Warrior, Rogue, and Mage plays a generic class system without classes. Your character is your own.
I'd compare the system a little to the Fable series. You build up a character who can fight, sneak, or cast, and sorta use that the best you can. I'm butchering the description, but my point is this:
If you wanna try something quick, and play a character that's exactly the one you have in mind, WRM is great!
Plus, it's free, so it's not like you have to play it if you get it. So get it.
[5 of 5 Stars!]