Which game made you a gamer?What was special about it?

[xenogears1234]

Started all the way back in the commodore 64 days and then later atari 2600 (console wise), but i didnt become a true hardcore gamer until i played xenogears for the playstation. Up till then i never spent so much time let alone multiple playthroughs till then and that was a huge game in terms of time/intelligence wise to wrap my brain around the concepts brought up in that game.