Earlier quoted context omitted.
Yeah, it is definitely Wolfenstein 3D in my opinion. Many Doom-clones are. Maybe Wolfenstein 3D is a Doom-clone in itself? I dunno, I do not know the history. Can anyone enlighten me?
Wolfenstein came first, Doom followed from the same team. While some doom clones at the time continued to use the Wolfenstein engine it was fairly brief. Rise of the triad is I think the most impressive one using basically the Wolfenstein model?
Catacomb 3D (also by id Software) came first. Wolfenstein 3D was a further development of the same tech that happened to be much more popular, hence why people mostly remember that.
As I recall there were a few games using a similar engine at the time, it's just that they didn't left much of an impression. Some examples would be Blake Stone and Corridor 7.