I'm thinking about giving it a shot after I finish up my playthrough of SoD on I am Death Incarnate!
But I imagine Nightmare is far more difficult than Wolfenstein 3D's hardest difficulty. Who has beaten Doom all the way through on Nightmare and what can I expect? Also, any tips?
I tried nightmare decades ago, but it ended so unfun with the respawning that i never played it again.
And so many years later i learned that by modding you could customise the difficulty levels, so you could actually benefit from a nightmare increased monster projectiles + nightmare specific spawning but without that annoying respawn.