Once you extract the zipped file - put the unzipped folder "Keri-Dressup-RenPy-Template" into your "Renpy Projects" folder and that is all that needs to be done. Be sure to press "refresh" at the top of the list on the Ren'Py launcher. Just to add (as I've said before and in case it was unclear) this is a template to work from (and learn from) to potentially adapt into your own games. It isn't a game. You can run it as one to test out the dress-up mechanics but in order to utilize it for what it's for, you'll need to know how to code in Ren'Py. There's a lot of questions about simply opening the project which is the easiest part, so just know this is a coding template. Thank you.