Immortal Throne will transport the story from the swamps of the Mediterranean to the depths of Hades, and features a rich and original storyline with more than 12-hours of single-player content.

New gameplay features include a new skill-mastery, combining with existing masteries to form eight new playable character classes. The expansion also adds dozens of new monsters, hundreds of weapons, plus an additional ten levels of character and skill development.

"The summer release of Titan Quest marked a strong global success for THQ on both a critical and commercial level," said Bob Aniello, senior vice president of worldwide marketing, THQ. "Titan Quest: Immortal Throne will provide the large existing fan base with exciting new content."

Titan Quest: Immortal Throne is scheduled for release early in 2007.