I'd really like to recommend "ZGloom" to anyone who wants to play Gloom Deluxe, Gloom 3 or Zombie Massacre. It's basically a port of Gloom using the GZDoom engine, optimised to run on modern PCs
Here you can find out more about it and the links:
https://forum.zdoom.org/viewtopic.php?f=12&t=67283