Continue of successful tower defence with RPG elements. Travel to northern island to get ancient artifact Frost Crown, fight new epic bosses and face the new threat. You will have 12 different heroes in your party with unique set of skills. You can upgrade your heroes with talent points gained per level, learn new spells or abilities. Choose heroes for their mission. Update your strategy according to the actual battle, swich between spells, choosing to attact or cure. Cast mighty spells from a spellbook. Play in several game modes, no spells or hardcore difficulty. You start with 4 heroes and others will join during your trip. Your score is sum of achievements and levels gained in all modes.