First, great job, I had a really good time playing your game!
It is really intuitive. I got stuck on the last level because I didn’t notice the lever on the ceiling at first, but after playing for another five minutes, I managed to finish the game.
The core mechanic is really cool, and I especially liked the fact that you can’t deactivate a lever once you’ve activated it. It made it much easier to keep track of what I had already done and what was still left to figure out.
That said, the game did start to feel a little repetitive after a while. Introducing a few new mechanics as the game progresses could have added more variety and made the later levels feel fresher, while still keeping the really solid core mechanic.
The sound design fits the game really well, although having more variety during the dream sequence could have made the atmosphere feel even more tense and immersive.
GG & W !