Loved the presentation and the atmosphere. Music was awesome and I loved how it changed once I had just two people left; it felt like it dynamically represented the tension really well. The exploration felt nice too with things like the iron beating heart that made me want to look for more lovecraftian things. I should also mention how the writing got me quite engaged.
I feel like it was a bit unfair to have no warning for when a monster sits in an unexplored room though it does add a good deal of dread to every step. Maybe sound cues could do the trick? Controls felt a little clunky too. I would've loved to play this game with just the keyboard or without having to move my hands between the mouse and keyboard too much. I wanted to read every log but kind of stopped later because I had to move my hand from the arrow keys to the mouse to turn to it everytime I changed the camera. By the time I got to the third iteration I played the game just flipping between the screen and journal. Goals and payoffs were needed but I think that was more because of time constraints.
In the end though I loved it! Would love to see this concept fleshed out!