Looking at the nominees,
"The Stanley Parable", is pretty much a not game
"Dreams of Your Life", at least has some aspiration to be a mature game. I tried playing it though, but were not in the mood
"Botanicula", is not that gamey, but more playing around? Or perhaps I misunderstood it.
"Analogue: A Hate Story", is more of a visual novel. (not played it, but have it on the play-list).
So not that bad?