Warcraft III: The Frozen Throne Expansion set. Requires original Warcraft III to play. It has been some months since the events of the last Warcraft, where the Burning Legion was defeated in the battle of Mount Hyjal. But there's no time to rest and rebuild, as a new threat has arisen and the need to take up arms has come yet again! New features in this exciting single-player campaign include one new Hero per race, with powerful new magic abilities All-new units for more diverse strategic combat options and a new level of gameplay Player-built shops offer new items that will help you in your quest Neutral Heroes and buildings available to all players to supplement your army and provide new upgrades