My fascination with these was because I loved and still love Agatha Christie, I loved and still love hidden object games, and crucially, I could play them for free. Christie cut out the bits where he came to his brilliant conclusions after first finding an old tennis racket, a shoe, a spider, some seashells and a kite, and deciding they were irrelevant. In between still-image cut scenes, where Poirot deduces things like 'this is the gun wot done it', he has to go rummaging through a bunch of junk.
Although I sort of want to call them shovelware, even though they're not exactly that. Enjoy the stretched images, because the games weren't made for modern aspect ratios. You can do Death On The Nile, Murder On The Orient Express, Peril At End House. The premise is that you, playing as a version of fussy detective Hercule Poirot who looks like if someone drew David Suchet on a thumb, play through his most famous mysteries, but in hidden object form. Most of them have their own slightly shady launcher.
If you search 'Agatha Christie hidden object game' you can find these, available to buy apparently legitimately, from a few places. One a day, every day, perhaps for all time.
Have You Played? is an endless stream of game retrospectives.