NCF – Extended list of Neutral creatures.

I was struggling with it all the time, constantly experiencing crashes.

I haven't had a single crash with this mod. Everything works fine, except that most of the monsters in it seem to be super strong, but with the right tactics, they can be defeated like ordinary ones. The mod is generally cool; it just needs to be properly balanced. Otherwise, it's a good mod, and I personally like it; I recommend downloading it.