You made me curious... I didn't play the game yet, though I intended to the first time I came to the forum. But say, isn't it little too slow in DosBox? Because Duke Nukem 3D is really slow there, even with the 12000 cycles.
And that's with the low resolution of 320x200. Just think of 640x480.
I thought of playing Duke3D on good old Windows 98 sometime later because of that. Probably it's where I'll play Blood also.