So far in the United States there is only two games out. They are Curse of the Crimson Exiler and The Broken Angel. In Japan there is about four games that I know of now. They are The Broken Angel, Curse of the Crimson Exiler, Dream Carnival, Girl who succeded God.
There is also a fangame made by collage students called Bluebird's Illusion. I don't know much about it though, just that it contains some yaoi, Edward becomes the youngest colonal, Edward is killed and becomes Pride, Alphonse gets a body but his soul is rejecting it. I shall find more information.