I recall it was either near the middle or the top of the staircase. It was a pretty long staircase. I wish I screenshotted but forgot I could post those to Itch.
120 days ago(+2)
Okay I see what you're saying, I just tried it out. Seems like you're able to walk on top of the skeletons and zombies for some reason, and it causes you to get stuck.
Just updated the game. I added autosaving when going between locations and this room should be fixed now as well. Thank you so much for letting me know about it!