I have made a mini labyrinth inside my game, but it has no graphics. And now that I read this, you made me remember that I was going to be creating a map for the game too, I’d just didn’t put my hands on it yet.
Here is a post of someone that for sure knows how to bring your idea to life. I’ll have to sit down and start trying to see if I can get something like that to work, but I’m not that skilled with programming, yet.
Also, here’s the 3d version of it (I helped with the graphics on that one) Maybe you can learn from the code, that’s where the real magic is.