Fate Watch Order - Main Series
Anime
This is the watch order I used the main anime of the Fate franchise. As Fate is highly infamous for having many different watch orders, I do not claim this order to be the only one possible, however from my experience this order is optimal in the sense of minimizing spoilers. As Fate is originally a visual novel, I recommend watching the first three routes in order and save the prequel for last. The list does not include spinoffs, which are obviously only meant to be watched after you have completed the main series.
TV, 2006,
24 eps
Me:-
Author:7
The original Fate/stay night anime by Studio Deen. It deals primarily with the first route (i.e. the Fate route) of the Fifth Holy Grail War, in which Saber is the main female lead. Even though the adaptation is poor, I highly recommend starting off with the original, since it provides context for later entries in the series.
TV Special, 2014,
1 ep
Me:-
Author:8
A 50 minute introductory episode for the second route; Unlimited Blade Works. Shows the beginning of the events of Fate/stay night from the perspective of the main female lead: Rin Tohsaka.
TV, 2014,
12 eps
Me:-
Author:9
First season of the Unlimited Blade Works route by ufotable. Considered a reboot of the original series by most, but it does have some major plot deviations later on in the show.
TV, 2015,
13 eps
Me:-
Author:10
Second season of the Unlimited Blade Works route. Don't forget to watch the epilogue episode!
Movie, 2017,
1 ep
Me:-
Author:8
The Heaven's Feel route is the third and final route of the Fate/stay night series and stars Sakura Matou as the love interest. The route is adapted as a movie trilogy.
Movie, 2019,
1 ep
Me:-
Author:9
Second movie of the Heaven's Feel route.
Movie, 2020,
1 ep
Me:-
Author:9
Third and final movie of the Heaven's Feel route.
TV, 2011,
13 eps
Me:-
Author:9
The prequel to Fate/stay night which deals with the events of the Fourth Holy Grail War. It is meant to be watched after you have seen all of Fate/stay night. Watching Fate/Zero first spoils the plot of the Heaven's Feel route, so I highly recommend saving it for last.