Hello, I tried out your demo, there are some things i'd like to point out:
1: When uploading, you should upload as a standard .zip, this enables everyone to download your project. since not everyone has winrar.
2: The walking noise is obnoxious and far too loud.
3: Im not sure how the game with how small it is currently, is 3gb unzipped. I'd work on optimsing your materials and things to drastically reduce the file size, this will most likely be the number 1 reason alot of people wont download your game. its just so massive for an indie game.
4: there is flare on EVERYTHING. i would just remove the flashlight and lighting flares all together, or drastically lower them, its far too much
5: The mouse movement is very "slow" like its not snappy, it sort of lags behind where im going.
6: when you press escape, and go back to the game, you have to press the mouse button to remove the cursor again.
Other then that it looks pretty good, cant really give it a rating yet since theres not alot to it atm, keep going :)