This game has been on my radar for a while, but I finally played it, and oh my gosh, it was stunning! I loved the visuals - especially the realization I had around the blue level that we were going to be stepping down through the rainbow. There was a lot of nice variety in the puzzles, which all felt clever and unique; some stumped me for ages and others I got immediately, which was a fun experience.
At the end of the game I was like, wait, how can there be a second ending? and went through my inventory, then climbed back up the tower to see what I missed. Definitely worth it! The gray area had such a great, unsettling atmosphere.
Great game!