This is one of the most games I've played in a long, long time. (I couldn't find the right adjective, but Fishy has me heart and Andy has my hope). I'm one day in, and it gives me melancholy and delight in equal measure. Thus far, I would highly recommend this to any player (and their Fishy, if applicable).
(I had a slight issue playing it on Mac, despite your directions: I had to open my security settings to get it to play. I've had it do that with other apps before, but it could just be my computer being fussy).