Warcraft III’s single-player campaign is laid out similarly to that of StarCraft (another Blizzard game), being told through all four of the game’s races in a progressive manner. 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.