You can retrieve your digital download right from the Macgamestore.com web site. Here's how to do it.

1) Go to the Macgamestore.com home page.

2) Click on Account (top of the page, right side)

3) If are not logged in, log in. Then go to where it says "Digital Downloads". Click on "List".

4) Here you will find the serial number for your game (if any). For more information, click on "List" next to the digital download to get the download link, embeded serial numbers (if any), etc.