Taunting Donut
This is a one-room game with two simple, but very logical, puzzles. It doesn't aim very high, but it hits its target. The sparse implementation is well-excused by the premise that the protagonist has been abducted by aliens who are not all that sure of what constitutes ideal living conditions for a human being: literally everything plays into one of the game's puzzles in some capacity, and subtle details give the protagonist himself a nice bit of characterization.