Part 2: GPT-6 Astra Built This Post-Apocalyptic Game Scene in Half a Day — Further Improvements!
Hey everyone! My previous post unexpectedly got a lot of views and comments, so I decided to make a follow-up and share a few more details.
https://reddit.com/link/1waltbn/video/unsrbp777aoh1/player
Yes, that first game scene really was built in Codex using Astra + Blender MCP + Godot, just as I described, in about 10–12 hours. I started with a fairly large and detailed initial spec, then gave it a few additional hints and directions along the way.
I also use my own approach for starting AI projects — an automated project bootstrapper. It asks me about the task, target audience, goals, stack, and other project-specific details, then prepares the project environment in advance: files, documentation, folder structure, stack-specific setup, relevant skills, and so on.
But I’m not a game developer. I explore what AI can do in areas outside my main field of work (although yes, I do work in IT). So some aspects of game development are new to me or things I haven’t explored deeply yet — optimization nuances, model preparation, common conventions for behavior and mechanics, and so on.
The main thing I wanted to demonstrate is that with proper preparation and today’s models, it’s already possible to achieve some genuinely interesting results.
Yes, it burns through usage limits. Yes, a human can do certain things better. But even so, the latest updates feel like a significant step forward in what’s possible.
In this video, I show how the scene can be improved quite significantly in just a few more hours, again using essentially one main instruction, references, and a few additional directions during the process with Astra.
The stack is exactly the same: Codex + Blender MCP + Godot.
During this iteration, Astra worked on optimization and color grading, added some new objects, improved the details and overall composition, implemented object highlighting, and made a number of other improvements.
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Posted Sep 8, 2026, 11:31 AM UTC