Was my GOTY last year, is probably my second-favourite game ever, and is simply the most impressive and fantastic puzzle game ever constructed. Easily worth the full price, even if you "only" reach Room 46. However, the game goes much much deeper than that, and you can keep scratching and scratching and scratching and you will only find more and more under the surface.

Also has an absolute banger of a soundtrack, minimalistic and understated while still being perfectly atmospheric and impactful. That bass clarinet is just wonderful.