There is a list
here of all games they developed or published. I thing MaG got them all.
The only trilogy I see is: The Paulo Coelho trilogy:
Pilgrim: Faith as a Weapon, 1997, (Adventure game) -- (Infogrames Entertainment)
The Legend of the Prophet and the Assassin, 2000, (Adventure game) -- AT
The Secrets of Alamut, 2001, (Adventure game) -- AT