One of the aspects of MSX-DOS I find fascinating, is its CP/M compatibility.  In all the reading and conspiracy theories that MS-DOS stole from CP/M - I never heard anyone discuss MSX-DOS.  Here is an Operating System that bridges CP/M and MS-DOS.  It runs many of your favourite CP/M programs just fine, saving and reading from the MS-DOS compatible disk format FAT.

I haven't done a lot of testing of various apps, but I did try ZORK.

For the first time, using MSX-DOS, with the V9958 and MSX Keyboard, I was able to play ZORK on my RC2014 without the need of a modern PC.