Arietta of Spirits was a bit of a surprise for me. Expected a Zelda-clone, cute and with a sentimental story. Got a rather focused action title with an indeed sad story, that was better written than I expected. Not necessarily the story itself, but how it handled loss and death. Suitable for children, still doesn't shy away from getting darker at times, never too melodramatic or forced, rather mature and restrained.
Yes, I likely pixely indie games, sue me. It's also just four hours long.