There could be instances, where users might not want to simply deploy the code in Salesforce but need to download the files and make amendments before deploying into Salesforce. Playground application gives the user flexibility to download the play files locally and make changes as needed.
In order to download the play files, move to the Play Detail page and click on More Action dropdown. It will expand the list and the user can click on the Download button.
Clicking on the download button will download the files in a Zipped format. Once the user unzips the folder, the files will be arranged in the src folder just the Salesforce structure. Here's an example :