Just how many door games are there available in MPL or JS as these are probably the only formats that will run under a 64 bit windows system, unless someone has found a way to port some of the classic DOS door
games over to operate under a 64 bit OS.
I have decent luck with my 64 bit linux box using dosemu to run most doors.
It isn't perfect, and it won't do DPMI, but overall it works rather well.
It's probably possible to use Windows 10 64 bit, install linux in WSL, and
use dosemu in there to launch doors...I may experiment with that, actually :)
--- Mystic BBS v1.12 A43 2019/03/02 (Linux/64)
* Origin: monterey bbs (21:1/168)