i can't play this game because the download link only gives me the windows version and i'm on mac, i have tried downloading from the itch app and the itch website but it's still not working
It's a DOOM mod. You can play it on literally any platform. Just download GZDOOM for Mac and run it with the ipk3 file in the rar that you can download here. If you don't know what a rar is you need to download a secondary program such as 7zip or Winrar in order to extract it as neither Mac nor Windows natively supports the format, but it is extremely common.