"We're excited to continue working with THQ to provide fans with the fast-paced, story-driven gameplay that made Titan Quest a global success," said Brian Sullivan, president and lead designer, Iron Lore Entertainment. "With eight new character classes, an entirely new epic underworld to explore, and dozens of other new features, the expansion takes the game's character development and player immersion to the next level."

Developed by Iron Lore Entertainment, Titan Quest: Immortal Throne features a rich, original storyline with more than 12 hours of single-player content per difficulty level. New gameplay features include an all-new skill mastery that combines with existing masteries to form eight new playable character classes. Immortal Throne also adds dozens of terrifying new monsters, hundreds of unique weapons and an additional 10 levels of character and skill development.