I play nightmare on Xbox and totally don't find it a "problem" !! Only problem is to survive
The great thing with nightmare mode is that it is WORTH to invest in better equipment and weapons ! In Ego Draconis I never had the feeling a much better/greater weapon was necessary to survive. But o, I find nightmare mode & DKS so great !!
Somebody else is playing on nightmare mode?
I don't ask for comments on the ballancing of the DKS, it all goes about the nightmare difficulty

And besides: the DKS IS good ballanced (nothing shall be perfect!), much better than Eco Draconis I find.
Good luck with playing all of you try nightmare mode