Here is a nice little game I bumbed in to. It's a mmorpg which runs on a browser/facebook. Very easy to play and very addictive. Specially with friends.
|As you can see the graphics are pretty nice for a game you don't have to download.|
Here is a description from the site:
"Gunshine.net is a free-to-play social roleplaying game that runs directly in your browser - no plugins required.
The game has been designed to played together with friends - co-op battles have never been this easy to access and fun to play"
Game link: http://www.gunshine.net/