These are the games which are generally released. After one playthrough pretty much they just take up space. Though, for some, while the story may be interesting, they aren’t worth the price so those are marked as “Watch Playthrough.”
On top of these not being worth your money, they just don’t have anything I can really sell you on. Be it the story, certain aspects of gameplay, or maybe even the price which sort of compensates for its failings.