Mostly FF14 and dota2 at the moment. Waiting for steam summer sales to pick up a few more games for the PC
Well, the last version I played was 1.6. The guys at Valve have made some very promising changes and their Global Offensive or GO is quite popular nowadays actually.
After seeing how addictive fb games are to people, I resisted because there just isn't enough hours in the day. But I was feeling left out of the fun when a couple of guys at work were playing Words With Friends on their smartphones. I'm a fairly good Scrabble player, so this game appeals to me, though most people probably wouldn't think it's that exciting.
At the moment I play Dota 2, Sims 2, Grand Theft Auto 5 and sometimes I like to launch old games I used to play such as Need for Speed Underground, The Elder Scrolls IV: Oblivion etc.
I've made a list of "All time best games". It may be a good idea to play them even now if you havent played them before. Fable, KoTOR, Dragon age, Black and white 2.
Just played through Dishonored on PC. I have to be careful with gaming though as it can take over my life! I can go on mammoth day sessions hoarding Steam achievements and getting nothing else done