As you might've noticed, (or not), I have been using Archive.org to find them and upload them, I care deeply about Mods, Wads, Maps, and other goodies for Older games such as Doom, Duke 3D, and Quake, It all started when I found a PC Zone CD from April 1995 back in 2019, It just simply clicked in my mind and I began to search for Shareware, Shovelware, and any other kind of CD's, However even I have not been able to find some of them listed in Wikia's about games like Duke 3D, I am missing the following:
Duke Nukem 3D: Arcade Explosion II, Beyond The Meltdown, Duke 3D Level CD (Germany), Duke Nukem 3D ADD-ON's (France), Knucke Out 3D (Brazil), Level 02 Duke Nukem 3D, Mega Duke 3D (Germany), Mega WAD Vol. 3, More Duke, Nuke's 3D, Power Duke, PowerTools For Duke Nukem 3D, The Resident Alien, The Q Files, Time Of Reckoning, Ultra-Level Add-On.
Doom-And-Doom-II: 1000+ Great Games, 3D Super CD Gaming, BooM Classic Power Pack 2, Doom Explosion, Doom Add-On Levels, PC Gamer Disk 2.5, PC Gamer Disk 2.8, PC Zone CD Edition, Wads Of Wads. I will follow up with this blog if I find more I can't seem to find
I can relate although my hunts have been for very obscure mods from obscure games. Like Chaser or Motocross Madness.