A developer used Replit's agent to build a 3D browser game entirely in the browser with no local setup.
A developer used Replit's agent to build a 3D browser game entirely in the browser with no local setup.
The developer normally builds 2D HTML5 games with Cocos Creator, Phaser and Construct 3. He used Replit's AI agent, which was free for 24 hours during Replit's 10th anniversary, to attempt a 3D game. Everything ran in the browser with no local setup. The readable part of the article doesn't describe the prompts or the agent's steps.
The readable excerpt stops before any results, so it gives no outcome, numbers or shortfalls. The rest of the article is behind Medium's member-only paywall.
The 24-hour window came from a free-agent promotion for Replit's anniversary, so check what Replit's agent costs now before planning a similar build.
Build me a 3D browser game using Three.js where [describe gameplay, e.g. I fly a spaceship through an asteroid field]. Get a playable core loop with controls, a score and a restart option working first, then improve visuals. You're done when I can play it in the preview from start to game over, with no local setup needed.
Claude Code got an old DirectX game running on modern hardware, decompiled much of it, built a headless parallel runner, and now writes full level guides with screenshots.
A buildathon participant used Replit Agent for the first time to create LingoType, a typing app for mastering new languages.
Used Replit Agent to build a /help page that generates tutorial videos via scenes, Playwright recording, TTS narration and ffmpeg stitching.