Keys of a GameSpace is a short Adventure Game Studio title that rather pretentiously labels itself an "expressive game;" a sort of artist's statement on the site explains that the game is an attempt to explore games' expressive potential and that "games are not a trivial medium of expression." Doubtless some would find this an impressive claim, though I expect most readers of PTT! would respond "well, duh."
But, as most readers of PTT! would also doubtless agree, what's important is the game, not any claims made for it. Keys of a GameSpace has merit.