What program you use to extract game from archive?What you can try:1) upgrade archiver program to latest version2) download game again3) search in internet "how to repair damaged archive".
Or download and install https://itch.io/app
I used winRAR and I have now tried to install the game from itch for about the 20th time
I can't figure out what to do.
There is no installation. You simply extract game files from archive.
Download and install https://itch.io/app