fgsdfgs has ported Doom 64 over to the Nintendo Switch:
I ported Doom 64 EX to the Switch.
Doom 64 EX is a reverse-engineering project aimed to recreate Doom64 as close as possible with additional modding features.
Features:
hardware accelerated rendering;
sound and music;
analog controls;
all other features of Doom 64 EX probably work (except network games).
To install and run the game, follow these steps:
Obtain a Doom 64 ROM in either n64, z64 or v64 format. I think region and version do not matter, as long as the ROM is unmodified.
Extract the wadgen folder from doom64ex_nx_v010.zip to somewhere on your PC.
Run wadgen/WadGen.exe and point it to your Doom 64 ROM. This should generate two files inside the wadgen folder: DOOM64.WAD and DOOMSND.SF2.
Extract the switch folder from doom64ex_nx_v010.zip to the root of your SD card.
Copy DOOM64.WAD and DOOMSND.SF2 you got in step 3 to /switch/doom64ex/ on your SD card.
If you already have Doom 64 EX installed on your PC or something, you can just do steps 4 and 5 right away, using the files from your existing installation.