Warcraft developer issues a notice of opposition to Valve's mod based game.
The acronym DOTA may not mean a whole lot to some people, but it apparently means a lot to Blizzard. Short for Defense of the Ancients, DOTA began its life as a popular mod for Warcraft III: Reign of Chaos and the expansion The Frozen Throne. Valve, a company that is decidedly not Blizzard, took notice of the mod’s popularity and began development of a sequel, aptly titled DOTA 2.