Downloading files from Dropbox

Yes it is possible. The question is are you capable to do it. Is your project for mobile or desktop platform? Do you have experience in writing plugins?

Dropbox have API for developers and it's here: https://www.dropbox.com/developers As you can see on these links some guy's already built some stuff with it: https://www.assetstore.unity3d.com/en/#!/content/4096 https://www.assetstore.unity3d.com/en/#!/content/62108

If anyone else will face same problem: I just created asset for easy downloading from Dropbox and realtime tracking of changes: DropboxSync - Asset Store

Example usage:

 // Download Jpeg image from Dropbox (or used cached if no updates)
 // and receive it as Texture2D object.
 DropboxSync.Main.GetFile<Texture2D>("/DropboxSyncExampleFolder/image.jpg", (res) => {
     if(res.error){
         Debug.LogError("Error getting picture from Dropbox: "+res.errorDescription);
     }else{
         Debug.Log("Received picture from Dropbox!");
         var tex = res.data;
         UpdatePicture(tex);
     }
 }, useCachedFirst:true);