Hey, somewhat! I just finished beating(heh) the game, and I really enjoyed it!
Everyone else has touched on themes and inspirations that I picked up as well, so I won't recap all of them. But, the whole thing was right on my wavelength overall.
First I wanted to say that Silent Hill 4 is actually my favorite Silent Hill game just for the apartment segments, so I absolutely loved being confined to the creepy apartment in this game. You did a great job making the apartment feel safe and unsafe all at the same time. I loved the little touch of frustration and confusion in the to-do list about where the key is. Why our protagonist didn't know/remember he stashed the key where he did is still up in the air for me. Was it drowsiness from sleeping pills, or maybe he taped it to the painting during the move and forgot? Maybe another ending explains that?
I also loved that you've given us room to interpret meaning and I've taken the game to be sort of a reflection on self-indulgence and how that relates to guilt. Masturbation, kinks, fetishes, drug use, all the good stuff, basically, haha!
I was just curious, though, because the ending I got was the same as all the others I've seen posted here, do you have a video of the other endings? Or some way you could say what they are or how to get them? I feel like there was so much linearity to what we were doing I don't see how it gives room for other endings. I did see your tip about watching TV, though, so could you at least reveal if that gives BOTH other endings?
All in all, this was a really awesome game and I hope you continue to make more stuff like it! You'll always have an audience if you're putting out great content like this!