how what feels and should work. Play it if you want: https://megarun.app/ … and don’t forget to put your name into the leaderboard! Works on desktop and mobile. Stack/Workflow: Three.js (single HTML file, no build step, importmap via CDN) Vanilla JS, ~4000 lines Vercel serverless functions for the API (leaderboard + play counter) Upstash Redis as storage (sorted set for leaderboard) Rate limiting + CORS + profanity filter in the backend Higgsfield for logo, warning splash, billboard ads Suno for background music 3D assets generated procedurally in Three.js (boxes, cylinders, a few spheres) Initial design work submitted by /u/jacksonjjacks
Originally posted by u/jacksonjjacks on r/ClaudeCode