I tried to download this game, but I was unable to open the "rar".
Viewing post in Sprout jam comments
Hi there! You should be able to unpack the .rar with Winrar or I think there may be an option when right clicking to extract the files. Hope that helps! Ill try update with a .zip file tonight too, you may have to check the game page rather than the Jam submission (you can click the view game page link next to the game name at the top)