Very fun, nice work. I got through level 5. Puzzles were coming together nicely, I liked how there were only a few mechanics, but used in clever ways.
Minor nitpicks
- There was some "pull" in turning left or right that didn't feel great. I got a bit more used to it, but I felt like I was struggling against the controls in that regard a little bit. Especially when I wanted to look around.
- A mouse sensitivity option is so important. I had about a 1 inch space in which I could move my mouse because the sensitivity was so high. It definitely hampered my experience.
The polish is great as well. Minimalistic but atmospheric. Great work.