This addon is more or less a “donate to charity, get some in-game content” deal. According to the steam page this addon has generated 300000 $ to animals in need. I'm already on board for that!
The addon adds animals to the Bergson homestead with additional pet food dropping in the dungeons. The pets that get fed the highly nutritious snacks get happier and provide the party with bonuses on their runs.
A small but really neat expansion that helps animals in game and in meatspace. Recommended.