when i finished downloading the game,  i would try to open it but it says i don't have permission to open it, and to contact my computer or my system administrator. do i have to download something on my mac to play it?

Hi josiea,

The “Questions & Support” board is for questions and support about the Itch.io site itself. If you have any questions about a specific game, the best approach is to go to the game’s page and leave a comment there. Alternatively you can contact the developer directly, if they’ve provided contact details on their profile.