Remix the project and make your own 3D world! Steps: 1. Go to the "Level" sprite and add in squares and circles to make the wall layout for your level. Think of it as the top-down view. 2. You can go to the Raycaster sprite and change the number for "set pen color to _". I put a comment there so you can find it. This will change the wall's color. 3 (Optional). Change backdrop two to change the floor and ceiling/sky color.
I'd love to see you guys' 3d worlds :D