When I started playing Kentucky Route Zero, I didn't think too much of it. I liked the visual style and Twin Peaks vibe it got, but that was about it. I think it felt a little too vague and unreachable, so I didn't feel connected. When I picked up where I left off a month later, though, I was hooked!
This game is unique; in gameplay, storytelling, visuals... It is a brilliant magical realist adventure that dives into the deep caves of human emotion. It's also surprisingly funny! It has this dark, subtle humour and these smart references to earlier moments, characters and lines that you encountered. Especially the interludes connect to the main acts in such a way that the whole thing becomes an even more complex puzzle than it already is.
All in all, this is a game I will never forget. It's more an experience than a 'game' in the conventional sense of the word, but therefore all the more special. And if you're still not convinced to play it, read this article; it made me appreciate it even more.

Ranked: Top 10 of All Time