Oh this is very helpful! Yeah I kind of forgot to remove the sprint from the testing. (I'll probably leave it but massively reduce the speed- feels odd to remove a sprint after it was in). Hmm- as for not being to tell that the game was over I was thinking about adding some kind of audio or catalyst that draws the player back to the front of the house (it seems a few people have gotten stuck here as well).
I really like the idea of changing Paul's handwriting as well, that seems obvious now that you mention it but should be a quick fix to add a lot more immersion and clarification as to who was writing it. I also quite like your idea for the world shift having post-processing and other effects to really sink in the uneasiness there- and you can probably expect to see a couple modifications to that hallway segment in post-release because it's been on our mind too how we could better deliver that atmosphere, and post processing sounds like a really good way to do that.
This was incredibly helpful and I really appreciate you taking your time to post this! I'm also very thankful to you for taking your time to play our game, and am glad to hear that you enjoyed our story! I know short-bittersweet narratives aren't everyone's thing and I was honestly decently worried about the reception of such a game. Also, we would love your feedback on anything we post in the future! You seem to have a very good head on your shoulders for game design and when we post our next projects, should you want to, we would love to have your input!