I'd use one of the existing game toolkits that you can build a 3d game on top of, not try to build anything from scratch. If you want to go vintage this was a

I'd use one of the existing game toolkits that you can build a 3d game on top of, not try to build anything from scratch. If you want to go vintage this was a DOS app for creating DOOM style 3D games. https://archive.org/details/lukecool_gmail_GCS https://archive.org/details/lukecool_gmail_GCS