@Fehafare: I haven't even thought about the other Fate Series outside of Zero and Stay night
@Galenbeta: There's Fate/Extra and Fate/Extra CCC which is a game RPG series. There is Fate/Fake Strange which while not canon is interesting to say the very least. There is Fate/Prototype which is how the original FSN was supposed to look like (something might become of it one day) and there is Fate/Apocrypha which at first was a MMO game in the making but was dropped because of balance issue and rather than that was turned into a Light Novel. And oh there's also Fate/Hollow Ataraxia, the sequal to FSN.