A handful of DOS games:
Get Lost - a 3D maze game. Played the hell out of the shareware version but it was limited to 15 levels out of 100 or something like that. Haven’t been able to get it to work properly with dosbox.
God of Thunder - people are probably more likely to remember this one. A puzzle game with a Zelda-like viewpoint. Had that graphical feel you can only get from mid 90s DOS, kind of like jazz jackrabbit.
Powball - dos breakout clone with little enemies that fly about. Gotta collect the gems so you can buy your upgrades (lasers etc) between levels. Looked very nice too, that later 90s DOS artstyle, similar to Warheads.
Some Windows ones too:
Blast Doors - an evolution of the old Scorched Earth. A little 3D-like battlefield, half a dozen players. I had a lot of fun with that one.
Death Drome - kind of like Tron light cycles but an open arena with freedom of movement (not locked to a grid), weapon pickups, multi-sectioned arenas, countdown timer that eventually releases a killer force field that closes into the centre until one person left. As far as I can tell, this will not work outside of 16 bit Windows.
Hyperblade - 3D futuristic hockey/lacrosse like game with brutality, including killing off the other team, and taking off an opposing players head which you can then score with.