It's a nice idea, but I agree a lot with most of the other comments that the execution needed a bit more work. I think next time you work on a game with a focus on combat, you should try to make the combat feel good/fun by itself first, then work on the stuff around it. Another small thing would've been adding locks to the "locked doors" so it was more intuitive how to progress.
Metagame cog 44/126 (Kept failing when I played how the game intended me to play, had to cheese all of the fighting as described in an earlier comment)