Firstly, apologies for a post about EA. But for anyone who uses Origin*, it is worth looking out for the free games they give from time to time. They are only available for a limited period, but once you get them you can keep them for good.
They had Mass Effect 2 on recently, which is a great game especially if you get it for nothing (I had intended to post that here, but forgot). I got Dungeon Keeper recently (saves me digging out an old cd when I want to play it) and currently Theme Hospital is available. A list of previously available titles can be found here: https://en.m.wikipedia.org/wiki/List_of_Origin's_On_the_House_games
* I don't buy their games anymore, but I still play my back catalogue.