Art style change
With the DOS v2.0 release, many of the hand-drawn sprites were replaced with pre-rendered graphics (sprites created from 3D models). This includes most monsters and the player's face on the HUD. Items and level decorations remained unchanged. The updated graphics are also used in the newer Windows releases of the game.
On January 31, 1996, Nitemare-3D (Windows)
was put on the infamous German index by the BPjS. For more information about what this means and to see a list of games sharing the same fate, take a look here: BPjS/BPjM indexed games
Winner of the Ziff-Davis European Shareware award for Best Game.