Not that I've played every game I'd like to from 2016 but Inside blew my mind. Perfection.
Pacing was amazing. Atmosphere and visuals were stunning and all the actions/interactions/puzzles and animations were flawless. Really blew my mind, with the story being a vague enough to keep me thinking about it long after.
Left me with a real sense of "wow, this is what can be done with video games".
Look forward to replaying it.