Move with the arrow keys. I wanted to try something new, so I decided to make a Raycasting Game. This isn't as good as actual Raycasting made with an actual programming language, but it still looks pretty 3D to me. Feel free to remix this project and change the colors.
I would like to thank @DK-Tutorial for his video on how to make a Raycasting Game. If you want to learn how to do stuff, I highly recommend watching his videos.