
Nancy Drew: Warnings at Waverly Academy (Not a hidden object game, in my opinion.)

James Patterson's Women's Murder Club: Twice in a Blue Moon (Probably not a hidden object game in my opinion.)

Alabama Smith in the Quest of Fate (Great game. Hidden objects are a factor, but secondary to the game.)

Alexandra Fortune: Mystery of the Lunar Archipelago (Good Game.)

Nancy Drew Dossier: Resorting to Danger

Escape Rosecliff Island

Haunted Hotel II: Believe the Lies

Adventure Chronicles: The Search for Lost Treasure

The Serpent of Isis
Mystery Legends: Sleepy Hollow

Nancy Drew Dossier: Lights, Camera, Curses

Mystery Case Files: Return to Ravenhearst

The Lost Cases of Sherlock Holmes

Dream Chronicles 2: The Eternal Maze (Great game.)

Escape the Museum

Haunted Hotel

The Nightshift Code

Agatha Christie: Peril at End House (It is my very strong opinion that this is not a hidden object game.)

Mystery Case Files: Madame Fate

Pirateville

Dream Chronicles (Great game.)

G.H.O.S.T. Hunters: The Haunting of Majesty Manor

Agatha Christie - Death on the Nile

Hide and Secret

Mystery Case Files: Ravenhearst

Mystery Case Files: Prime Suspects

Mystery Case Files: Huntsville
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I do believe that there are many more "Hidden Object" games out there, that the web site didn't list, and I'm pretty sure that I have a few of them. However, that's too much work for me tonight. Maybe in a month or so, I might come up with them.
p.s. The above games I have mentioned are only ones from the website's list, and are NOT from any list I have created. I just picked out ones I saw on the website's list that I had. I think the website is wrong on several, and has overlooked a bunch of other hidden object games.