Now, choose one of the following Source Ports. Now copy this file to your desktop, just for the time being. First, you will need a master file, called a IWAD.įirst go into your games library, right click 'Doom II: Hell on Earth', and view the local files, the file will be called Doom2.wad, Doom.wad, TNT.wad or Plutonia.wad. There are many mods you can obtain, some good, some bad, and some are simply screamers. Modding is really easy if you actually have source port.