For modern one, you need buy doom from steam or gog, extract(copy and paste) doom.wad or doom2.wad, get port like gzdoom, chocolate doom or prboom+ and put everything in folder of your choice(ports and wads) and load port. It should work.
For modern one, you need buy doom from steam or gog, extract(copy and paste) doom.wad or doom2.wad, get port like gzdoom, chocolate doom or prboom+ and put everything in folder of your choice(ports and wads) and load port. It should work.