Horror-wise, it's quite nice. I like the sound design, and I think you had a lot of fun assigning them. The guns feel nice to aim and shoot, and the spiders are very creepy-looking, too.
Still, I have some nitpicks. I think there was not much balancing; the character feels too heavy and sluggish, the gun phase through wall, and the enemies are too quick to handle. Also, having more objectives (like some missions while escaping) would be a nice addition, too.
Overall, a very good job of whipping all of this up within 48 hours. It was enjoyable, and I understand that making a 3D-based game is hard to handle with all of its components. Great job on finishing the jam!