When I was young I had a Commodore 64 and there was a really simple 3D maze program that allowed you to "move" through the maze. It just redrew frames for each step and used very low res graphics. I wanted to recreate it so I used Flutter to create my own version.
This was mainly written for Wear OS, but it can work as a mobile app as well.
There is a lot more I could do with it, and I might do with it, as I have time.
Enter if you dare, leave if you can!