A very early version of a monster randomizer that I've been working on, utilizing numerous monsters from realm667. The goal for this one is balance as other randomizers like to throw crazy hard enemies at the player. Enemies that are stronger than the ones they are replacing are less common. Also, I only chose enemies that had unique abilities so my randomizer doesn't get too bloated, realm667 has a lot of monsters that play similar to each other. I don't recommend playing this with a doom 1 megawad since Boss enemies are replaced and that could cause issues, I may make a doom 1 version in the future. I recommend playing this with a weapon mod like Final doomer, you could try the vanilla weapons but final doomer is what I've tested this mod with.
Download
https://drive.google.com/file/d/12fTDLCad5Cyv0PkMSFgoUKvwlp6qf0bo/view?usp=sharing