I liked the puzzles I was able to reach and solve, but once out of the first room I had trouble proceeding because I couldn't see. Putting a dim light on the light switches would be helpful, I eventually found it for most rooms but never found a light switch for the hallway where I dropped one of the tetromino pieces and couldn't find it again. I also wasn't too sure where to go next, I had found two tetromino pieces and either a code or word but nowhere to use them, though I presume being able to see in the hallway would have helped. There is an interesting foundation here though, well done!