Back up only actual files in directory structure
You can pass a list of file names to backup to tar by running find first:

cd ~/Library/Containers/
tar -T &lt;(find com.doublefine.dfaosx -type f -print) -cvzf ~/dfaosx.tar.gz
tar -T &lt;(find com.doublefine.dottosx -type f -print) -cvzf ~/dfaosx.tar.gz


If you prefer rsync it supports a --files-from option which more or less does the same as -T for tar.