Do I need a retail copy of Doom to Play

I am running Fedora Linux and would like to load jDoom on my machine, but I don't know what all I need?

I don't know what fedora linux is, but if you were using windows, you'd need ONE of the following: Doom2.wad, doom1.wad (that's the shareware I think), doom.wad, plutonia.wad, chex.wad, or tnt.wad. Chex.wad is the only free one.

Anyway, I don't know if jdoom works on linux anyway.

Fedora=Red Hat.

jDooM does require windows, and as far as I know there aren't any linux ports.

Epyo said:

Chex.wad is the only free one.

Of course, doom1.wad is available for free as well. This is the whole point of the shareware release, isn't it?

Eh, I guess I don't count shareware as free because it's shareware, not freeware. Know what I mean? I suppose it does mean the same thing though.

Sure, shareware is not freeware, but since the question was "Do I need a retail copy of Doom to Play", it doesn't matter. In fact, you can "play" the shareware version. It should work with all of the ports.
Asking for editing would be a different case, as you may not make add-ons for doom1.wad.