If you know the answer, kindly educate me in a comment.
But first, try Blue Wyrm.
It’s a free first-person melee dungeon crawler from SaintPesticide.

It’s awash with rich, diseased shades of ruby, amethyst and malachite.
And brother, it has not-dithering to spare.
Here’s a video.

She can swipe left and right or stab forward by pressing the left, right and mouse-wheel buttons respectively.
This is vital, because Gabriel ain’t so hot at defending.
She’s a fast runner and she can double-jump, but she can’t dodge, parry or block.
Calling it “PS1-esque” bleaches away the specificity.
That said, Ireallyneed to see this running on a CRT.
you could download Blue Wyrmhere.
SaintPesticide isalso the creatorof visual novels, top-down shooters and “spirit cutting puzzles”.