Guild Wars 2, when I have an hour so free, it's not worth playing for less than an hour at a time, you just can't get anywhere. lol
Freelancer (of course)
TIE Fighter (the TIE '95 version and there is that club I'm involved in.....)
NFS Porsche 2000/ Unlimited ..... mostly on night shift at work
Any game that looks interesting on Kongregate (no, I'm not advertising, there isn't isn't even a link in this post, that WOULD be advertising if I did that......)
Probably in that order too, actually; I don't really play games all that often these days except for Pokémon during the day and some occasional Skyrim over Skype with friends on the evenings when we've all got time for some fun multisingleplayer action.
Mostly modded Skyrim at the moment, and I have recently discovered a game which I really love. It's called "Life is Strange" and I would highly recommend it to you guys.