The Fate/Stay Night game had the first arc (of three) translated. The three arcs are Fate (which the anime was more or less based on), second is Unlimited Blade Works (a story more centered around Archer and Shirou), and the third is Heaven's Feel (a story more centered around Sakura, and Rin).
I'm ECASTIC! It's one of my favorite games. Keep in mind there is some ero content, but you'll bore yourself to death trying to find them. They take such a minor, minor, minor backseat to the story.
The style of gameplay is similar to Tsukihime. So make the wrong choice, you die! And a tip I learned playing the game, try to mold your own beliefs to fit that of Shirou's. You can't play the game with your own beliefs, unless you're a naive idiot.
Fate/Stay Night Patch
You need to buy the game to play the patch. I'll show you guys where it is later if you need help, but I already have the game, the patch download is done, and I'm bailing on you guys halfway! Ha!