Dragon age

It's gotten to where I legitimately get nitpicky about the order in which my friends play the games, the party combos they use, and how they go about even the most basic of quests.

I know everything there is to know about every game, I have a strategy for every boss battle, and an OC for every game. 

I can even tell you the perfect party combo for the endgame battle in DAO. (Rogue warden, archer Liliana, half offence/half defence Morrigan, Shale tank.) With the perfect strategy to win every time without fail. I can tell you where to find all of the codexes, etc.

I cannot stress enough how obsessed I am with these games.