Indecision.

I played a thing. It might have been a game. It's called Indecision. and it left an impression on me in the 40 minutes it took for me to finish it.
I would tell you more about this game, but I can't. For one, because that would spoil it. But also because there isn't much to say about this game. It's more of a collection of ideas, more of an experience than a proper game. It doesn't cost much anything, time- nor money-wise, maybe 2-3 hours to see everything there is.
It's really quite brilliant, and I simply had to give it a spot on my list. I wasn't really sure what to file it under, but it seems my "Story Puzzle" category is currently occupied by these "experience" types of games. As the creator also mentions, this game is not for everyone, but it was an experience I needed, and I would recommend you experience it too.

PS. I think there's potential in some of these ideas to be developed further, into something bigger. Indecision. gave me some weird, somewhat unfounded hope that we will not be running out of games that push the boundaries of what can be done in games, even if this game alone is not that remarkable.