Pt1:
http://dosgamer.com/3d/
- http://dosgamer.com/doom-iii-mr-smiley-heads-safari/ (Standalone doom 1 mod; crazyness!)
- http://dosgamer.com/alpha-waves/ (For 1990, pretty early 3D polygon shooter by Infogrames)
- Few other stuff
Have other categories like:
- http://dosgamer.com/non_english/
- http://dosgamer.com/edu/
- (plenty others)
Worth checking out if you're looking for some obscure ancient fossils. And don't mind full rips.
Hopefully can find some more obscure iso images. Hmm.
(to be continued - indefinitely)