Very nice, it brings back memories of my very early days of PC gaming. The ones from the list I do remember playing originally on DOS include DOOM II, Duke Nukem 3D and Tyrian. I think I've played a few others on DOS but I can't recall for sure right now.
Also, there's many of them I heard of years ago, but completely forgot about them until seeing this list. That includes Shadow Warrior (never played it, but heard about it, or probably read about it in some old PC gaming magazines), Strife (pretty sure I saw that one at my local store's PC demonstration stand many years ago, but I'm not sure anymore) and Bioforge (I'm sure I played it at my local store, just looking at that single picture on the list rings "you played that" to me, just can't recall anything about it other than I'm sure I've played it).
I'll have to go on YouTube and watch footage of some of them. I'm sure I'll have fun clarifying how old I am.