Betrayal at Krondor often passes as the first 3D RPG, but actually, it isn't, by a long run; there were a few on the Amiga before it.
For all I know, Drakkhen really was the first. It does not sport a first-person view, as has sometimes been claimed, that would come with next year's Let Sleeping Gods Lie, but it already has some of the features of the later Elder Scrolls series: a huge gameworld, and fairly realistic passage of time with day and night.
The DOS port suffers the usual ailments: EGA can't reproduce Amiga graphics, even though Drakkhen, co-released on the Atari ST, sported only 16 colors, and there is no mouse support. A rare VGA version cured the first, but not the latter, and without a mouse, the interface becomes rather cumbersome.
