Legend of Doom

1: Download the latest GZDoom

2: Drop both the wad for Doom 2 (Doom2.wad) and LegendOfDoom-1.1.0.pk3 in your GZDoom folder

2a: If you do not own Doom or Doom 2, you can use the freedoom2.wad file downloadable for free via the Freedoom project.

3: Right-click GZDoom.exe  -> Create Shortcut

4: Right-click the newly created shortcut and choose "properties" this time.

5: In the next window, to the right of "target:", you will see some stuff written between quotation marks. Go to the end of that line, add a space then add this : -iwad doom2.wad -file LegendOfDoom-1.1.0.pk3

It should look like this : "C:\games\GZDoom\GZDoom.exe" -iwad doom2.wad -file LegendOfDoom-1.1.0.pk3

Click on OK when you're done and whenever you want to start this mod, just execute the shortcut you just created. It will automatically load the game and the mod without requiring any input on your end.