But beside all mentioned above there are two games that I believe had great impact on me.
Planescape: Torment
Storywriting is where this game stands above all else ever made so far. Filled with unique characters and smart dialogs, puzzling situations and life dilemmas, Planescape: Torment is the game of many sides. In the cage-sity, the Sigil, there is a place for everything from everywhere, often mixed up resulting in truly bizzare situations, sometimes humorous, sometimes so deep that you'd think about even after completing the game. It's a great story that you explore not only until the very end of game but after that in your own imagination. Until I played PS:T I never thought the gaming media might not only come up to the level of serious storytelling but also exceed it with freedom of choice. Another thing I like about it is the music accompanying player through the journey, it may be repeatable and annoying at times but in right moments it really helps the game, like theme at the Fortress of Regrets. Planescape: Torment is a masterpiece.
Albion
Unlike PS:T it's a relatively unknown game, developed by the thalion group of amiga's ambermoon/amberstar fame. I don't even know what makes it so unique for me, perhaps it's the atmosphere of the alien world. It's interesting how a game with somewhat old graphics still makes the gameworld so believeable unlike any of those modern games with latest technology. But there is no magic: it's one of those rare gems that turns on your imagination to the max while you play along. While not anywhere near PS:T the Albion delivers solid story on a level close to the classics of sci-fi novels.
Well, that'll be it. No new games in the list. As for Freelancer itself... To be honest I expected more from it, perhaps that is the reason of a certain dissapointment with it, but on the other hand it's a great game if you weren't expecting what developers were promising, too bad for me because I did.