Warcraft III: Reign of Chaos (often referred to as War3 or WC3 or RoC) is a high fantasy real time strategy video game released by Blizzard Entertainment on July 3, 2002 (US). It is the second sequel to Warcraft: Orcs & Humans, and it is the third game set in the Warcraft Universe. An expansion pack, The Frozen Throne, was released on July 1, 2003 (US).