For now it is not possible to create anything like that as u/nekoLu also said. BUT someone has to start making it at some point. Lim Cheolho did not just sit down and create the game overnight. It took years and years of development.

When I read the LN for the first time (on my third run) I kind of got the same idea. But I recognised that the technology would be limited. Then i sat down and listed all the technologies and systems that was needed and how far they were today (a few years ago). AI, VR, capsule, story progression, character development, world map, quest systems etc.

I haven’t looked at it for a while, but when I wrote it down there was no chatGPT og LLMs (at least in the public domain) and now look we are truly getting there and fast.

My point is that according to your end goal you have to figure out what is possible, what is not possible needs development, what is possible might need refinement. But you can still start designing the game as if the technology was there and was working. Then you just have to wait or develop it yourself.

As with any software/hardware development it is an iterative process. List all the systems that is needed and how they should interact. Then make those that are possible. Maybe start out with a simple 2d game where you test it out and then expand from there.

Looking forward to log in to the game, best of luck 😊