Didn't expect to see a horror game within this jam!
You definitely have the building suspense down for a horror game, with opening many doors and going through many rooms. The player expects to be scared, but as they continue to go through more and more without it happening, they relax and move faster. Basically what makes games like Spooky House of Jumpscares work.
The music is very well made, but I think it lacks because it is on repeat. It does a very good job at building suspense, but I think for horror games it is vital that the music building is in sync with the gameplay, so it builds suspense in the right moments.
The visuals are great, kept a good style for the environment. Although the paint on the walls was very hard to read, I could honestly see being a part of the game. Maybe you have some text that is hard to read from a distance, so the player wants to get closer to read it, and then you hit them with some scare.
The text reads a bit too slow, I get the theming for slow reading text, but I think this was a bit to slow to keep the eeriness.
I'm not sure why, maybe its a Web player issue, but my camera would sometimes just suddenly flick around, which ruined a bit of the immersion.
Seems to be no collision with some of the objects.
The end seems more like a gag than a scare attempt, which is fine for a game jam.
Nice job!