I've been reading some threads on
The Elder Scrolls forums that argue that Oblivion is not a role-playing game. The implication of such an assertion is that the target audience largely assumes Oblivion
is a role-playing game. It must be noted first, there is probably a reason for this.
Reference was made in a particular post to The Elder Scrolls III: Morrowind, describing it as a true example of a role-playing game. I haven't played Morrowind, though I am tempted because of all the positive reports I have seen.
As for Oblivion, I find it impossible to experience it as anything other than a role-playing game. That is not to say it is strictly impossible for it to be perceived or experienced in any other way, but my own desire to role-play is facilitated beautifully in Oblivion. I can't imagine anyone finding difficulty role-playing in this environment.
The post to which I referred, but which is regrettably lost to me, described ways in which one could merely hack-and-slash one's way through the game. It also describes, though very vaguely, some of the role-playing elements of Morrowind.
Not having played Morrowind, I can't say for sure, but the impression I get is that Morrowind
forced the player to role-play. This is not necessarily a bad thing, and could easily be a tremendous asset, depending entirely, I think, on its execution.
But one of the strengths I see in Oblivion is the
freedom I have precisely for role-playing. For example, I am in no way compelled, in spite of Jauffre's assumption, to pursue the main quest. If it does not suit my character's personality or motivations, then I am free to ignore that quest or any other without lacking an abundance of engaging adventures.
Not only so, but I also have the freedom to allow my character to grow and change as real people do. As a result, my character may begin selfish and concerned only with riches, but may gradually or through some traumatic event become interested in the stakes of the main quest or some other quest.
For example, I might have a Nord who considers himself a Son-of-Skyrim who is only passing through Cyrodiil. Yet, not heartless, and perhaps imagining the implications for Skyrim and the rest of Nirn, he decides to bring Martin to safety. He might reasonably expect that to be the end of things because he couldn't know Jauffre would err so egregiously (and then take no responsibility - did you notice the bulk of the main quest hinges on Jauffre's ineptitude for which he never apologizes?).
So, this Nord might become a reluctant hero or uninterested in cleaning up the Imperial mess. He might also have been eager to kill Daedra from the beginning just for kicks or as a matter of principle.
I have a Nord character named Magnus who saw himself as only a strong man. He participated in the arena and joined the fighter's guild. But he received an inheritance from a long-lost relative who was, apparently, some sort of wizard. Thus, his mind opened to possibilities, and he has begun to develop magical skills, though he has no real natural talent for it.
I have a Bosmer, Braelon Goldenthorn, whose love is wandering the country side, running with the animals (that aren't trying to eat him) and sleeping under the moon. I don't see this guy pursuing either the main quest or any of the faction quests. But things could change.
As another hypothetical, I might have a happy go lucky thief who is out for adventure and gold. If he incidentally becomes infected with vampirism, he might be so offended, horrified, etc. that he takes as his life's purpose the eradication of the disease and it's carriers.
One of my favorite aspects of Oblivion is that it is so open-ended. By every standard of role-playing game since Dungeons & Dragons, Oblivion is most definitely a role-playing game. Of course within the genre, there are infinite possible variations. Some provide more guidance; some provide more freedom.
I have to say also, I've seen many nay-sayers on the forums whose purpose seems only to pick nits and indulge some desire to complain mindlessly. I don't suggest that Oblivion is without flaws, but having begun many years ago with paper, pencil, and dice, I can't make much of them.