The Witcher 3 is not scary.
Although the monsters are all ghosts, they are not as atmospheric as Bloodborne.
The battle also has BGM. The BGM is quite cheerful? (My own feelings)
Under the cheerful BGM, and it is not as atmospheric as Bloodborne, no matter how ugly the ghost is, what is so scary about it?
But in fact, Bloodborne is not a horror game, it just has too much atmosphere. The impact is also great.
Compared with this, The Witcher 3's combat is not as remarkable as Bloodborne. It can only be said to be a mediocre RPG. The plot of The Witcher 3 is a bit slow, and it's basically all side plots. The plot is not as dark and dark as Bloodborne.
If anything, The Witcher 3 is a fantasy style. Not scary at all.