Ever had a cool game idea but dreaded the hours of setup and boilerplate coding just to see if it's fun? This guide demonstrates a powerful new method for rapidly prototyping 3D browser games using an AI coding agent called Qwen3-Coder.

I created a full video tutorial that walks you through the entire process, from getting free access to the tool to building multiple, playable game demos from single text prompts.

What This Guide Covers:

• The Tool: An introduction to Qwen3-Coder, an "agentic" AI that can generate complete, full-stack applications.
• The Method: A step-by-step tutorial on how to get FREE access and over 50 million free tokens in the Alibaba Cloud Model Studio (no complex local setup required!).
• The Proof: Live, unfiltered demos of the AI building three different games from scratch, then testing them immediately in CodePen.

The Games We Prototyped in Minutes 🎮

Here are the playable demos generated by the AI during the video.

🧟 3D Zombie Dragon FPS

A wave-based first-person shooter. The prompt asked for a complete game loop, including player health, score, and enemy waves. (Insert a GIF of the Zombie Dragon game here)

🏎️ 3D Car Racing Game

A simple but functional racing game with keyboard controls, a race track, and a UI for speed and lap times. (Insert a GIF of the Car Racing game here)

✈️ 3D Plane Fighter Game

An air combat game where you fly a plane and shoot at enemy targets, complete with controls for pitch, roll, and firing. (Insert a GIF of the Plane Fighter game here)

How to Use This Method Yourself:

1. Watch the video tutorial for the full walkthrough.
2. Sign up for the Alibaba Cloud Model Studio (link in the YouTube description).
3. Claim your 50M+ free tokens.
4. Start writing prompts for your own game ideas and see what you can create!

This workflow is perfect for solo indie developers, game jam participants (Ludum Dare, Global Game Jam, etc.), and anyone curious about the future of AI in game development.

I'm excited to see what the itch.io community can create with this. If you try it out, share a link to your creations in the comments below!