>Surprised no one has mentioned a VN like Kikokugai yet.
Seriously, it's at least one VN explicitly cited by Nasu to have fight scenes which keep him up at night! It's really very good in most respects, though it'd no doubt help if you are already a fan of wuxia and martial arts movies/stories to begin with. And if not, welp, you're still in for a treat.
Martial arts meets cyberpunk meets heroic bloodshed! I mean, really, what more can I say?
>Another hands-down recommendation is Saya no Uta. Yes, that one VN that reads like a love letter horror story in the vein of H.P. Lovecraft.
And if you A) hadn't heard about this VN before now and B) still can't imagine how such a pairing works out, well, that's kinda par the course. But it's still a good experience!
This VN has the dubious honor of actually making me cry with the True Ending, so yeah. Let the Warp take you~