Saying the world of Dark Souls is vague is putting it lightly. This game drops you in with literally nothing except a few hastily scrawled messages on the floor of the prison cell around where you awaken and it is up to you, the player, to find exactly what the hell is going on in Lordran.
Heck, perhaps you didn’t even know the world of Dark Souls is called Lordran. It’s not mentioned much. If you do a little digging into the game, you can literally piece together everything from the lore of the world to unique attacks that aren’t mentioned at all during the entire experience. Dark Souls is a game about learning, and maybe if you watch this video you could learn a thing or two about the amazing game Dark Souls.