Hi, thanks for telling me. I'm sorry you couldn't run the game. I added the system requirements on the game page. Is there a possibility for you to upgrade your OS, or maybe use another computer? If not, I can refund you on PayPal.
I've been in the process of getting an external hard drive so I can backup my system and free up enough room on my computer to update my OS. Hopefully I can get that done within the next month and run the game then, so there shouldn't be a need for a refund. Thank you, though!