Compared to other composers and bands I've seen, Vachey's discography is fairly short; however it does include the famous survival horror title Alone in the Dark. Other games he's scored are Little Big Adventure and its sequel, a Cthulhu game, and Nikopol: Secrets of the Immortals. With a few exceptions, most of Vachey's work has been for adventure games.
|Probably not a Dreamcast keyboard|
In my perusal of a couple interviews, those conducting the interviews seemed to focus on his various forays into adventure game music, rather than our beloved Dreamcast title. It is almost certainly an outlier among games like Alone in the Dark, Little Big Adventure and Nikopol: Secret of the Immortals.
Another tragedy is the unreleased Agartha. Had it not been for circumstance, No Cliche would have released their survival-horror game on the Dreamcast, all set to the notes of Philippe Vachey. Nonetheless, Toy Commander is a solid OST for him to call his first, and last, on the console.