Hello!
When you have the zip file downloaded, you should be able to unzip/extract all the files. This will create a folder in whatever destination you designate for it to unzip to. When you click inside the folder, you should see a .exe file if you're on a windows machine. I'm not totally sure what the mac version looks like - but there should be an application file in the main folder.
If you click on that, it should open the game up!
(Using the itch app will let you open the games from the launcher itself, which is a little easier than juggling the zip files, but it's definitely not required!)
Please let us know if you have any other issues!
~Esh
heres what i have! yes its catalina, i imagine you and youre friends have had a lot of run ins with that already. i was able to install and run some games that catalina did try to prevent but in this case there is nothing to run it seems, im not a programer so i dont know what any of the files mean/do but this is what shows up for me. if its too much effort to try and figure out whats up i understand if you tell me theres nothing to be done though. i would like to play but ultimately dont want to be an issue when theres other games too be played anyway. i didnt think there would be anything you needed to see in the 'lib' and 'renpy' files plus they would have made very long screenshots but if you want i could also post them too this chain