Bastard (hwang Youngchan)
One of the best dark thriller webtoons out there. It keeps you on the edge of your seat. Everyone is twisted, but you want to root for the protagonist. It's worth re-reading after the first read-through!
Hogu Hagyeongsu
Very good dark BL, comparable to Killing Stalking. Art is really good, and the plot is overall well-paced. It has lots of mature themes, so may not be right for everyone. This webtoon is the closest to Killing Stalking in terms of dark BL genre, although Killing Stalking is still superior.
Obey Me
It's quite dark, a BL in the same vein as Killing Stalking. Personally, it's not as dark as I would have liked though. I think the plot is a little weird in pacing and there are some gaps in the story, but it was overall a good read. I'm not surprised at all at the ending.
Unfather
The art is so-so, the protagonist is well drawn and beautiful, but everyone else is average or ugly. The plot is dark, but not as dark as I would have liked. None of the characters are likeable and they're all twisted, which I liked about this webtoon. It's hard to sympathize with any of these characters, and it wasn't surprising that they all ended up unhappy and trapped in their futures.
Killing Stalking
Classic dark BL, it's very well written and the art is gorgeous. It deals with a lot of mature themes, so may not be appropriate for people who don't like this kind of material. Ending was tragic, but made sense as none of these characters deserved a happy ending.
The Devil King's Sonata
Mediocre webtoon. The author tries to make a strong female protagonist, but fails miserably since she still relies too much on the Lucifer/Baal male love interest, and always needs his help. As a strong female character, you need to be independent and stand up for yourself. That concept quickly got thrown out the window. And I don't know why it's heading towards smut territory, that came out of nowhere. None of the characters are likeable and I don't care what happens to them.
Private Scandal
Ehhhhh... One of the more decent BLs that I have read so far, but not by very much. It gets an extra star for actually trying to develop some semblance of plot instead of random smut every chapter. However, it's very slowly paced, and I'm getting bored of it, since nothing really happens. You don't really learn something new about the characters as each chapter progresses, so it's wasteful to me. I think more time could be spent developing the main cast, so you'd understand their motivations, but still, at least they tried a little bit. The male lead is an unapologetic tsundere and drives me nuts, he's extremely unlikeable and rude to everyone, including his love interest. There's no explanation as to why he does this, or his internal thoughts or conflicts, so you cannot sympathize with him, even when other characters are treating him poorly. Basically, he's getting what he deserves. Since he treats everyone like trash, he gets treated like trash in return. I don't see what the other male lead (love interest) even sees in him. The art is so inconsistent. It is very good sometimes, and then awful all the other times, super jarring to read. It should be of consistent quality throughout to make it easier on the eyes. I don't find any of the characters to be handsome/beautiful, they're all just average.
Evil Museum
Eh. It had a great premise, but didn't deliver on it. I'm a huge fan of episodic shopkeeper stories, but this isn't one that I like. I think it's important to have the medium of the story stand out, such as the setting and the characters (or in this case, shopkeepers). Think xxxHolic and Petshop of Horrors, the owner of the stores is enigmatic and full of secrets, luring unsuspecting customers to their potential dooms. Here, we learn nothing about the owner or the part-time worker, or even the items in the museum. The author chose to tell the stories in a weird "let's exchange random stories to each other" format, which isn't bad in itself, but it's done so poorly. The chapters are disjointed and sometimes you can't tell if you're in the middle of the story or if you're in the museum before they start another story. Some of the stories were creepy, but they all feel so flat. The art was great in the prologue, but severely declined in quality with each chapter.
Brawling Go