Additions

Additions
A Human base.

For each race, The Frozen Throne adds several new units and buildings, including a player-controlled shop, and one new hero per race. The entirely new race "Naga" has also been added, and can be played in several Night Elf and Blood Elf missions, as well as in custom maps if their basic unit (the Mur'gul Slave) is added via the World Editor. A smaller race, the Draenei, have also been included, though they can only be played in the Human campaign and World-Editor created maps. The old siege engines of the Humans, Orcs and Night Elves have been renamed and remodeled, receiving new upgrades in the process. The population limit has been increased from 90 to 100.

The expansion and its subsequent patches made the addition of neutral Hero units, which appear in the single player campaigns. Neutral heroes can be used in melee maps via the Tavern, a neutral building to hire them. The tavern can also instantly revive any fallen hero, with an increased resource cost, and reduced health and mana of the revived hero. A nearby unit is needed to access the tavern.

In addition, The Frozen Throne re-introduces naval battles, which were almost completely absent in Warcraft 3. Although generally only available in the campaign, naval units can be placed using the World Editor and can be purchased from certain buildings in melee maps.

The Warcraft III Map Editor program now allows the user to do more custom work with regards to editing skills and new tileset and models to work with.