Doom 64 has surely being one of the most underrated games from the Doom franchise, and its setting, atmosphere, cacophonies and overall foreboding and dreaded tone is one thing that sets this title apart from all the others.
One point of interest from the original Doom 64 was that it recreated...
This mod is awesome. It can convert any fully vanilla assets map pack into Doom 64 too. And there is a project that recreated Doom 64 maps in Doom 2 format. Yes you can stack them!