Cool atmosphere and I love the footsteps sound effects! I like how quick and responsive the character is. I got a bit lost and didn't know what to do to progress.
I have the game running while writing this, and I'm watching the vampire hit me over and over without doing any damage haha. Might have a small hit detection issue if he's attacking at a diagonal Down+Left.
Overall nice engine and i dig the art and sound design, but would have liked a bit more directions or hints how to get out of this castle. I got all the keys and ran around twice but somehow missed the exit