<p>To writer Narita Ryougo, it is just his own parallel world, created merely by his imaginations.
As an example, the relationship between elkindu and gilgamesh: in both {fate/stay night} and {Fake}, their conclusion is the same, but the process has been slightly changed.
Concerning the differences between all of {fate series stories},
F/Zero is {same kind of set-up/setting as {F/stay night}, but slightly off in a sense}.
F/Apocrypa is {Same until it reaches a turning point then suddenly changes into a very different setting}.
Lord el meloi ii case file is {Same world, but Sanda Makoto's spice caused changed in the setting and focused mostly on magic related stories}
Finally {Strange Fake} is same setting, and same ending but, somehow turns out to be a different universe.
- Fate/strange fake 1st release review </p><p>Spinoff series has a slightly off settings and changes in their own universes from {Fate stay night}, so they have relatively high amount of freedom in the form of writing in each stories, but {Lord elmeloi ii case files} has the same universe as Fate/stay night, so Sanda is trying his best to not contradict the story line between the two.
- from a part in type moon ace vol.10 Narita Ryougo Interview </p><p>返事もせず遮断を解除もせず、間違った情報に戻している理由が何ですか? </p>