Wow this certainly needs a beast of a PC to run smoothly, but it is Unity so to be expected.
U-engine may have been a better option for a game of this nature, but Unity is a good place to start your craft.
The buildings need to be sealed zones so the audio, lighting, fog and the rain do not cross where they do not belong.
The deadly water needs some explaining as you can swim but it harms you.
Either the water is toxic or this needs a better way to deal with it.
Things you are likely aware of but I should report anyway.
Sometimes I see giant spider legs protruding from the lake (maybe I should stop eating those wild mushrooms).
The spot effects need more variety.
eg. The 1 sound the bear makes while attacking makes me want to disable the audio. The bear doesn't stop to breathe between attack sounds. The need to be spaced apart more or it sounds like several bears at once.
I would suggest that the start point should have more items in the room to give a sense of ownership rather than a storage shed.
Also that perhaps you look at adding the ability to take a candle from all those candle-sticks you see, for a more limited light source.
A diary page, scroll or something written in the room to give you your first objective.
My sense when I look around and then look back at the building is "I don't know who it belongs to, and I don't think it is mine".
Very promising looking game, but I am just starting to explore so don't have any feedback on the mechanics yet.