expired [PC][Windows 10] FREE - Demon Hunter 2: New Chapter (this is an Artifex Mundi game) - Microsoft Store
This is actually a pretty good game if you like Hidden Object Games. It is made by Artifex Mundi who make quality games in this genre.
It is free for another 6 days and I believe you can only get it if you access the page with a PC running Windows 10 (that is the case for me at least).
For free you cannot do anything wrong, and this is a great time-waster (about 3-4 hours) and is also not too bad for the kids.