Solid_Raiden on 08 February 2009
Prince of Persia is around 8 hours, and Valkryia Chronicles takes about 30+ if I'm not mistaken. Can't say for Fable 2, I got bored of it and never finished it. I know the main story is very short, probably 6-8 hours so if you see higher playtime then that from people they are adding in side quests and things to do which is hard to judge.
