itch.io

It’s actually an Android package file, designed to run on any Android device. I was able to open it in Bluestacks, which is a free Android emulator for Windows and Mac: https://www.bluestacks.com/ (But Bluestacks is kind of large, as an FYI. It goes through a gig or so’s worth of “downloading” screens after you install it.) Once you install Bluestacks, just click the “my games” button on the main screen, which is shaped like a heart, and it will give you an option to install from a local APK file.

You sould be able to install it directly on an Android device, as well, if you have one but you’ll need to enable installs from unknown sources first: https://support.google.com/android/thread/107226949/how-do-i-allow-download-from-unknown-sources?hl=en (This is generally a bad idea to leave turned on, so I’d recommend turning it off again after playing this, if you go this route!)