This question is about importing steam games from Windows to Ubuntu so is similar but I don't think a duplicate.
A little on my situation, I have an old laptop running Ubuntu 14.04 and have Steam installed with some games downloaded or part-downloaded. I've got a new laptop also running ubuntu 14.04 and have installed steam. I have not yet opened steam. If it makes any difference my old laptop only has one HDD whereas my new machine has / on a SSD and /home on a HDD and user name is the same on both.
Is there an easy way to transfer my steam game files from my old laptop to my new one?