I enjoyed this game very much. It took a while to play, but kept me drawn in the entire time. Here's a breakdown of specifics:
- I liked the music, and I like how it changed depending on the state he was in. I think something that could've made it better is if the music became creepier as you get higher in the building.
- I liked the clues that were scattered throughout the game, it kept me interested in where the story was going. Unfortunately, it got to the point where the clues were kind of beating the player over the head, making puzzle meanings, or the overall story a little too obvious. Be that as it may, I can understand making sure the player "gets it" before Adam does, as he has a REALLY bad case of cognitive dissonance (ex: he looks at a picture the player KNOWS is him and his father, and Adam's reaction is "This is a picture of ... I don't need to know). I liked that element
- I liked the tension created by knowing the killer could be around every corner, and I liked trying to figure out just what his eventual role will be the bigger picture. I see that some people thought getting away from him was hard, or being caught was a "cheap death", but I found avoiding him really easy. On the entire 13 floors, I think he killed me maybe three times. The following isn't a criticism, only an idea. I think the killer could have been better used if he appeared in different forms throughout the game. For example, showing up with his arm raised instead of just holding the knife, or being a little more visible on the higher floors. Just something to change things up so his presence didn't become monotonous.
- I know this has been mentioned before, but I think Adam should have found more objects interesting. I understand if an old photo we've seen on 7 other floors isn't interesting, but there were plenty of colorful paintings and photos that grabbed my attention that I think should've grabbed the main character's too. Even if they weren't relevant to the story, it could have provided some false leads, obscuring where the clues led a little bit.
I'm sorry to say that I was a little disappointed in the ending(s). The game had a great story, gave a good sense of mystery, the last room emotionally gripping, and I even liked the ability to see the photo that was obscured in the game over screen (depending on which one of two endings you get), but the monologue after that room was a bit of a let down. I was expecting some huge revelation or some kind of closure. I don't know what to suggest to make it better, as it was your intention to leave it as a cliff hanger, but I think there's a way to leave the audience wanting more, while resolving the story we enjoyed seeing play out in front of us.
I hope my criticisms haven't been to harsh because overall, I really enjoyed the game. As a person who enjoys adventure games like this, I had a lot of fun. As someone who hopes to one day make one, I learned a lot from your game.
Good luck on the next, and thanks for making this one. :)