I'm looking at Mount and Blade Warband, don't quite get it
Is it story oriented?
The vanilla game doesn't really have a story. It's a sandbox/open world kinda RPG thing. You basically do whatever you want within the limits of the game.
However if you mod it, which you should and it's extremely easy to do, you can add a lot to the game. New/better items, map, characters, graphics, a story if you want...there's a lot of good mods out there for it. Like say you're a Game of Thrones fan...there's a mod that lets you play within that world. You'll meet characters, pick a side during the war, betray them, rise up through the ranks. Whatever you feel like doing.