Hiya, I recommend you to play warlords, it is based on chinese culture and kungfu, it is really cool and I love it. It is free to register and play, so don't worry about it. And yeah, I am really addcited in warlords.
This is the main page
http://wl.91.com/index/ for warlords.
If you wanna read some details about martial art, you can click
http://wl.91.com/info/martial_art,1.shtml