If you think ME is the epitome of storytelling in digital gaming, I highly suggest you grab Planescape:Torment from Good Old Games[0]. And grab a few mods to modernize the experience[1].
So true! I still have the game box sitting on the shelf for this! It's been ages since I played it through, but it is still the game I look back at the most fondly!
Never realized there was a push to mod the game so extensively. Gonna have to give these mods a try and replay this one!
0. http://www.gog.com/game/planescape_torment
1. http://www.gog.com/news/mod_spotlight_planescape_torment_mod...