Fate/stay night: PC (with ports to PS2 and PSV), abbreviated as FSN or 5th time, the most famous work, it has been introduced everywhere, so I won’t introduce it.
Fate/hollow ataraxia: PC, referred to as FHA, the official fan work of the previous work. The characters that appear are basically the 5th time. The important characters include Kallen (the daughter of Mapo), Sister Ba and Revenge. (Both of these were mentioned in the previous game but did not appear).
フェイト/タイガーころしあむ: PSP fighting game, referred to as Tiger Holy Grail, the characters are all from FHA, a funny work. フェイト/タイガーころしあむ アッパー: PSP fighting game, the sequel to the previous work.
Fate/unlimited codes: Arcade fighting game (with transplants to PS2 and PSP), referred to as UC, a serious fighting game. The characters are basically from FHA. The PS2 version also has a zero spawner.
Fate/EXTRA: PSP's RPG, referred to as EX, some of the fifth characters appear (but not themselves). The Holy Grail War in the parallel world is basically original characters, and the protagonist is the player himself.
Fate/EXTRA CCC: PSP's RPG, referred to as CCC, is a sequel to the previous game and adds several new original characters.
Turro Hanafuda Chuki: PSP's Hanafuda game, there are two games, it is the FSN version of the PSV version that comes with a bonus, the characters are zero, FSN, FHA, EX, and even Prototype character brawl (just playing cards ).
There are too many fan games to list.