MAP13: Dark Citadel (Doom 64)

MAP13: Dark Citadel is the thirteenth level of Doom 64, designed by Tim Heydelaar. It uses the music track "Voices In The Blood". Not the toughest level, but one that can make you jump more so than others. You will find yourself getting randomly ambushed by demons, hell knights, and barons throughout the level. This stage uses the starry skyline from the earlier 7 stages.

Boxes of shells and bullets are plentiful, so do not hesitate to make use of them. Be prepared though, as there are lots of enemies in various locations.