In terms of a Metroidvania Nine Sols is pretty high up there, easily comparable to Hollow Knight. It has alot of similiar mechanics but still has its own things going for it like the combat where quick reactions to block are basically required.

A couple of things that i also really liked:

-Just the whole Lady Ethereal section in general was sooo good, especially as a psychological horror fan. The whole concept of her fight is straight up amazing.
-How (almost) every boss has a tragic backstory, to the point where you actually feel bad for them.
-Bosses and mini-bosses have a habit of making you their b*tch the first couple of times you fight them, but they still feel fair and beatable. There are like 1 or 2 wonky hitboxes but thats about it.
-F*cking house cats are part of the lore.

In terms of a Metroidvania Nine Sols is pretty high up there, easily comparable to Hollow Knight. It has alot of similiar mechanics but still has its own things going for it like the combat where quick reactions to block are basically required. A couple of things that i also really liked: -Just the whole Lady Ethereal section in general was sooo good, especially as a psychological horror fan. The whole concept of her fight is straight up amazing. -How (almost) every boss has a tragic backstory, to the point where you actually feel bad for them. -Bosses and mini-bosses have a habit of making you their b*tch the first couple of times you fight them, but they still feel fair and beatable. There are like 1 or 2 wonky hitboxes but thats about it. -F*cking house cats are part of the lore.