Avadon: The Black Fortress

The first game in the Avadon trilogy. Avadon: The Black Fortress is a single-player role-playing game. The player assumes the role of a Blademaster, a Shadowwalker, a Shaman, or a Sorceress and after that can recruit up to two other characters (from the same set of four classes) for missions assigned by the leaders of Avadon. (wikipedia)