Even if you vibe code a game engine your best llm will need to do the work of world class technical team of like 12 people, you’ll need to get 10-20 teams to be able to find that dataset. Each run costing a few million usd.

Not sure what that use case is. Why would you need all of that? As an individual, if you are just trying to build a basic game with your kids you don't need to build a whole engine nor a world class technical team or a huge dataset

You can either use chatgpt or something more basic like openjam.ai or something specialized like rosebud.ai

Maybe the people at rosebud.ai have been doing what you are suggesting to build their platform

Not everyone wants the biggest technology companies to own the process.

Nah he's right, people are fed up of hearing about AI all the time, it's off topic here.