This is an idle-puzzle game where you play as the failing kidneys of a dying dog, pet to a lonely, elderly farmer. As the dog's life dwindles, the dog's system needs ever more frequent check-ins, until eventually you must accept the inevitable. Or must you?

It's a uniquely depressing game to play, but the developer does an excellent job of treating the subject matter with the right level of heartfelt sincerity. I don't think there's anything else like it.