I recently watched a video on the youtube channel "decino" that compares enemies of Doom64 and Doom/Doom II. One of the reasons this game feels more claustrophobic is because the enemy sprites are bigger in size, while the size of the levels is identical to Doom.
Massively underrated/overlooked game. It was a blast and the whole "switch opening things in other rooms" complaint I hear often was not nearly as bad as I expected, I knew what each switch did, and if not you just need to go back a little until you see something new or listen for the sound. I also love mazes so that might be a contributing factor (just hug left until you can't anymore then go back and hug right, ez.) I agree with 1>64>2. Way exceeded expectations
nice