|The original box art from WarCraft III: Reign of Chaos|
Warcraft III contains four playable races: Humans and Orcs, which had previously appeared in Warcraft: Orcs & Humans and Warcraft II: Tides of Darkness, and the Night Elves and Undead, which are new to the Warcraft mythos. Warcraft III's single-player campaign is laid out similarly to that of StarCraft, being told through all four of the game's races in a progressive manner. Multiplayer mode allows for play against other people, via the internet, instead of playing against computer-controlled characters as is done in the single-player custom game mode.
In WarCraft lore, this is ofter referred to as the Third War.
A very popular aspect of WarCraft III, and also responsible for most of it's continued play today is the Modding Community. Add-on modules called 'Maps' may be created by anyone and bring new content and gameplay, especially on Battle.net.