Hey there. Now this isn't really a game, but it is pretty cool. I made a tool to help those who like playing the "Gumtree" game. It can easily gather search results for multiple searches, and refresh the results as often as you'd like. You can set parameters that can limit the search results, and even block results from ever showing up again.
This is still in development, so expect new features, and I am happy to hear your suggestions!
Get it now: https://incinious.itch.io/gumtree-scraper