i just finished playing Bioshock. There’s two alternate endings, I took the good route, and boy, the end film was really nice, at least this game doesn’t leave you with a sudden ending, a suitable climax, and the ending is really an ending that was worth it (at least to me).
(Spoiler alert) You can see the alternate ending at Youtube, if you want.
Overall score of this game : 9.8/10. Well recommended.