Build a 3D browser game in 24 hours
A developer used Replit's agent to build a 3D browser game entirely in the browser with no local setup.
What they did
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.
How it went
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.
Worth knowing
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.
Labels
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.
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.
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Details
- Agents
- Replit Agent
- Source
- blog
- Source date
- undated
- Accounts
- 4
- In registry since
- Oct 12, 2026