By far the best hidden object game I've ever tried is Manor Matters (
games.lol/manor-matters/ ). The level of difficulty in each level is adequate so that you do not get bored or extremely difficult to pass. The only game that is fun even at a high level and you don't have to pay to have fun. The only complaint I have is that I wish it had been more obvious that it wasn't saved at all unless you manually link it to Google or Fb. My device broke and I had to start over while it was previously at 1500+ level. Still worth it. click here to get the game for free:
www.emulatorpc.com/the-battle-cats/