What is a video game that you'd love to play, but no one has developed yet?

download godot and some tutorials and you can make a game that levels up your game making stat as you make it

and every game you play levels up your game playing stat

become a streamer and you can level up your money stat

I mean, edutainment exists. It's just rarely good.

Play Turing Complete.

If you can finish it without copying solutions wholesale, you're ready for writing assembly in the real world.