Devir presents a d20 setting of Game of Thrones, prestigious river novel of George RR Martin, with low magic and a lot of Treason and Plot (but without the gunpowder, lol).
Anyway.. One of the game Style of game is actually "Game of Thrones" where every PC could be from a different family and of course this brings different goals for each one.
There is a point (possibly if we do a good work as GM, at the final stages of the campaign) in which "the game" set in contrast the objectives of the noble houses of the PC's at stake. So that might be being divided single-person factions (and that is normal) for what the game is concerned.
But what to do and GMs when one player is isolated?, and probably eliminated by the others, if that has to do with the objective of the latter.
Bend a little chance in favor single player (be giving him more options or whatever)? Or show him where he blunder, and he starts throwing again features? [this was a commentary, not the question that I want to go, because it would be closed given that this is opinion]
I do not like as GameMaster, to railroad. But I do not like my players (even if only one) be sad.
But GameOfThrones (more than in other RPGs ... Although in others may also exist, such as Paranoia) the game, even cooperative by definition, ends up being competitive in their last instances.
THE question is: is the game that is competitive or players? How to deal with that?
P.S.: I think Paranoia handles this by existing clones of your PC... so, discard that rpg