Fate/Stay Night is the first game release by Type-Moon (the people behind Shingetsutan Tsukihime) after becoming a
commercial company.
Introduction from The Moonlit World...
"Fate/Stay Night is about war between seven sorcerers (Masters) and their familiars (Servants). The last one
standing is said to attain the Holy Grail, which will grant them their wish."
F/SN is currently being made into an anime, which is scheduled to start in January of 2006 (I think). Produced by
Geneon. Animated by Studio Deen. More importantly, Type-Moon is apparently taking part in the project
(hurrah!).
If you want anymore info. just check out The Moonlit World (a Type-Moon fansite):
http://www.geocities.com/max3075/top.htm
There are loads of spoilers there. You have been warned. ;)