I'm working on this project since 13 September 2019 and now I can show something :) At the moment, there are bugs with sector lights, spider animation, weapon aiming...maybe something else. I have written all of the game code except sound code, enemy code, palette code. My port also doesn't have a menu and change level code, so I still have to make a lot :)

You can see it here: https://youtu.be/2tIHNVY1EGM