A character walks around a big ornate classic library, pulling books from bookshelves looking for a special book that causes a shelf to rotate around and reveal a hidden room and treasure chest. The player can read the books and some are just filler but some have clues about the special book. If this can be done with art, animations, sound, UI, the usual stuff, I'll believe the parent poster's claim to be true.
As someone using LLM-based workflows daily to assist with personal and professional projects, I'll wager $250 that this is not possible.
I think the problem here is different expectations for what a “game” is.
If you tell a room full of programmers that something can make a game they’re going to expect more than that.
I look at that and I don’t really see a game, I see flashcards.
Still pretty cool chatgpt can put that together.
Also the “try again” button doesn’t work.
But trying to be fair here, anyone would call this incomplete, right?
There are several obvious bugs in styling and interaction.
This example is exactly what I was expecting. An ephemeral, simple-yet-buggy single page that’s barely a game in common understanding.
That person, while maybe not actively programming things, does appear to have forked several repos on GitHub a decade ago. I would say that’s above the level of technical competence implied by the “my grandma” phrasing of the OP.