Well, what kind of games do you enjoy. The more descriptive you are the better reccomendations people can give. Ultimately everyone looks for a different experience when it comes to games :3
Well, in terms of free to play games :3 There of course is Planetside 2, an awesome shooter with RPG elements on a MMO scale. Another kind of action adventure game still being worked on is WildStar which offers unique 'paths' with which to travel. Should be mostly in the form of MMORPGs. The Payday series is always fun even if you cant get a groupe of your friends out to play with you. Then there is always the binding of Issac if you havent tried it :3 Great arcade style action game with upgrades that make the replay value very high.
This will be a fun game if you like survival types