Yep, it's a RPG. There's a hell of a lot to the game. You can pretty much do whatever you want in the game. You can eventually buy a house and get married or marry a woman in each town if you wanted to, ha ha ha. Then if the woman gets on your nerves, you can just carve her up and move onto the next one, ha ha ha.
Heck, you can even get different haircuts, shave differently, tattoos, and the clothing, that change the way the people look at you, either clean cut for them to admire you or look rough and have them be afraid of you. They cover everything in this game. It's VERY detailed.
If you wanna get all of the details about the game, IGN gives a pretty good 8 page review of the game that covers everything. They give it a 9.3 rating and the reader score is 9.5, so it's not just me that's digging this game. Here's a link to the review here -
http://xbox.ign.com/articles/542/542632p1.html