which way do you prefer your game series?
a Linear Continuity like "Mass Effect" where you have had to play the previous games to be able the fully grasp what is going on and who the characters are
an Episodic Continuity like "TES" or "Fallout", where the game entirely takes place in the same universe with references to each other mentioned, but you not having to play the previous games to get the most out of the game
or
a Pure Episodic Game like "Final Fantasy" or "Tales of", where every game in the franchise takes place in an entirely separate Universe that bears some similarities to each other