Yes, its open world free roam. It is NOT turn based combat or anything like that. The RPG part of it is that you can be anything you want really, mage, fighter, assassin, etc. They have a main story line for you to complete and usually like a dozen factions you can join and do their questlines as well. And they aren't repetitive quests where you "go here and kill ten of these" etc. They're all pretty unique. One of the cool things from Oblivion I remember was a faction called "The Dark Brotherhood" where you were basically a hired assassin, if you ever murdered anyone in game they would come find you and try and recruit you. And then you literally just got tons of sick quests where you have to kill people in particular ways. It's pretty awesome.