Some of my favorite darker themed stories. The Immortal Game is among the best stories I've read on this site at all - brilliant characterization, action, intrigue and several visceral, wrenching scenes that stab your feels right in the face. Hard Reset features Twilight with a bit of extra dark humor to her, and has a Groundhog Day scenario starting just before the changeling invasion - it's quite a read. Feed Them is a rather sad story, for all its horror, and I'll leave it at its own description. Forever Faithful is one of the first fics I read on this site, and is still a great little "chills down your spine" story. The final story I will let stand on its own merits - it speaks for itself well.

I'm on a TwiLestia binge, but I'll just put one here, there's a group for that. Fair warning, Composure is insane. Like, holy martian shitballs it's good. Nor has it been updated in quite some time, so if you don't like potential infinite cliffhangers, don't fall into that one. (but man were those seven chapters good holy crap) I Waited For You is also TwiLestia, super short and super heartstring-plucking. Walking Through Fire is (you guessed it) TwiLestia, with a neat twist as to how the relationship can even begin. Twilight's perseverance is tested. The Power of Suggestion is a TwiDash one, an interesting little take on Dash's ability to learn as she flies. Fifth is pretty widely known. Xenophilia kinda blew up a little while back as a very well-written, and well-thought out human in Equestria story. Not only the romance stuff, but the world building is what helped sell it for me.

I won't scar the first one, masterpiece that it is, with my words. Go read it. ACT OF WILL is pretty dark. Kinda introspective too, and I had plenty of dark stuff to throw into that section. Archmage is about Twilight having to replace the former Archmage, and undergoing the training and whatnot it entails. Pre-Larsoning. The fourth one is just silliness. Go read it for a laugh. Lost Cities is absolutely amazing worldbuilding, painting a scene, telling a story, and a history all without dialogue. It's great.