Definitely on theme since you need some deaths to escape.
I kinda cheated the normal difficulty - I died at the end but still managed to finish the level ;)
Got lucky on nightmare though - sprinting on the left side and got it at 1 attempt!
For me the gamepace is quite slow - but it's a sneak game after all.
An indication that the guard is aggroed onto you - or going to would be nice; such as an exlamation point visual.
I especially liked the menus and sounds as well - great job!
Nice job creating a game and submitting!