I enjoyed the demo. It has a lot of promise, though there's a couple of thing I'd like to see improved in a full release, I'll wishlist cause I'd like to see where this goes.
* Sound design is a bit all over the place. A lot of the sounds are good and add to the atmosphere, but I found them often panning way too much into the left or right channel. A lot of the voice acting doesn't really sound like it's coming from someone standing in the middle of a forest, which kinda kills my immersion a bit.
* The highlight on a selected item in the inventory screen is kinda difficult for me to spot. I'm colorblind so maybe that influences it, but I feel like it could have been made more clear. It resulted in me struggling with the inventory more than I should have.
* The combat is really simple. I think it would be more engaging if you actually had to do a bit of aiming, at least making sure you're facing the enemy. It locking onto enemies through walls also feels a bit weird.
I also feel like the pace of which you gain secret tapes is a bit quick. They take a while to listen to, and I feel like they give a lot of information about the main villain really early which I didn't find too interesting without anything to really reference it with. I feel like it removes some of the mystery too which lessened the fear of the unknown.
These were some of my thoughts after playing the demo, I wish you the best of luck on finishing this game.