Titan Quest Eternal Embers is the fourth expansion pack for the Titan Quest. Its storyline includes four acts and 15 side quests, and can only be completed on the legendary difficulty level. According to the plot, Emperor Yao summons the Hero to the Far East to fight the demons. Arriving in the country, the Hero also encounters the Ten Suns and the Dragon King. The DLC will also add to the game additional weapons, armor, relics and amulets, 7 types of potions, more than 30 ordinary enemies and bosses, the ability to become a master of Neidan an alchemist using potions in battle. Eternal Embers also introduced controller support, improved graphics, performance and loading speed for regions around dungeons.