Warning this post won’t be super helpful
I played a demo for a game a couple of years ago that was SMT dungeon crawling. I think it was made by one person and I cannot remember their name or the name of the game. Maybe someone else will know it?
The developer is mainly known for glitch art with an anime influence. The game was a first person dungeon crawler. The characters look like they were sprites rendered from 3d. It was very purple, pink, white and black. It was definitely demonic themed and almost definitely had skills related to mystic hacking.
I wish I could remember what it was called because I remember really liking it. It was early but played well and looked great.
Anyway, not helpful but if I can remember what it was called, I think it fits the brief PERFECTLY
EDIT: thank you to @sdate, the game I’m referring to is Labyrinth.os and can be found here: https://dataerase.itch.io/daedalus000000exe