Well there was a topic about this game ages ago and I completely forgot about it except that I saw an ad for it on a random site so I went to investigate.
It is entirely browser based and is very much like WoW, although it is F2p. The only downside is it has a cash shop (though it doesn't seem necessary to actually buy anything) and that every single race is a furry (So you choose something like a demon instead ;).
The one thing about the cash shop however, is that to get cash shop items you do not need to pay IRL money as all items can be bought with ingame currency too, it's just far quicker if you pay cash.
As it is browser based it is of course direct competition to Runescape, and one thing I've noticed is that it is graphically superior. The character customisation is rather cool allowing you to edit most things about your character.
There are currently only 4 classes to choose from, but it is only the BETA.
I haven't played it long enough to make a decision but I'm up for anything free that isn't Runescape :)
EDIT: Took a Screenshot of my newbie character. I've done almost nothing seeing as I had a few issues getting it to work.