What is your favorite online game to play? Mine is swords and sandals two: emperors reign?

If you want a Free2Play try robocraft. It's like Minecraft with vehicles and awesome

RIFT because it's F2P but is similar to WoW. Plus the community is easier to play with than WoW (in WoW if you don't play for hours every day, you're a "scrub" and too far behind everyone).

I have a few, and they are constantly changing. Final Fantasy XIV and Diablo 3 are my games at the moment. When I'm at work, I will play Runescape to help the day go faster as well.

Killing Floor, a cooperative first-person shooter video game.