LOOKING FOR AN RPG MAKER GAME...

I've been trying to find this for a while... it was something I played quite a few years ago. I don't recall the engine, if I had to guess it was probably XP or VX Ace. It was a short game, but quite challenging, one or two wrong moves would probably result in you being unable to win future fights. I think it all took place in one big dungeon comprised of like 3 areas, and it had a few bosses. I THINK you only played as one character, too, so probably a single-character RPG.

EDIT: To add some additional details, I believe the dungeon was some kind of ruin or fortress. The very last area of the game was something different, it took place in some kind of other dimension or magical space. It used Kevin Macleod's "Darkest Child" music for the area in question.

It's definitely not that. I updated with some more details.